Platform

Verification: Mind Uploading Verification Commons

Use the logic of PDB x BIDS x PhysioNet x OSF to define WBE success conditions and reproducible progress

Mind Uploading Research Project

Public Page Updated: 2026-04-04 Operational Specification (updated with multi-axis overlap audit and recording-frame contract sync)

How to use this page

Read this first to avoid getting lost

This page is the core blueprint of Mind-Upload. It explains how to define progress in advance rather than retroactively by aligning data, evaluation, failure conditions, and reproduction procedures first.

  • Standards, repositories, benchmarks, and audits must be built as one package.
  • Claim levels and failure conditions are fixed up front so decoding is not confused with emulation.
  • For maintenance-state claims, local causal evidence and living-human proxy evidence are kept on separate axes, so bridge assumptions must be disclosed rather than silently fused.
  • For decode / biomarker scores, the Specificity & Shortcut Card separates the target neural variable from nuisance routes and audits subject / session fingerprint plus acquisition-distribution shortcuts independently.
  • This page explains why collecting data alone is not the same as making progress.
  • The next bottleneck after observability is identifiability-driven experiment design: extra modalities do not count as progress unless they rule out competing internal-state solutions.
  • For foundation / self-supervised EEG results, the Pretraining Card now splits overlap audit into raw-recording / window ancestry, subject / session ancestry, site / device / reference / layout ancestry, task / benchmark-object ancestry, and benchmark-operations ancestry, and it also fixes the recording-frame contract / harmonization branch, adaptation, and scale / efficiency before any transfer claim is read strongly.
  • For brain-to-text and speech decode, the Neural Contribution Card fixes task constraint, language prior, candidate set, no-brain / no-LM / shuffle baselines, and subject cooperation.
  • For invasive language BCIs, communication claims are now also route-typed as throughput / expressivity, transfer initialization, bounded fixed-decoder slices, or adaptive rescue before any durability claim is read strongly.
  • For multimodal or atlas-prior results, the Fusion Card is added on top of the Observability Budget so acquisition relation, synchronization, effective-window / temporal-kernel relation, fusion model, availability / complete-case slice, hemodynamic route family including vascular-state / CVR audit versus quantity bridge, transfer window, and external validation are fixed explicitly.
  • For living-human proxy bundles, the Human Proxy Composition Card fixes direct observable by row, same-subject relation, effective time window / state axis, physiological / perturbation regime compatibility, repeatability / transfer window, model burden, incremental evidence, and residual latent-state ceiling before several proxy routes may be promoted together.
  • For living-human proxy bundles, the card now also fixes each row's evidence role, because a healthy atlas, cross-sectional contrast, same-subject baseline, change witness, and perturbation-response witness are not interchangeable bundle anchors.
  • For living-human proxy bundles, the card now also requires agreement / disagreement topology plus a resolution policy, because bundle gains can coexist with concentrated discordance in hard subgroups.
  • For living-human maintenance routes, submissions must separate proxy class, operational maturity, and calibrator role, because a real human proxy may still calibrate only one bounded hidden-state family.
  • For clearance / immune routes, the maintenance-state budget now separates macroscopic CSF oscillation, parenchyma-CSF water exchange, respiration-conditioned CSF net-flow MRI, exercise-conditioned contrast influx, CSF mobility, intrathecal tracer retention / CSF-to-blood clearance, model-based brain-to-plasma biomarker efflux, TSPO disease-context / validation-bounded PET, CSF1R route-setting PET, and COX-2 enzyme-defined PET, and it also requires carrier or target class, crossed boundary when relevant, intervention regime, and validation ceiling before any human glymphatic or neuroimmune claim is read strongly.
  • For sequential cross-regime claims that bridge live measurement to later fixation / ex vivo follow-up or cross-day reacquisition, the State-Continuity Bridge Card fixes acquisition order, elapsed time, regime continuity, coordinate transfer / deformation model, bridge validation rung, and residual drift ceiling before same-state language is allowed.
  • For diffusion-MRI tractography connectomes, the Observability Budget now requires a tractography route card that names direct observables, endpoint assignment, graph-construction choices, uncertainty, and abstention.
  • For tractography connectomes, cortical endpoint assignment and graph-construction choices are separate audit items; a graph metric without them remains pipeline-conditioned.
  • For MRSI-derived metabolic-connectome claims, the Observability Budget now requires a metabolic-similarity route card that names the metabolite set, parceling, correction model, spectral QC, and whether the object is static similarity, high-resolution metabolite-distribution mapping, or kinetic rate imaging.
  • For spectroscopy-derived human maintenance routes, the budget now separates five-metabolite 1H-MRSI similarity scaffolds, high-resolution 1H-MRSI metabolite-distribution mapping, 31P metabolite / pH balance, 31P MT exchange-flux, 31P NAD-content mapping, 31P functional NAD-dynamics routes, deuterium metabolite-mapping / absolute-quantification routes, and deuterium kinetic-rate imaging, because they constrain different inferential objects and carry different cohort, hardware, and model burdens.
  • For SV2A / synaptic-density PET claims, the maintenance-state budget now requires a route card that names tracer / quantification route, comparison family, functional target, and abstention before regional density is overread as current synaptic state or presynaptic release machinery.
  • For destructive ultrastructure claims, the Observability Budget now requires a destructive-structure route card that names preservation route, live-to-fix delay, registration scope, section-loss / segmentation QA, throughput scale, and omitted live-state families.
  • For connectome-constrained predictors, the Observability Budget now requires a conditional-model route card that names the structural prior, fitted degrees of freedom, task/state regime, omitted mechanisms, validation class, and abstention boundary.
  • For inverse and model-based claims, the Identifiability Card now separates observability, structural identifiability, and practical identifiability, and requires candidate-space, experiment-design, and abstention disclosure before uniqueness language is allowed.
  • For inverse and model-based claims, ambiguity class must be named explicitly: symmetry / reparameterization, regime-limited degeneracy, omitted-mechanism discrepancy, and task-variable interaction ambiguity are not one failure mode.
  • For intrinsic-excitability / homeostatic-set-point claims, the maintenance-state budget now requires a route card that names claim family, physiological locus, direct observable, time axis / intervention window, human evidence class / proxy class, and abstention.
  • For sleep replay claims, the maintenance-state budget now requires a route card that names preparation, event definition, timing policy, item-selection regime, and abstention before overnight gain is read mechanistically.
  • For myelin / oligodendrocyte claims, the maintenance-state budget now requires a route card that names claim family, structural unit, function target, recovery boundary, human quantity type / proxy class, and abstention.
  • For ionic / chloride claims, the maintenance-state budget now requires a route card that names claim family, direct ionic observable, spatial regime, perturbation route, human quantity type / compartment model, and abstention.
  • For neuromodulatory claims, the maintenance-state budget now requires a route card that names claim family, transmitter axis, direct observable, challenge or administered-drug route, time window / model burden, and abstention.
  • For clearance / immune claims, the maintenance-state budget now requires a route card that names claim family, transport-side versus effector-side object, direct observable, carrier / analyte class plus crossed boundary or molecular target / tracer family, driver / perturbation or intervention regime, human model / validation burden, function target, and abstention.
  • For neurovascular-unit / BBB / pericyte claims, the maintenance-state budget now requires a route card that names claim family, biological locus, direct observable, carrier / transport regime plus crossed boundary, driver / perturbation route, human model / validation burden, function target, and abstention.
  • For bioenergetic / mitochondrial claims, the maintenance-state budget now requires a route card that names claim family, compartment, direct energetic observable, quantity type / model burden, function target, human proxy class, and abstention.
  • For glial substrate-routing claims, the maintenance-state budget now requires a route card that names claim family, supplier cell / neuronal sink, fuel object / carrier, regime trigger, transport route, and abstention.
  • For astrocyte-state claims, the maintenance-state budget now requires a route card that names claim family, direct astrocyte observable, perturbation route, function target, human target / quantity type / tracer burden, and abstention.
  • For phospho-signaling / second-messenger claims, the maintenance-state budget now requires a route card that names claim family, assay / direct observable, compartment scope, timing window, causal leverage, and abstention.
  • For post-transcriptional RNA-state claims, the maintenance-state budget now requires a route card that names claim family, RNA control axis, assay / direct observable, downstream object, time window, human observability ceiling, and abstention.
  • For local proteostasis / synaptic-tagging claims, the maintenance-state budget now requires a route card that names claim family, integrative unit, direct observable, turnover window, perturbation route, human observability ceiling, and abstention.
  • For DCM / effective-connectivity claims, the Observability Budget now requires an effective-connectivity route card that names candidate model space, observed-subsystem closure / latent-confound audit, node-definition policy, processing / first-level design policy, sampling / transformation sensitivity, observation-model assumptions, validation, reliability, and abstention.
  • For irreversibility / thermodynamic claims, the route card now names signal route, coarse-graining / timescale, observed-state closure / hidden-degree risk, estimator family plus dynamical assumptions, null control, quantity type, physiology-side grounding when energetic language is used, and cost isolation before any claim ceiling is raised.
  • For ESI claims, simulation / phantom, stimulation ground truth, simultaneous invasive recording, and postsurgical outcome are separate validation classes; 'externally validated' alone is insufficient.
  • For ESI claims, one best inverse map is not enough; this page now asks for cross-solver / cross-parameter spread or posterior / ensemble width before anatomical claims are read strongly.
  • For ESI claims, a field-formation audit now asks whether the target source class should reach the scalp at all given extent, orientation, cancellation, and tissue-model assumptions.
  • At L2 and above, the latent-state error budget is added on top of the Observability Budget so the still-unobserved states that stop the claim are disclosed.
  • At L2 and above, perisynaptic ECM / PNN state is separated from synaptic weights and glia when a claim depends on adult plasticity, receptor mobility, or memory stabilization.
  • At L2 and above, post-transcriptional RNA-state is separated from gene-level transcript abundance and proteostasis when a claim depends on isoform choice, m6A-dependent translation / degradation, or RNA-editing ratios.
  • At L2 and above, phospho-signaling / second-messenger state is separated from transcriptomics, proteomics, and nominal weights when a claim depends on phosphosite occupancy, kinase/phosphatase balance, or signaling nanodomains.
  • At L2 and above, local proteostasis / synaptic-tagging state is separated from current weights and transcription when a claim depends on late-LTP capture, consolidation, or reconsolidation.
  • At L2 and above, cargo-transport / cytoskeletal trafficking state is separated from proteostasis and bioenergetics when a claim depends on compartment-specific delivery of receptors, endosomes, RNA cargoes, or presynaptic components.
  • At L2 and above, ionic milieu / chloride homeostasis is separated from excitability and glial support when a claim depends on inhibitory polarity, rhythm stability, or state transitions.
  • At L2 and above, shared extracellular / electrical state is separated from chemical synapses and ionic proxy classes, and shared extracellular / electrical-state claims now require a route card naming claim family, direct extracellular / electrical observable, spatial regime, perturbation / calibration route, human evidence class, and abstention.
  • For thermal-state claims, the maintenance-state budget now requires a route card that names claim family, direct thermal observable, driver / perturbation route, time window, function target, human proxy class, and abstention.
  • At L2 and above, bioenergetic / mitochondrial support is separated from glial support when a claim depends on repeated-burst reliability, local ATP reserve, or dendritic plasticity.
  • At L2 and above, astrocyte network / ensemble state is separated from generic support background when a claim depends on recall, multiday stabilization, or fear-state representations.
  • At L2 and above, clearance / immune support is separated from astrocyte-state when a claim depends on multiday recovery, protein clearance, or microglia-mediated synaptic maintenance.
  • At L2 and above, delay is treated as timing-state rather than one scalar, so device latency, biological conduction timing, and human macro timing proxies are not collapsed into one number.
  • At L2 and above for intervention / closed-loop results, the Intervention Card fixes trigger rule, timing audit, control / sham, safe stop, and recalibration burden.
  • For online human-in-the-loop results, a Co-Adaptation Log separates user learning, decoder updates, and application / autonomy changes before same-session gains are read as fixed-decoder stability.
  • At L3 and above for embodied-loop results, the Body / Environment Boundary Card fixes which sensory, motor, and interoceptive channels were preserved, substituted, or omitted, and now also asks which slow internal-milieu routes such as circadian phase, glucocorticoid state, and insulin / metabolic regime were matched or left latent.
  • For cross-day or longitudinal claims, the Temporal Validity Card audits fixed decoder interval, state annotation, recalibration burden, and transfer ceiling independently.
  • For cross-day or remote-memory claims, the maintenance-state error budget reports sleep history, sleep-integrity / disturbance burden, NREM substate / physiology gate, sleep architecture / replay-coupling state, neurovascular support, and other support-state proxies separately, so temporal success is not auto-promoted to a maintenance-consistent claim.
  • For chronic invasive claims, signal-chain drift and implant tissue response are audited separately rather than being folded into unit-identity audit alone.
  • For outputs that include probabilities, intervals, prediction sets, or abstention, the Calibration & Abstention Card fixes fit/calibration/test separation, evaluation family, coverage-risk, and fallback behavior.
Best for
Readers who want the site's core policy and anyone checking what must exist before progress can honestly be claimed
Reading time
15-25 min
Accuracy note
This page does not claim that WBE is already possible. It defines the substrate needed to test whether it is.

Relatively clear at this stage

What we know now

  • Comparable progress does not exist unless standards, shared infrastructure, evaluation, and auditing are aligned together.
  • At L0-L2, reproducibility and falsification conditions can be designed in advance.
  • Decode and emulate are distinct claims and require different evidence.
  • A maintenance-state claim that combines rodent causal evidence with human proxy evidence still needs an explicit bridge statement naming the matched state family, proxy class, and remaining latent controller.
  • The same decoding score is not target-specific evidence if eye movement, EMG, uninstructed movement, auditory feedback, subject / session fingerprint, or acquisition-distribution shortcuts remain unresolved.
  • A foundation-model score without corpus-overlap, harmonization, benchmark object, adaptation, and benchmark-version disclosure, including split randomness / hidden grouping, remains qualified decoding evidence rather than portable transfer evidence.
  • A multimodal result is not one thing; simultaneous acquisition, geometric fusion, invasive calibration, and atlas priors must be audited separately.
  • Several living-human proxy routes do not add automatically; without same-subject relation, repeatability / transfer disclosure, quantity-type disclosure, model disclosure, and cross-row calibration, the bundle remains below state-identification language.
  • A bundle-level gain can still hide concentrated discordance in clinically hard strata, so disagreement topology and its resolution policy are separate audit items.
  • A same-subject or same-brain pipeline can still be sequential and bridge-limited; live-to-fix delay, regime mismatch, deformation correction, and state drift remain separate audit items.
  • For ESI, passing one validation class does not auto-pass the others; stimulation error, simultaneous invasive concordance, and postsurgical outcome answer different questions.
  • For ESI, inverse-family, package, parameter, and conductivity choices can materially shift the reconstructed source, and different inverse families can expose different uncertainty objects, so solver-disagreement and uncertainty width are themselves audit items.
  • For ESI, the target generator may already be filtered out upstream by field formation, so visibility, cancellation, and CSF-aware head-model assumptions are separate audit items from inverse choice.
  • A BOLD or fNIRS amplitude difference without vascular-state / CVR audit remains a hemodynamic-limited difference rather than a clean neural difference.
  • A vascular-state / CVR audit does not by itself create an oxygen-metabolism or neurovascular-support readout; uncalibrated amplitude, transfer-audited amplitude, and model-conditioned OEF / CMRO2 routes remain different claim families.
  • A 1H-MRSI metabolic-connectome label without metabolite-set, parceling, correction-model, and QC disclosure remains a macro-biochemical similarity scaffold rather than tractography or flux imaging.
  • A spectroscopy label without quantity-type disclosure remains too coarse; 1H-MRSI similarity, high-resolution 1H-MRSI metabolite-distribution mapping, 31P metabolite / pH balance, 31P MT exchange-flux, 31P NAD-content mapping, 31P functional NAD-dynamics routes, deuterium metabolite-mapping / absolute-quantification routes, and deuterium kinetic-rate imaging are not interchangeable proxy classes.
  • A connectome-constrained activity predictor without structural-prior, fitted-parameter, task-regime, omitted-mechanism, validation, and abstention disclosure remains a conditional model rather than internal-state recovery.
  • More direct observables do not by themselves guarantee unique recovery; degeneracy can persist unless candidate-model space, recorded subset, and perturbation design are disclosed.
  • Ambiguity is not one scalar: symmetry / reparameterization, narrow-regime degeneracy, omitted-mechanism discrepancy, and representation ambiguity require different audits and different remedies.
  • An effective-connectivity label without candidate-model, processing-policy, validation, and reliability disclosure remains a model-conditioned hypothesis rather than discovered causal wiring.
  • An irreversibility label without signal-route, coarse-graining / timescale, estimator-family, dynamical-assumption, and quantity-type disclosure remains an exploratory auxiliary result rather than a portable thermodynamic measurement.
  • A synapse list or weight estimate does not by itself fix perisynaptic ECM / PNN state, so plasticity and stabilization claims need a separate ceiling.
  • A cell atlas or gene-level transcript count does not by itself fix post-transcriptional RNA-state, so isoform-, m6A-, and RNA-editing-dependent claims need a separate ceiling.
  • A transcriptomic or proteomic snapshot does not by itself fix phospho-signaling / second-messenger state, so phosphosite-dependent plasticity and nanodomain-signaling claims need a separate ceiling.
  • A weight estimate does not fix which tagged synapses or dendritic branches capture plasticity-related proteins, so late-stabilization claims need a separate proteostasis ceiling.
  • A weight estimate or local-translation clue does not by itself fix branch- or bouton-specific cargo delivery, so compartment-specific stabilization and synaptogenesis claims need a separate transport ceiling.
  • Sleep duration or deprivation alone does not fix slow-oscillation / spindle / ripple coordination, sleep-integrity burden, or NREM physiology gating, so overnight retention claims need a separate sleep-architecture ceiling.
  • A connectome, cell type, and weight estimate do not by themselves fix ionic milieu / chloride homeostasis, so inhibitory sign and state-transition claims need a separate ceiling.
  • A chemical connectome and nominal inhibition do not by themselves fix electrical coupling, endogenous field effects, or local inhibitory driving force, so fast-synchrony and oscillatory-coordination claims need a separate ceiling.
  • A connectome, cell type, and timing proxy do not by themselves fix local thermal-state, so field-potential and sequence-timing claims need a separate ceiling.
  • A connectome, cell type, and glial proxy do not by themselves fix local ATP reserve or mitochondrial positioning, so repeated-burst and dendritic-plasticity claims need a separate bioenergetic ceiling.
  • A glial proxy or generic metabolic note does not by itself fix astrocyte network / ensemble state, so recall, reconsolidation, and multiday-stabilization claims need a separate astrocyte-state ceiling.
  • A CSF-mobility, contrast-influx, net-flow, intrathecal-clearance, or biomarker-efflux result without carrier / boundary / validation disclosure and cell-specific immune / synaptic-maintenance disclosure remains a macro clearance-transport proxy rather than local clearance-controller evidence.
  • Passing a hardware latency audit is not the same as recovering biological timing-state; claims that depend on phase or synchrony need both sides separated.
  • Passing a latency audit is not the same as fixing the body / environment boundary; L3 claims still need retained/substituted loop disclosure plus slow internal-milieu disclosure.
  • In chronic invasive recording, unit-matching uncertainty and tissue response around the implant are separate audit items.

Still unresolved beyond this point

What we still do not know

  • There is still no settled answer on which causal-structure approximation would be sufficient for L4 personal identity.
  • A final success condition integrating thermodynamics, closed-loop behavior, and identity is still incomplete.
  • L5 institutional design cannot be determined by technical requirements alone.

Learn the basics

Check the basics in the wiki

One Problem

To keep mind uploading and WBE from remaining only a dream narrative, the first requirement is a shared rule set. Mind-Upload puts data layout, evaluation, failure judgment, and reproduction procedures in place first so anyone can check the same result against the same criteria.

What To Fix First On This Page

This page aligns four things first: standards (how artifacts are structured), shared infrastructure (where they live), evaluation (what comparisons are allowed), and audit (how failures and updates are recorded). Any one of these on its own is insufficient for comparable progress.

What You Want To Know Now Read This Section First What It Gives You
I want to know what this site calls "progress" The One Question This Site Is Solving Shows what must be satisfied before progress can be claimed, in terms of claim level and reproducibility conditions.
I want to know the minimum public goods that must exist Deliverables Of The Mind-Upload Commons Explains the division of roles among the Data Standard, Benchmark, Registry, and Leaderboard.
I want to know what is already implemented Implementation Status Separates what is already designed from what remains unpublished or unimplemented.
I only want the stricter verification conditions Observability Budget / Verification Rigor Requirements Shows what is directly observed, what is inferred, and how uncertainty and preprocessing fidelity are handled.
I want to know how this differs from ordinary accuracy evaluation Causal Perturbation Suite Explains why comparison must include responses to changed conditions, not only output matching.
I want to know why thermodynamics matters here Thermodynamic Verification Requirements Explains why verification must cover not only information processing but also dissipation and energy constraints.
If You Get Stuck On The Difference Between Missing, Unimplemented, And Incomplete

This page distinguishes among things that are already designed, things whose public operations are still unprepared, and things still lacking benchmark or audit support. If you want a one-page guide to those progress terms, see Wiki: Reading Partial Solutions, Exploratory Stages, And Unfinished Areas.

If You Get Stuck On What "Known / Unknown" Means

The known/unknown sections and accuracy assumptions at the top of this page mark the boundary of what can be asserted. If you want that logic organized as a site-wide reading rule, see Wiki: How To Read "What Is Known / Not Yet Known".

If You Get Stuck On How To Use The Header Guidance

Verification is a long blueprint, so it helps to use the top-of-page guidance blocks, how to read this page, who it is for, the accuracy assumptions, and the wiki route, to decide your reading scope before entering the main text. For that shared rule set, see Wiki: How To Read Public Page Headers.

If You Want The Next Page Chosen By Claim Level

Because this page is a blueprint for every level, the next page changes depending on whether you want L0 practical work, L3 closed-loop work, or L4 identity questions. For a one-page route map by level, see Wiki: Reading Routes By L0-L5 Level.

If You Are Unsure About The Roles Of Practical Pages

Verification is the blueprint for success and falsification conditions. Entry datasets and the minimum L0 loop belong to Datasets and Hands-On Work, reference examples belong to the Casework section on this page, and proposal organization plus external dependency separation belong to the integrated proposal section of the Contribution Guide. For a one-page guide to the practical pages only, see Wiki: Practical Page Reading Guide.

If You Want A Single Practical Route From EEG To L0

If you want one straight route from the EEG introduction, through public dataset selection and the L0 hands-on section inside Datasets, to checking on this page what was actually satisfied, see Wiki: One Straight Route From EEG To L0.

If You Want To Choose The Next Single Page After This One

After reading Verification, if you want a one-page map of whether to return to L0 implementation, move to L2 intervention testing, examine L3 closed loops, or examine L4 identity, see Wiki: Four Routes After Verification.

If You Understand The Meaning But Are Unsure Whether You Can Act Next

If you want to separate "I read the summary" from "I checked the conditions and know where to make changes," see Wiki: The Difference Between Understanding And Being Ready To Proceed.

TL;DR (For Human Readers)

Remember Only These Three Things

  • Metrics come before claims: if you do not fix what counts as progress, results cannot be compared.
  • Data alone is still insufficient: standards, a shared repository, and evaluation benchmarks have to come together.
  • WBE especially invites scope substitution: do not confuse decoding (correlation) with emulation (generation / causality).

The One Question This Site Tries To Solve

Question: Fix in advance what must be satisfied before we call something "progress," and build a state in which third parties can reach the same conclusion from the same inputs.

Outcome

  • Fix the win condition: state the Claim Ladder (L0-L5) explicitly and prevent scope substitution such as describing L1 as if it were L4.
  • Provide reproducible inputs: standards such as BIDS plus metadata must let third parties receive and rerun the analysis target.
  • Provide comparable outputs: publish an evaluation suite that includes scores, logs, and failure cases.
  • Support continuous operation: accumulate public goods through benchmark updates, versioning, and audit logs.

Minimum Evidence Needed At Each Claim Level

Claim Level Minimum Required Evidence What Still Remains Insufficient
L0 Reproducible Analysis The data, code, environment, and execution logs are all available, and a third party can reproduce the same result. This alone cannot support strong claims about identity or consciousness.
L1 Decoding Baseline comparisons, leakage checks, and reproducible accuracy under non-OOD conditions. This still does not show internal causal structure or generative ability under unseen conditions.
L2 Generation And Intervention Prediction Prediction agreement under unseen conditions, counterfactuals, and condition changes. This still does not establish closed-loop stability or long-term operation.
L3 Closed Loop Stability in real-time operation, latency management, safe-stop conditions, and a disclosed body / environment boundary with retained or substituted loop channels. Even then, identity and rights questions still require separate verification.
L4 Identity Preregistered continuity tests and branching checks for memory, values, and learning. Full establishment at the level of social institutions and long-term governance is still a separate stage.
L5 Social deployment Operational design including rights, consent, stop criteria, and audit structure. A technical demo alone does not reach this stage.
At L4, The Test Design Itself Is The Bottleneck

For identity claims, preregistering what is being treated as continuous matters more than merely reporting a high score. If you want a beginner guide to memory, values, learning, branching, and longitudinal continuity, see Wiki: Identity Evaluation and Continuity Tests.

If You Get Stuck At The L3 Entry Point

Closed-loop work needs more than offline accuracy. It also needs end-to-end latency, jitter, drift handling, safety-stop design, and an explicit statement of which body / environment loops were preserved or replaced. For a beginner guide to the timing side, see Wiki: Closed Loops, Latency, Jitter, and Safety Stops.

Check These Three Things Before Looking At Scores

Before reading L1 accuracy or L2 prediction agreement, check what unit train/test was split on, whether preprocessing or normalization looked at the test set, and whether the test set was reused for model selection. If those points are unclear, the evaluation foundation fails before claim level even becomes relevant. For the shortest beginner guide, see Wiki: Data Splits and Leakage.

What This Is Not

Non-goals

This page is not where mind uploading is declared possible or impossible. What Mind-Upload is building is a verification substrate that can eventually justify such a claim, meaning the rules for measurement, evaluation, and falsification.

Deliverables Of The Mind-Upload Commons

A School-Test Analogy

The roles of these four components become easier to see with a school-test analogy. The Data Standard is the same answer sheet, the Benchmark Suite is the same grading rubric, Registry & Prereg is the set of rules distributed before the exam, and Leaderboard & Model Cards is the report card that includes not only scores but also how the test was solved and where mistakes occurred.

If You Get Stuck On The Difference Between Standards, Repositories, And Validators

BIDS, OpenNeuro, PhysioNet, the BIDS Validator, and benchmarks are all parts of research infrastructure, but they do different jobs. For a beginner explanation of that division of labor, see Wiki: Standards, Repositories, Validators, and Benchmarks.

01

Data Standard

Build a shareable standard, based on BIDS/EEG-BIDS, that extends metadata for tasks, stimuli, synchronization, QC, and anonymization into a form that remains analyzable by others.

BIDSEEGMetadataQC
02

Benchmark Suite

Define tasks that cover not only decoding correlations but also counterfactual / intervention prediction and closed-loop stability, so results can be compared against the same ruler.

CounterfactualInterventionClosed-loop
03

Registry & Prereg

Preregister experiments and analysis plans so exploration and verification stay separated. Submit templated assumptions, evaluation metrics, and stop conditions first, then append update diffs to the review log to reduce reporting bias.

PreregistrationProtocolAudit
04

Leaderboard & Model Cards

Publish not only scores but also leakage countermeasures, failure cases, compute usage, known weaknesses, and, for L1 and above, an Observability Budget that states what was directly observed and what remains latent state, so reproducibility and safety are preserved.

LeaderboardReproducibilitySafety
If You Get Stuck On Updates, Branching, And Stop Rules

Even with a registry in place, it is easy to get stuck on how much updating to allow, how to log branches, and how to distinguish stop rules from kill switches. For a beginner guide to those issues, see Wiki: Update, Branching, and Stop Rules.

Missing Component What Breaks Without It
No Data Standard Input formats and conditions drift apart, making it hard to tell whether two groups are even solving the same task.
No Benchmark Suite Each group uses a different ruler, so even a claimed win cannot be judged as genuine progress.
No Registry & Prereg People can choose favorable metrics and conditions after the fact, blurring the line between failure and success.
No Leaderboard & Model Cards Scores travel alone while leakage, weaknesses, and missing reproduction steps are too easily overlooked.
Raw EEG Alone Is Not A Data Standard

Comparable inputs require more than waveform files. They also need event markers, stimulus logs, time synchronization, and records of bad channels / bad segments. If those remain ambiguous, later replication of the same task becomes impossible. For a beginner guide, see Wiki: Event Synchronization and Measurement Logs.

Example: What One Comparable Advance Looks Like

If the example is "a model that estimates state from EEG," the commons needs the following four components.

Component Minimum Contents (Example)
Input (Data) A BIDS-compliant data package, measurement conditions, sync logs, QC logs, and the scope of anonymization/consent
Procedure (Code / Protocol) A fixed recipe for preprocessing -> features -> training -> evaluation, plus environment info and random seeds
Output (Metrics) Scores for accuracy / uncertainty / robustness, failure cases, and deltas from baselines
Falsification Leakage checks, counterfactual tests, and logs of prediction failures when stimulus conditions change

Once these are aligned, comparison becomes possible under the same conditions regardless of who runs the work, and only then can progress accumulate honestly.

If This Still Feels Too Abstract, Use The Walkthrough

If you want to see how these four elements actually fit together in a small EEG example, step by step, see Wiki: Verification Example Walkthrough. The public page keeps the blueprint concise, while the tutorial material lives on the wiki side.

If You Want Only The Minimum L0 Artifact Set First

This page is the blueprint for the full public-good stack. If you want the shortest path to a single pack containing BIDS, the Validator, QC, splits, baselines, execution steps, and failure cases, see Wiki: Minimum Artifact Pack For L0.

At L1 And Above, "What Was Directly Observed" Is Part Of The Artifact

The weakness exposed in this re-audit was that even when hidden states were listed, the artifact still did not fix which measurement stack directly observed which variables. Accordingly, for results at L1 and above, we attach an Observability Budget in addition to the standard model card, including the claim ceiling and abstention conditions.

If You Get Stuck On Operational Terms

Baselines, benchmarks, preregistration, model cards, and failure cases all matter, but they do not play the same role. If you want that difference organized from the ground up, see Wiki: Baselines, Preregistration, and Model Cards.

If You Get Stuck On Uncertainty Or Causal Equivalence Classes

In Verification, estimates derived from observed signals are not treated as the single truth by default. If you want the relationships among inverse problems, ESI, DCM, SCM, and causal equivalence classes organized first, see Wiki: From Observation To Estimation. If you also want point estimates, intervals, and abstention under low confidence, see Wiki: Uncertainty, Calibration, and Abstention.

If A Paper Says "Effective Connectivity"

On this site, the phrase alone does not count as causal-wiring discovery. DCM and related effective-connectivity methods are read here as model-conditioned causal hypotheses unless the paper also discloses the compared model space, observed-subsystem closure / latent-confound audit, node-definition policy, processing / first-level design policy, neural / hemodynamic assumptions plus sampling / transformation sensitivity, family comparison or model recovery, perturbation or external validation, test-retest window, and abstention boundary. The shortest operational rule is Wiki: effective-connectivity route card.

Effective-Connectivity Claims Also Need Partial-Observation, Processing-Policy, And Sampling Audits

On this site, model-space disclosure alone is still not enough for a directed graph. The artifact also has to say which parts of the system were unobserved, whether node definitions stayed stable across reasonable alternatives, whether reasonable processing choices such as GLM design or contrast definition materially moved the inferred edges or parameter certainty as in Zhang et al. (2024), and whether the reported directions survived the relevant sampling / observation-transform assumptions. Even when reliability is promising, Ma et al. (2024) show that scan duration and sample size still matter. If those are opaque, the claim stays at the model-conditioned level.

Designs Borrowed From Historical Casework

The design of Mind-Upload is not a "new invention" but a transfer of verification patterns that other fields have already worked out. The key points from the former casework.md have been integrated into this section so they can be compared directly here.

How To Transfer A Pattern Correctly

Patterns such as PDB (a single archive), BIDS plus OpenNeuro (standard plus repository), PhysioNet (data plus evaluation), and OSF/PROSPERO (preregistration) create structures in which progress can be measured even across different fields. WBE especially requires success conditions and falsification conditions to be fixed in advance.

Prior Pattern Problem Solved In That Field Design Borrowed By Mind-Upload
PDB / INSDC It reduced the problem of references being scattered, where comparison breaks even when people think they are looking at the same data. We place a single reference source, stable IDs, version control, and minimum submission-time validation first.
BIDS + OpenNeuro It reduced the problem that differences in brain-measurement formats and missing metadata made replication difficult. We design BIDS and the sharing platform as one package rather than separating "how to store it" from "where to store it."
PhysioNet / ImageNet / MLPerf It reduced the problem that tasks and metrics were inconsistent, making year-over-year comparison of progress impossible. We fix baselines, submission formats, comparison metrics, and leakage audits so improvement can be measured.
OSF / PROSPERO It reduced the problem that exploration and verification were mixed together and only favorable reports survived. We preserve preregistration, stop conditions, failure cases, and reasons for deferral as part of the artifact set.
W3C / IETF / Unicode It reduced the problem that separate systems would not connect and would fail through semantic mismatch. We align terminology, metadata vocabularies, synchronization logs, and audit vocabularies for interoperability first.
Why We Do Not Copy Historical Cases Unchanged

WBE includes strong issues such as identity and causal equivalence, so it is not completed by data sharing alone. Even so, the ordering itself, putting standards, repositories, benchmarks, registration, and audit in place first, can be borrowed quite strongly from successful cases in other fields.

Implementation Status (Transparency Report)

The Frank Current State

For scientific integrity, we state the current implementation status of each deliverable explicitly. Please do not confuse "the design document is complete" with "the implementation is complete."

Deliverable Design Status Implementation Status Next Step
Data Standard The BIDS/EEG-BIDS-compatible extension specification has been documented. No sample dataset has been published yet. The validator is not implemented. Publish a BIDS conversion pipeline and validation scripts for one dataset.
Benchmark Suite The task definitions and metric definitions have been documented. The benchmark code and baseline results are not yet public. Implement and publish one minimum L0/L1 benchmark set.
Registry & Prereg The template design is complete. The registration system has not been built. Only the template is documented. Build a lightweight registration flow through OSF integration or GitHub Issues.
Leaderboard The Model Card format has been defined. There is no entry yet based on real data. Register the first entry after the benchmark implementation exists.

Scientific Gap Analysis

For the Verification Commons to contribute to science, it must recognize the following gaps and address them as priorities. The March 2026 re-audit changed the ordering: the next technical bottleneck is not simply "more data" but more discriminative data under explicit claim ceilings.

The generic gap list was too weak after the identifiability audit

Villaverde (2019) and Villaverde et al. (2019) separate observability from identifiability, Prinz et al. (2004) showed that similar circuit activity can arise from disparate parameters, Rasero et al. (2024) showed that similar human activation patterns can still hide different macroscopic network states, Beiran & Litwin-Kumar (2025) showed that connectome-constrained predictors remain degenerate until additional recordings collapse the compatible dynamics, and Liu et al. (2025) showed that practical identifiability depends on data-collection policy itself. Therefore, the central question for this site is no longer only whether a measurement stack is rich, but whether it actually rules out the main alternative explanations.

Priority Gaps To Address

  • Identifiability-driven experiment design: define in advance which perturbations, state transitions, and extra measurements are expected to separate near-equivalent models before collecting a larger multimodal bundle.
  • Same-subject calibration for proxy bundles: when several living-human proxy rows are combined, require direct-observable disclosure, shared-driver audit, and an external calibrator so agreement is not mistaken for state closure.
  • Maintenance-state longitudinal logging: add cross-day, sleep / wake, recovery, and support-state logging so same-day fit is not promoted to maintenance-consistent recovery.
  • L0 benchmark with full route-card artifacts: publish one public benchmark that ships data, code, QC logs, calibration route, abstention rule, and route cards together, so the audit logic becomes executable rather than aspirational.
  • Negative-result and failure-mode publication: keep failure cases, abstentions, and route-card-triggered claim ceilings visible so the field does not relearn the same shortcuts in private.

2026-03 Addendum: Make Observability Budget a required submission

The most important update in this pass is that the criticism that ``important hidden state remains'' has finally been translated into submission format. Yao et al. (2023) show that whole-brain atlases strengthen cell-type taxonomy and spatial arrangement, but do not directly provide current state. Dorkenwald et al. (2024) and MICrONS Consortium et al. (2025) greatly advance same-brain structure-function links, but still remain in the domain of local conditional prediction. Furthermore, as Unnwongse et al. (2023) and Hao et al. (2025) show, even externally validated HD-EEG / ESI remains dependent on source depth and head model and does not provide a generally unique restoration. Therefore, this site requires an Observability Budget for submissions above L1 so that they first state what was directly observed and what remains estimated.

Observability Budget column Minimum things to write What happens without this
measurement stack Whether you used EEG / MEG / fMRI, whole-brain atlas, Patch-seq, volume EM, same-brain function, local transmitter / glia imaging. Only the words "multimodal," "atlas," and "same-brain" take on a life of their own, and the differences in direct observable quantities disappear.
direct observables Write only the variables directly measured by the stack. BOLD / HbO / HbR, field potential, cell-type label, EM synapse, local ACh dynamics, etc. It is easy to misread the estimated latent state as if it had been observed from the beginning.
hemodynamic route family / quantity type For BOLD / fNIRS / hemodynamic stacks, state whether the claim rests on uncalibrated amplitude, transfer-side calibration (CVR / baseline perfusion / short separation), or a model-conditioned quantity bridge such as OEF / CMRO2, and name the calibration or physiology model explicitly. A nuisance-controlled amplitude result is easily misread as an oxygen-metabolism or neural-state measurement, and a quantitative route is easily misread as model-free.
remaining latent state List the remaining variables, including weights, local proteostasis / synaptic-tagging state, perisynaptic ECM / PNN state, ionic milieu / chloride homeostasis, delay/myelin, intrinsic excitability/homeostatic set point, neuromodulation, glia/metabolic support, sleep-history, and, for hemodynamic stacks, unresolved vascular transfer state such as baseline vascular state / CVR or superficial systemic contamination. It is easier to roll up non-state-complete results to emulation-complete or internal state unique solutions.
external calibration route Write the named validation class, such as simulation / phantom, intracranial stimulation, concurrent invasive recording, postsurgical outcome, same-brain co-registration, and Patch-seq bridge, together with which error term it audits. It is easy to confuse improvements in accuracy and visualization with getting closer to the ground truth.
solution-set stability For inverse/model-based claims, write the cross-solver / cross-parameter spread or posterior / ensemble width, and say whether the displayed map is best-case, median, or ensemble summary. It is easy to publish one clean-looking map and hide that the inference is strongly method-conditioned.
validity horizon Write how far within-session, cross-state, cross-day, perturbation, and recovery have been verified. It is easier to unduly extend same-day fit into long-term stability or memory claims.
claim ceiling and abstention Write the upper limits that the results can reach, such as "macro state tracking," "structural scaffold," and "local conditional prediction," as well as the conditions under which you will quit if they exceed them. It is easy to overtranslate the advancement of the paper and falsely promote L1 results to L2/L3/L4.

Identifiability Card for inverse and model-based claims

2026-03-20 addendum: observability and identifiability must be logged separately

The remaining weakness after adding the Observability Budget was that richer measurement could still be overread as if it had already collapsed the solution set. The primary literature does not support that shortcut. Villaverde (2019) reviewed that observability and structural identifiability are different theoretical questions, and Villaverde et al. (2019) showed that unknown states, parameters, and inputs must often be treated jointly rather than as separable audits. In neuroscience, Prinz et al. (2004) showed that similar circuit activity can arise from disparate parameters, Rasero et al. (2024) showed that similar human activation patterns can still hide different macroscopic network states, and Beiran & Litwin-Kumar (2025) showed that connectome-constrained recurrent networks remain degenerate until additional recordings collapse the space of compatible dynamics. Liu et al. (2025) then showed that practical identifiability depends on experiment design and data-collection policy, not only on the estimation algorithm. Therefore, this site now asks inverse and model-based claims to attach an Identifiability Card on top of the Observability Budget.

Identifiability Card field Minimum disclosure What this site stops claiming if absent
Claim object Name whether the submission claims source location, latent state, parameter set, effective connectivity, controller variable, or connectome-conditioned predictor, and specify the timescale and spatial unit of that object. The paper is not read as if all forms of "recovery" were interchangeable.
Structural identifiability layer State whether the declared equations / priors / outputs make the target theoretically identifiable, and name known symmetries, reparameterizations, or variables that remain non-identifiable even with noise-free data. Finite-data success is not promoted to in-principle uniqueness.
Practical identifiability layer Report the finite-data evidence such as posterior width, profile likelihood, bootstrap / ensemble spread, SNR dependence, and sample or time-window dependence under the actual dataset. A theoretically identifiable model is not read as practically recoverable from the submitted data.
Competing solution set Name the alternative model families, near-equivalent fits, solver families, or local optima that remained competitive, and summarize how different their internal variables still are. One good fit is not read as recovered mechanism or unique internal state.
Experiment-design leverage Disclose which unresolved ambiguity the protocol was designed to break, which perturbations, regime shifts, or active data-collection choices were intentionally used to collapse it, and say explicitly if the evidence is passive-observation only. Passive fit is not promoted to solved identification just because prediction improved.
Coverage / recorded subset Name which regions, neurons, channels, or variables were actually observed, how that subset was chosen, and what latent compartments remain unmeasured but could still change the solution. Sparse or convenience coverage is not read as state closure for the whole system.
Held-out falsification route Report held-out perturbation prediction, external calibration, or an explicit failure test that the chosen solution had to pass rather than explain post hoc. Observed fit is not read as uniquely recovered state dynamics.
Abstention boundary Name which uniqueness claim is not being made, and under which alternative assumptions the interpretation changes materially. The result is not promoted from predictive/localized/model-conditioned evidence to unique recovery language.
2026-03-28 addendum: ambiguity class must be named before a richer protocol counts as informative

The remaining weakness after adding the Identifiability Card was that ambiguity could still be described as one generic scalar called more data needed. The primary literature does not support that shortcut. Massonis & Villaverde (2020) showed that structural unidentifiability can be generated by Lie symmetries and may require symmetry-breaking observables or reformulation, Prinz et al. (2004) and Beiran & Litwin-Kumar (2025) showed that distinct parameters can still generate near-equivalent dynamics even when connectivity is fixed, White et al. (2016) showed that extra experiments can tighten nominal uncertainty while mainly exposing omitted-mechanism error, and Langdon & Engel (2025) showed that preserving causal interactions among task variables can recover computations that correlation-only reductions miss. Therefore, this site now asks authors to name the ambiguity class before calling a new condition or modality informative.

Ambiguity class Typical failure pattern What can actually break it What does not count on this site
Symmetry / reparameterization ambiguity Different parameter or state transformations leave the declared outputs unchanged, so several solutions remain equivalent even with ideal data. Add symmetry-breaking observables, known inputs / initial conditions, or an explicit reformulation that removes the non-identifiable transformation. More optimizer restarts, longer fitting, or more repeats of the same protocol.
Regime-restricted degeneracy Different internal states or biophysical parameter sets fit one narrow task, state, or operating regime. Use persistent-trajectory design, state transitions, targeted recordings, or perturbation contrasts that make the surviving alternatives diverge. More samples from the same narrow regime or passive observation alone when the alternatives remain co-linear.
Model-family / omitted-mechanism ambiguity An approximate model fits the current slice, but complementary conditions reveal systematic residuals or missing mechanisms. Run a model-discrepancy stress test, compare a hierarchy of richer / alternative models, and require a held-out falsification route. Narrower intervals inside one misspecified family or a single headline fit improvement.
Task-variable interaction / representation ambiguity A latent factor or reduced model predicts data correlations while missing the causal interaction structure that drives behavior. Preserve or perturb the interaction among task variables, and predeclare the intervention-side predictions that competing representations make. Correlation-only dimensionality reduction, generic multimodal fusion, or post hoc interpretability language alone.

If the apparent ambiguity mainly comes from shared modality drivers or physiology-linked common factors rather than inverse/model structure, this site routes the claim to the Fusion Card instead of treating concatenation as an identifiability win.

Experiment-design leverage must explain why the protocol is informative

2026-03-28 addendum: informative protocol must target identifiability, stress model mismatch, and declare minimum sufficiency

The remaining weakness after adding an experiment-design leverage row was that authors could still write generic words such as multimodal, naturalistic, or closed-loop without stating why the chosen protocol should actually separate the surviving alternatives, which design objective selected it, or whether the new condition merely exposed model mismatch. The primary literature does not support that shortcut. Diop & Fliess (1991) made explicit that observability / identifiability depend on persistent trajectories rather than on outputs in the abstract, and Raue et al. (2010) showed that identifiability / observability analysis can be used iteratively to design new experiments rather than only criticize old ones. Chis et al. (2016) then showed that sloppiness is not identifiability and that experiment design should optimize explicit identifiability criteria rather than proxy notions of being merely less sloppy. White et al. (2016) showed that complementary experiments can make previously omitted mechanisms relevant, so a design can tighten nominal parameter uncertainty while simultaneously creating large model discrepancy. In neuroscience, Beiran & Litwin-Kumar (2025) showed that recordings from a small targeted subset of neurons can remove degeneracy in connectome-constrained networks and even prioritize which neurons should be recorded next, while Langdon & Engel (2025) showed that preserving causal interactions among task variables can recover behaviorally relevant computations that correlation-only reductions miss. Gevertz & Kareva (2024) further showed that identifiability analysis can be used to derive a minimally sufficient measurement schedule, and Liu et al. (2025) showed that active learning can reach practical identifiability with markedly fewer observations. Therefore, this site now requires experiment-design leverage to explain not only what extra protocol element was added, but also which identifiability objective selected it, how omitted-mechanism stress was checked, and what minimum-sufficiency criterion stopped further data collection.

Experiment-design field Minimum disclosure What this site stops claiming if absent
Named ambiguity State which surviving states, parameters, controllers, or model families remain confusable after the current fit, and which one the next protocol step is trying to separate. “We added another task or modality” is not read as targeted evidence.
Design objective State whether the next condition was chosen to optimize practical identifiability, model discrimination, posterior contraction, profile-likelihood width, or another declared criterion, and say explicitly if the choice was driven only by convenience, prediction score, or a sloppiness proxy. A richer protocol is not read as informative merely because a generic optimization score improved.
Persistent trajectory / regime coverage Name the stimulus range, task phases, initial conditions, state transitions, targeted recordings, or perturbation timing chosen to excite hidden modes that were previously silent, co-linear, or weakly constrained, and say why this panel is expected to rotate or separate the competing solutions rather than merely resample one narrow regime. More samples from one narrow regime are not read as improved identifiability.
Perturbation contrast State which intervention, exogenous drive, or operating-point change should make the surviving alternatives diverge, and what opposite or quantitatively different predictions were predeclared. An intervention is not read as discriminative merely because it was delivered.
Model-discrepancy stress test Report whether the new condition exposed systematic residuals, failed fits, or previously omitted mechanisms, what hierarchy of richer or alternative models was checked, and whether the protocol was revised after that stress test. Tighter nominal parameter estimates are not read as trustworthy if the added condition only forced hidden model error into view.
Adaptive / sequential policy State whether later trials, stimuli, or measurement windows were chosen adaptively from interim posterior / profile information or fixed in advance, and name the information criterion or heuristic used. “Active learning” is not read as achieved or reproducible by label alone.
Minimum-sufficiency stop rule and residual overlap Predefine the smallest condition/time-point/recording set required to raise the claim, the uncertainty, profile-overlap, or held-out-falsification threshold used to stop, and report how much candidate overlap remained once that minimum design was reached. Extra data collection is not read as solved degeneracy if the submission never shows what was minimally sufficient or how much overlap still remained.
Minimum operating rule

If this card is missing, this site stops at predictive fit, localized source hypothesis, or model-conditioned mechanism. It does not promote the result to unique internal-state recovery, state-complete reconstruction, or mechanism uniquely identified language.

Fusion Card for multimodal or atlas-prior results

2026-03-20 addendum: multimodal and atlas-prior results need a Fusion Card

The remaining weakness after adding the Observability Budget was that the words simultaneous, multimodal, or atlas-informed could still be overread as if the fusion step itself had already been validated. The primary literature does not support that shortcut. Kothe et al. (2025) showed that synchronization middleware can align streams, but does not by itself certify device-side delay truth or biological equivalence. Wei et al. (2020) showed that EEG-fMRI fusion remains a model-conditioned inference problem. Nguyen et al. (2016) then made the temporal limit explicit: even in spatiotemporally constrained EEG-fMRI source imaging, the temporal mismatch between EEG and fMRI still persists. Ripp et al. (2021) showed the same issue on the PET side by treating simultaneous FDG-PET/fMRI working-memory data as scan-window averages, reconstructing PET baseline from 44-60 min and task uptake from 63-71 min post-injection under an assumed steady state. Vafaii et al. (2024) and Chen et al. (2025) then showed that even simultaneous multimodal acquisition can reveal both convergent and divergent structure across modalities rather than one self-validating ground truth. Bolt et al. (2025) and Özbay et al. (2019) further showed that low-frequency/global fMRI-linked components can carry autonomic physiology, so a shared factor is still not automatic target-variable specificity. A second operational limit is that a bundle gain is not automatically robust: Rohaut et al. (2024) showed that adding modalities can reduce uncertainty and improve prognostic accuracy in acute brain injury, but Amiri et al. (2023) showed that direct same-sample multimodal comparison can shrink to a 48-patient complete-feature subset, and Manasova et al. (2026) showed that missing-modality handling, centre transfer, and inter-modality disagreement remain active bundle-level issues. Therefore, this site now asks multimodal or atlas-prior claims to attach a Fusion Card on top of the Observability Budget.

Fusion Card field Minimum disclosure What this site stops claiming if absent
Acquisition relation Name whether the evidence is same-subject, same-session, same-perturbation, cross-day, atlas-prior only, or post hoc cross-cohort fusion, and specify which stacks were actually acquired together. The result is not read as same-subject cross-stack evidence and stays at the strongest directly supported single-stack or atlas-conditioned ceiling.
Clock / lag audit Name the synchronization route such as LSL / TTL / photodiode / trigger lines, unresolved hardware delay and jitter, and whether timing was audited only between streams or also against device-side ground truth. The result is not read as temporally aligned latent-state evidence just because the streams share timestamps.
Effective-window / temporal-kernel relation Name what temporal object each stack contributes, such as event-locked electrophysiology, hemodynamic response window, scan-window average, or minutes-long kinetic route, and state whether the claim concerns one matched state sample, one shared transition, or only coordinated multi-timescale dynamics. Same-session acquisition is not read as one synchronous latent-state sample when the stacks still average over different temporal windows or kernels.
Geometry / registration scope Name subject-specific MRI / head model / atlas use, parceling or voxel alignment, whether co-registration is same-brain or atlas-to-subject, and which spatial mismatch remains unresolved. The result is not read as if the modalities were already in one common anatomical state space.
Fusion object and model burden State whether fusion used Bayesian model comparison, atlas priors, joint embeddings, canonical correlation, graph fusion, or only side-by-side interpretation, separate direct observables from inferred latent variables for each stack, and, for hemodynamic stacks, disclose whether the hemodynamic contribution stayed at uncalibrated amplitude, moved to transfer-side calibration, or invoked a named OEF / CMRO2 quantity bridge. The result is not promoted from multimodal correlation or prior-conditioned estimation to direct state identification.
Shared-vs-specific component disclosure Name whether the claimed effect lives in a shared cross-modal component, a modality-specific residual, or a physiology-linked/global factor; specify the decomposition or comparison logic used, and say what mismatch remains unresolved after fusion. The result is not read as one shared biological state variable just because a common factor or coupled trajectory was reported.
Incremental evidence over unimodal / prior-only baselines Report what improves relative to each unimodal stack alone and to the atlas- or prior-only baseline under the same task/state split and matched availability slice, including whether the gain is spatial, temporal, predictive, or calibration-only. The fusion step is not treated as self-justifying progress.
Availability / complete-case slice Name how many samples actually carried every modality used by the fused claim, which subset the direct bundle comparison used, and how missing modalities were excluded, imputed, or routed through fallback models. The result is not read as acquisition-complete bundle evidence just because several modalities appear somewhere in the paper.
Transfer / disagreement window Name whether the fusion rule was tested only within one centre / protocol or also across centres, scanners, or acquisition-parameter shifts, and say whether modality disagreement concentrates in hard subgroups, outcomes, or nuisance regimes. The result is not promoted from within-dataset bundle gain to robust multimodal evidence across sites or hard regimes.
External calibration and abstention Name whether validation came from stimulation, simultaneous invasive recording, same-brain co-registration, phantom/simulation, postsurgical outcome, or none, and specify where the claim ceiling and abstention boundary begin. The result is not read as externally validated cross-stack state recovery.
Same session is not yet the same temporal object

Even when several streams are acquired together, this site still asks what each stream means in time. Nguyen et al. (2016) explicitly noted that temporal mismatch persists in EEG-fMRI source imaging, and Ripp et al. (2021) showed that simultaneous FDG-PET/fMRI task data still rely on PET windows spanning many minutes rather than event-scale timing. Chen et al. (2025) then made the multi-timescale point concrete in simultaneous EEG-PET-MRI across wakefulness and NREM sleep. Therefore, same-session wording is not enough on this site unless the Fusion Card states whether the paper is aligning one instantaneous state sample, one shared transition, or only coordinated dynamics across different temporal kernels.

Minimum operating rule

If this card is missing, this site reads a multimodal or atlas-prior result at the ceiling of the strongest individually supported stack, not as same-subject, cross-stack, externally calibrated state identification. An atlas prior plus one live measurement remains an atlas-conditioned measurement, not automatic state completeness. A synchronized common factor without shared-vs-specific disclosure remains fused evidence, not one solved biological state variable. A same-session bundle without an explicit effective-window / temporal-kernel relation remains synchronized multi-timescale evidence, not one matched temporal object. A gain shown only on a narrow complete-feature subset, after unresolved missing-modality imputation, or without a disclosed transfer window remains bounded bundle-performance evidence, not robust multimodal state evidence.

Human Proxy Composition Card for living-human multi-stack claims

2026-03-21 addendum: proxy-rich human evidence must be composed explicitly, not rhetorically

After adding the Observability Budget and the Fusion Card, one weak point still remained: several living-human proxy rows could still be listed side by side as if coverage automatically added up. The primary literature does not support that shortcut. Johansen et al. (2024) provide a 33-participant SV2A atlas calibrated to autoradiography, which is a cohort-level synaptic-density proxy. Lucchetti et al. (2025) define a five-metabolite within-subject similarity graph in 51 healthy adolescents with 13-person site replication, not kinetic flux imaging. Ren et al. (2015) provide a resting 31P metabolite / pH route, Ren et al. (2017) provide a 7 T MT exchange-flux route, Guo et al. (2024) provide a whole-brain intracellular NAD map, and Kaiser et al. (2026) provide a task-evoked 31P fMRS NAD+ route; those are already four different inferential objects before the deuterium rows are added. Li et al. (2025) then provide 7 T dynamic DMRSI kinetic maps in five healthy participants. Baadsvik et al. (2024) provide myelin-bilayer mapping in two healthy volunteers on specialized hardware. Hirschler et al. (2025) provide a specialized 7 T CSF-mobility route whose whole-brain rest maps were shown in 20 healthy younger individuals, with driver analyses reported in 11 of 24 total healthy participants. Dagum et al. (2026) infer sleep-linked glymphatic clearance through older-adult crossover cohorts, an investigational wearable, and a compartmental model. These routes differ in direct observable, quantity type, time window, spatial unit, model burden, deployment maturity, and even the likely nuisance sources that can make rows move together. Vafaii et al. (2024) showed both common and divergent organization across simultaneous Ca2+ and BOLD, Chen et al. (2025) showed tightly coupled global progressions alongside two distinct network patterns in simultaneous EEG-PET-MRI, Bolt et al. (2025) showed that a major global fMRI mode is substantially coupled to autonomic physiology, and Epp et al. (2025) showed that significant task BOLD changes can coexist with opposite oxygen-metabolism changes across many cortical voxels. Therefore, this site now requires a Human Proxy Composition Card whenever multiple living-human proxy rows are used together to raise a claim ceiling.

A second correction follows from robustness rather than taxonomy alone. Finnema et al. (2018) showed that even a comparatively stable SV2A PET route still needed route-specific kinetic modeling and yielded mean absolute test-retest reproducibility of 3-9% for regional VT. Holiga et al. (2018) showed that common task-fMRI and resting-fMRI measures span poor to excellent test-retest reliability rather than one uniform level. Wirsich et al. (2021) then showed that some simultaneous EEG-fMRI connectome relationships can reproduce across four centres, 1.5T to 7T, and different EEG layouts, which means cross-centre robustness can be demonstrated but should not be assumed. Amiri et al. (2023) further showed in acute DoC that only 63 of 87 patients had both EEG and fMRI, while direct same-sample model comparison used 48 complete-feature patients, so full bundles are not automatically acquisition-complete. Manasova et al. (2026) validated multimodal models across centres with different acquisition parameters, reported that performance improved with more modalities, and found higher inter-modality disagreement in minimally conscious or improving patients. Therefore, on this site, per-row repeatability, cross-centre transfer, and partial-bundle availability are part of composition rather than afterthoughts.

A third correction is now required inside named proxy families as well. Naganawa et al. (2021) constrain the SV2A quantification route, Johansen et al. (2024) constrain a healthy-human atlas / baseline route, Snellman et al. (2024) constrain a disease / risk-contrast route, Shatalina et al. (2024) constrain a task / cognition association route, Smart et al. (2021) constrain an activation-null timescale boundary, and Holmes et al. (2022) constrain an intervention-response null at 24 h. Therefore, this site no longer accepts SV2A PET as one reusable bundle row. The composition card now has to type the family-internal comparison family before any shared bundle role is inferred.

A fourth correction concerns evidence role rather than quantity type alone. Johansen et al. (2024) is a healthy atlas / cohort-prior route, Snellman et al. (2024) is a cross-sectional risk-contrast route, Finnema et al. (2018) is a same-subject baseline / repeatability route, Smart et al. (2021) is a within-subject activation-change boundary, and Holmes et al. (2022) is a 24 h intervention-response boundary. Those do not define one interchangeable bundle role. Therefore, this site now asks the card to state whether each row is being used as a normative atlas / cohort prior, a cross-sectional contrast, a same-subject baseline readout, a within-subject change witness, or a perturbation-response witness, together with the route and time window that actually justify that role.

The same rule now also applies to human myelin MRI. Arshad et al. (2017) constrain an MWF versus calibrated T1w/T2w comparison route, Hagiwara et al. (2018) constrain a relaxometry / MTsat comparison route, Baadsvik et al. (2024) constrain a bilayer-sensitive mapping route, Galbusera et al. (2025) constrain a qT1 remyelination-sensitive pathology route, and Colaes et al. (2026) constrain a T1w/FLAIR tissue-health-sensitive ratio route whose safe reading is broader than myelin-specific contrast. Therefore, this site no longer accepts myelin MRI as one reusable bundle row either. The composition card has to type whether the row is an MWF / calibrated T1w:T2w comparison, a relaxometry / MTsat comparison, a bilayer-sensitive mapping route, a qT1 remyelination-sensitive pathology route, or a T1w/FLAIR tissue-health-sensitive ratio before any shared bundle role is inferred.

The same rule now also applies to human clearance-transport evidence. Fultz et al. (2019) constrain a macroscopic CSF-oscillation route, Kim, Huang, & Liu (2025) constrain a parenchyma-CSF water-exchange route, Lim et al. (2025) constrain a respiration-conditioned net-flow route, Yoo et al. (2025) constrain an exercise-conditioned contrast-influx / parasagittal meningeal-lymphatic route, Eide et al. (2023) constrain an intrathecal-tracer / CSF-to-blood clearance-capacity route, Hirschler et al. (2025) constrain a CSF-mobility route, and Dagum et al. (2026) constrain a model-based biomarker-efflux route. Therefore, this site no longer accepts clearance / immune support as one reusable bundle row either. The composition card has to type whether the row is macroscopic CSF oscillation, parenchyma-CSF water exchange, respiration-conditioned net-flow, exercise-conditioned contrast influx, intrathecal tracer / CSF-to-blood clearance, CSF mobility, or model-based biomarker efflux before any shared bundle role is inferred.

The same rule now also applies to human target-defined neuroimmune PET. Biechele et al. (2023) show that TSPO is not a species-invariant human activation-state meter, Wijesinghe et al. (2025) constrain a TSPO disease-context / validation-bounded route in PSP, Horti et al. (2022) and Ogata et al. (2025) constrain CSF1R route-setting PET under explicit arterial-input modeling, and Yan et al. (2025) constrain an enzyme-defined COX-2 route with celecoxib blockade and named quantification choices. Therefore, this site no longer accepts immune PET as one reusable bundle row either. The composition card has to type whether the row is TSPO disease-context / validation-bounded, CSF1R route-setting, or COX-2 enzyme-defined before any shared bundle role is inferred.

A fourth correction concerns availability geometry rather than bundle size alone. Amiri et al. (2023) already showed that direct bundle comparison could shrink from 87 enrolled patients to a 48-patient complete-feature subset. Manasova et al. (2026) then made the geometry explicit in the main French dataset: EEG-LG was available in 290 patients, dMRI in 151, aMRI in 101, FDG-PET in 53, and fMRI-RS in only 44, while disagreement rose in MCS and improved groups. Therefore, on this site, a bundle must disclose not only the complete-case count but also the row-overlap geometry and whether missingness itself tracks site, severity, tolerance, contraindication, or protocol. Otherwise, an apparent multimodal gain can still be driven by a changing patient subset rather than by tighter same-subject state constraint.

2026-03-26 tightening: promotion now runs through three gates

A fifth correction concerns discordance topology rather than mean gain alone. Rohaut et al. (2024) showed that multimodal assessment can reduce uncertainty and improve prognostic accuracy overall, while also warning that multimodal approaches increase the odds of discrepancies across markers that can produce choice paralysis or biased decisions. Manasova et al. (2026) then showed that pairwise disagreements across modalities were higher in MCS patients and in those who later improved. Therefore, on this site, a bundle must disclose not only whether the average score improved, but also where disagreement concentrates and how discordant cases are handled.

For fast reading, this card now compresses to three promotion gates. First, the bundle must pass a robustness gate: row-level repeatability at the actual operating point, cross-centre / cross-protocol transfer where claimed, and disclosure of the real complete-case slice plus row-overlap geometry and missingness mechanism. Second, it must pass a common-driver / quantity-bridge gate: same-session agreement is not enough unless the paper shows that the rows refer to compatible effective time windows / state axes and physiological or perturbation regimes, survive shared-driver audit, and can be read on an explicitly named biological axis. Third, it must pass an increment gate: the paper must show what the bundle adds beyond the strongest single row under a matched reading rule, and also where the remaining disagreements concentrate plus whether discordant cases were abstained, adjudicated, or silently absorbed into one final score. Without all three, this site keeps the result at the strongest single-row or proxy-rich ceiling.

Human Proxy Composition Card field Minimum disclosure What this site stops claiming if absent
Claimed latent variable family Name the exact hidden-state family or maintenance-state bundle the combined rows are supposed to constrain, and specify the spatial unit and timescale of that claim. A proxy bundle is not read as if it had already become one coherent state object.
Proxy-row inventory and direct observables For each row, name the stack, direct observable, spatial unit, time window, and whether the row is a structural scaffold, regional density proxy, macro biochemical / energetic / ionic / thermal / myelin / support proxy, or perturbation-conditioned proxy. If one family label hides several comparison types, also name the family-internal comparison family; for example, SV2A PET must be typed as quantification route, healthy atlas / baseline, disease / risk contrast, task / cognition association, activation-null, or intervention-response rather than just `SV2A PET`; myelin MRI must be typed as MWF / calibrated T1w:T2w comparison, relaxometry / MTsat comparison, bilayer-sensitive mapping, qT1 remyelination-sensitive pathology, or T1w/FLAIR tissue-health-sensitive ratio rather than just `myelin MRI`; clearance evidence must be typed as macroscopic CSF oscillation, parenchyma-CSF water exchange, respiration-conditioned net-flow, exercise-conditioned contrast influx, intrathecal tracer / CSF-to-blood clearance, CSF mobility, or model-based biomarker efflux rather than just `clearance proxy`; and neuroimmune PET must be typed as TSPO disease-context / validation-bounded, CSF1R route-setting, or COX-2 enzyme-defined rather than just `immune PET`. Several rows are not allowed to collapse into the vague statement that “human evidence exists.”
Quantity-type / common-axis compatibility State whether each row is a density, occupancy, rate, similarity, mobility, support-state, or perturbation-sensitivity measure; then name the explicit calibration, model, or bridge that licenses reading those rows on one shared biological axis, or say that no such common axis was established. Several rows are not promoted to one validated latent coordinate or the same biological quantity.
Evidence relation across rows State whether the rows come from the same subject, same session, same perturbation, same day, cross-day, atlas prior, or post hoc cross-cohort juxtaposition, and say explicitly which rows were never acquired together. The bundle is not promoted to same-subject or same-state evidence.
Evidence role / allowed decision axis For each row, state whether it is being used as a normative atlas / cohort prior, a cross-sectional contrast, a same-subject baseline readout, a within-subject change witness, or a perturbation-response witness, and say which route, time window, or repeatability / intervention design actually established that role. A healthy atlas is not promoted to same-subject change evidence, and a bounded change or perturbation result is not promoted to a generic state meter or chronic tracker.
Effective time window / state-axis compatibility For each row, name whether the measurement is a structural snapshot, scan-window average, resting balance, task-evoked block or event response, minutes-long kinetic route, overnight transition, or longer aggregate, and state whether the bundle claims one shared state axis across those windows or leaves them explicitly unmatched. Rows with different temporal objects are not promoted to one current or synchronous latent-state sample by default.
Physiological / perturbation regime compatibility State the regime of each row, such as rest, task, sleep stage, sleep deprivation, pharmacological challenge, disease severity slice, or recovery window, and say whether rows were actually matched, intentionally shifted, or only bridged post hoc. Same-subject or same-session wording is not promoted to same-regime evidence when the physiological context differs across rows.
Measurement-model and acquisition burden Name the tracer / kinetic model / blood-input route, field strength, specialized hardware, scan burden, correction model, or compartment model that each row depends on, plus any small-cohort or proof-of-principle limitation. A specialized or model-heavy route is not read as field-ready generic observability.
Per-row repeatability / reproducibility window For each row, report same-subject repeatability or test-retest error / ICC / stability window under the actual acquisition and quantification route, distinguish route-local repeatability from cross-site portability, and say explicitly when no repeatability study exists. An unstable row is not treated as a reliable anchor inside a stronger bundle.
Cross-center / cross-scanner / protocol transfer State whether the row or bundle was reproduced across centres, scanners, field strengths, electrode montages, site protocols, or reconstruction pipelines, and whether the result survives harmonization rather than one local setup only. A same-lab bundle is not promoted to portable or field-ready human observability.
Acquisition completeness / missing-row slice Report how many subjects actually had every row, what same-sample subset underlies the full bundle, and what happens when one row is absent, degraded, or unavailable under realistic acquisition constraints. A full bundle is not treated as generally available or robust if its claim depends on a narrow complete-case subset.
Row-overlap geometry / missingness mechanism Report the pairwise or higher-order overlap structure across rows, whether row availability depends on site, severity, tolerance, contraindication, or protocol, and whether missing values were dropped, imputed, indicator-coded, or combined through a stacked policy. A bundle is not treated as if every row constrained the same subjects or as if its gains were insensitive to who is missing.
Cross-row nuisance / independence audit State whether the apparent agreement across rows could still be explained by shared arousal / autonomic / vascular / motion / device-side factors; report any shared-vs-specific decomposition, nuisance calibration, matched-perturbation control, or explicit absence of such tests. Several rows are not read as independent evidence about one target variable.
Agreement / disagreement topology and resolution policy Report pairwise or higher-order agreement / disagreement patterns across rows, especially in clinically or biologically important subgroups, and state whether discordant cases trigger abstention, human adjudication, extra acquisition, or are simply absorbed into a final stacked / imputed score. A bundle is not treated as one coherent state constraint or robust same-subject evidence in the very subgroups where modalities disagree most.
Increment over the strongest single row Report, under matched cohort / condition or held-out evaluation when available, what the bundle adds beyond the strongest individual row under the same reading rule: reduced latent-state family, narrower ceiling, better calibration, better prediction, or none. Listing multiple rows is not treated as self-justifying progress.
Cross-row calibration / bridge Name any same-brain co-registration, invasive calibration, perturbation bridge, pharmacological challenge, or external dataset that justifies reading the rows as evidence about one shared biological variable, and say when no such bridge exists. The bundle is not promoted to one externally calibrated cross-stack state measurement.
Residual latent state and abstention List which hidden-state families still remain latent after composition, and state the exact claim ceiling that remains in force. The bundle is not promoted from proxy-rich human evidence to state-complete or maintenance-complete language.
Atlas is not yet a change tracker

On this site, role-typing is not optional shorthand. Johansen et al. (2024) is a healthy atlas, Snellman et al. (2024) is a cross-sectional risk contrast, Finnema et al. (2018) is a route-local repeatability anchor, Smart et al. (2021) is a within-subject activation-null boundary, and Holmes et al. (2022) is a 24 h intervention-response boundary. Those papers matter, but they do not license one interchangeable synaptic-density bundle role.

Same-session correlation is not yet same quantity

Even if several rows were acquired together, the card still asks whether they measure the same thing on the same temporal object and in the same regime. A bundle that mixes SV2A density, metabolic similarity, kinetic glucose-rate imaging, CSF mobility, and clearance-efflux modeling does not yet define one common state axis by default, and Epp et al. (2025) showed that even hemodynamic and oxygen-metabolism rows can move in opposite directions. Therefore, same-session alignment or positive correlation is not enough on this site unless the paper discloses the quantity bridge, the effective time-window relation, and the regime compatibility explicitly.

Minimum operating rule

If this card is missing, this site reads a living-human proxy bundle at the ceiling of the strongest individually supported row, or at most as proxy-rich but ceiling-limited human evidence. It is not promoted to same-subject, cross-stack, externally calibrated state identification.

Promotion rule beyond row diversity

On this site, row diversity alone is not enough. A bundle is promoted only when the paper discloses whether the apparent agreement survives a shared-driver audit, where the key rows still disagree and how those discordant cases were handled, whether the key rows remain repeatable and transferable outside one setup, and what the bundle adds beyond the strongest single row under a matched-condition reading. In short, the bundle must pass robustness, common-driver / quantity-bridge, and increment gates. Otherwise, the result remains proxy-rich but ceiling-limited rather than same-subject state identification.

State-Continuity Bridge Card for sequential cross-regime claims

2026-03-21 addendum: same-subject is not enough when the bridge itself is sequential

After adding the Fusion Card, the Human Proxy Composition Card, and the Destructive-Structure Route Card, one weak point still remained: a result could still be described as same-subject or same-brain even when the claim depended on bridging across live measurement, later fixation, ex vivo follow-up, or cross-day reacquisition as if those stages sampled one latent state. The primary literature does not support that shortcut. Lu et al. (2023) showed that preservation route and fixation time course alter extracellular-space retention and geometry. Bosch et al. (2022) showed that bridging in vivo two-photon physiology to synchrotron microtomography and serial block-face EM requires a multistage landmark-based correlative workflow. MICrONS Consortium et al. (2025) showed that same-brain function plus EM remains a sequential local pipeline, not simultaneous whole-state capture. Attardo et al. (2015) further showed that adult CA1 spine lifetimes are on the order of 1-2 weeks, so relaxed bridge windows cannot be treated as silent continuity. Therefore, this site now requires a State-Continuity Bridge Card whenever a claim depends on treating measurements from different acquisition regimes as one latent-state sample.

State-Continuity Bridge Card field Minimum disclosure What this site stops claiming if absent
Bridge target and acquisition order Name which stacks were linked, in which order, and which claim depends on that bridge: for example live imaging -> fixation -> ex vivo EM, same-day live stack A -> live stack B, or cross-day reacquisition. A multi-stage workflow is not read as one state object by default.
Carried object / bridge witness and tolerance rule Name the object expected to survive the bridge, such as landmarks, targeted subvolumes, local response templates, latent manifolds, representational geometry, or a fingerprint feature family; say how it is measured on both sides, what tolerance defines success, and what negative control or failure test would have broken the bridge. Same-subject is not read as if one unspecified state object had automatically been carried across stages.
Elapsed time and state window Report the delay between acquisitions or between live physiology and fixation, whether the bridge stayed within one trial / session / day / sleep cycle or crossed days, and which hidden-state families could drift over that interval. Same-subject is not read as same-time or same-state.
Physiological / perturbation regime continuity Name whether task, arousal, anesthesia, deprivation, pharmacology, and behavioral context were matched, intentionally shifted, or left unmatched across the bridge. A bridge is not read as if calibration transfers automatically across state regimes.
Coordinate transfer and deformation model Name fiducials, vascular landmarks, subject-specific MRI, warping or shrinkage correction, manual versus automated matching, and which spatial mismatch remains unresolved. Same-brain is not read as cell-precise or deformation-free correspondence.
Bridge validation rung Name what validates the bridge itself: repeated live measurement, vascular / cellular landmark recovery, stimulation-site correspondence, histology recovery, or no external validation. The bridge is not promoted to externally validated same-state evidence.
Residual drift, omitted state families, and ceiling List which latent-state families could still change across the bridge, including synaptic efficacy, excitability, neuromodulatory context, support-state, and structural turnover where relevant, then declare the remaining claim ceiling and abstention boundary. The result is not promoted to same-state cross-regime reconstruction, maintenance-consistent language, or state-complete readout.
2026-03-28 addendum: the bridge must declare what is supposed to survive

The remaining weakness after adding bridge class and hidden-state-family disclosure was that a submission could still leave the carried object implicit. The primary literature does not support that shortcut. Bosch et al. (2022) and MICrONS Consortium et al. (2025) show local landmark and correspondence objects rather than one global state object. Gallego et al. (2020), Roth & Merriam (2023), Noda et al. (2025), Van De Ville et al. (2021), and Di et al. (2021) show that different population-level objects can remain stable even while raw units, amplitudes, or feature families change. Karpowicz et al. (2025), Wilson et al. (2025), and Wairagkar et al. (2025) further show that stable use across time can depend on alignment, recalibration, or a short fixed-decoder window. Therefore, this card now asks not only when the bridge happened, but also what object is claimed to have survived it and how failure would have been detected.

2026-03-25 addendum: bridge type and exposed state families must be named together

The remaining weakness was that the card could still be filled as if bridge risk were one generic scalar. The primary literature does not support that shortcut. Lu et al. (2023) and Idziak et al. (2023) show transformation-dominated live-to-fix risk, Bosch et al. (2022) and MICrONS Consortium et al. (2025) show landmark- and deformation-heavy local same-brain bridges, Musall et al. (2019), Benisty et al. (2024), and Egger et al. (2024) show waking-state drift within hours, and Hengen et al. (2016) plus Xu et al. (2024) show that sleep/wake crossing changes homeostatic and computational regime. Therefore, bridge submissions on this site now have to name both the bridge class and the first exposed hidden-state families, rather than writing only elapsed time.

Bridge class State families to disclose first Minimum extra cards this site stacks Default ceiling if that bundle is missing
Live -> fixation -> ex vivo / EM Preservation-sensitive geometry, omitted live physiology, and the claimed carried-over state family. Destructive-Structure Route Card Sequential local scaffold, not native same-state capture.
Same-day repeated live measurement Behavior / arousal / neuromodulatory context, functional-coupling drift, and decoder dependence. Temporal Validity Card Matched-session continuity only, not same-state persistence.
Sleep-crossing or overnight reacquisition Firing-rate set point, sleep-dependent renormalization, replay-coupling, and any cited support-state family. Temporal Validity Card plus Maintenance-State Error Budget Overnight performance / persistence evidence, not maintenance-consistent same-state evidence.
Multi-day same-subject proxy bundle Maintenance-state families named by the bundle, structural turnover risk, and cross-row quantity mismatch. Human Proxy Composition Card plus Maintenance-State Error Budget Proxy-rich longitudinal evidence, not one latent-state snapshot.
Minimum operating rule

If this card is missing, this site reads a sequential cross-regime result at the ceiling of the strongest directly supported live or destructive stage plus, at most, an unvalidated bridge hypothesis. It is not promoted to same-state, same-time, or maintenance-consistent evidence.

Need the longer bridge critique?

For the background logic behind preservation change, cross-day regime mismatch, bridge-validation rungs, and card stacking, see Wiki: State-Continuity Bridge.

Destructive-Structure Route Card for ultrastructure claims

2026-03-20 addendum: destructive ultrastructure routes need their own card

The remaining weakness after the Observability Budget and Fusion Card was that words such as nanoscale, petascale, or same-brain could still be overread as if the destructive route had already preserved native state, solved scaling, and certified reconstruction quality in one move. The primary literature does not support that shortcut. Lu et al. (2023) showed that conventional aldehyde fixation collapses extracellular space, that fixation itself has a non-negligible time course, and that even high-pressure freezing preserves extracellular space only in samples thinner than about 200 μm. Shapson-Coe et al. (2024) then showed that extraordinary human ultrastructure can now be reconstructed, but still from a rapidly preserved 1.05 mm3 surgical fragment with 1.8 PB raw data and 326 days of imaging. MICrONS Consortium et al. (2025) showed that same-brain function plus EM is a sequential local pipeline, with in vivo two-photon imaging first and fixation / sectioning / ex vivo EM afterward, producing about 2 Pb of raw data over about 6 months. Dorkenwald et al. (2024) further showed that even the adult-fly whole-brain frontier still depended on proofreading, thresholding, and about 33 person-years of manual correction. Therefore, this site now asks destructive ultrastructure claims to attach a Destructive-Structure Route Card instead of letting resolution language silently stand in for native-state completeness.

Destructive-Structure Card field Minimum disclosure What this site stops claiming if absent
Preservation route and live-to-fix window Name immersion / perfusion / cryo route, the interval from live physiology or resection to fixation/freezing, whether extracellular-space preservation was audited, and any osmotic / staining manipulations that materially shape ultrastructure. The result is not read as if native geometry or microenvironment were automatically preserved by the word EM or nanoscale.
Sample origin and physiological regime Name species, brain region, whether the tissue was ex vivo surgical, acute slice, perfusion-fixed animal, or same-brain postmortem follow-up to in vivo recording, and what behavioural / state regime was actually sampled before fixation. A local or pathology-bounded fragment is not promoted to a generic living-brain state claim.
Registration scope to live data Name whether registration is none, atlas-level, same-brain structural, same-brain functional, or same-perturbation; state which correspondences were manual versus automated and which mismatch remains unresolved. Same-brain is not read as same-time whole-state capture.
Sectioning / imaging scale and loss audit Report imaged volume, section count, voxel size, acquisition time, section loss / folds / cracks, whether multiple subvolumes had to be stitched, and where tissue was omitted or alignment deemed insufficient. A petascale stack is not read as operationally complete or whole-brain-ready by default.
Segmentation / proofreading status Name automated segmentation family, merge / split trade-offs, proofreading scope, released versions, attachment / completeness metrics when available, and which analyses depend on thresholds or proofread subsets. A polished reconstruction is not read as error-free ground truth.
Omitted live-state families and ceiling Explicitly list which current-state families remain absent, including current synaptic efficacy, neuromodulatory context, ionic milieu, glial / metabolic support, phospho-signaling, and other maintenance-state variables; then declare the claim ceiling and abstention boundary. The result is not promoted from structural scaffold or local ex vivo scaffold to native-state capture, maintenance-consistent readout, or sufficient-condition language for WBE.
2026-03-18 addendum: ESI validation is a ladder, not one checkbox

This site no longer accepts the phrase external validation without naming the validation class. Simulation / phantom audits solver behavior under known generative conditions, intracranial stimulation audits localization error to a known site and time (Mikulan et al., 2020; Unnwongse et al., 2023), simultaneous invasive recording audits concordance under the same event (Hao et al., 2025), and postsurgical outcome audits clinical relevance rather than direct source ground truth (Birot et al., 2014). Passing one rung does not auto-pass the others.

Validation class What it constrains Ceiling if only this exists
Simulation / phantom Numerical stability, geometry sensitivity, and regression under known conditions. Method-behavior evidence, not living-brain ground truth.
Intracranial stimulation Localization error to a known site and time under fixed geometry. Strong calibration for source error, but not spontaneous-dynamics or universal deep-source guarantees.
Simultaneous invasive recording Concordance with concurrent SEEG/ECoG during the same event. Cohort- and pathology-bounded concordance, not unique recovery of internal state.
Postsurgical outcome Clinical relevance to resection or seizure-onset-zone workflow. Decision-support evidence, not source ground truth.
2026-03-19 addendum: ESI claims need a solver-disagreement audit

The remaining weakness was to let one inverse solution stand in for the whole solution set. Mahjoory et al. (2017) showed that inverse-method and software-package choice induces considerable variability and explicitly recommended verifying EEG source findings with more than one source-imaging procedure. Mikulan et al. (2020) then showed on intracranial-stimulation ground truth that only a small fraction of tested solutions reached the session-wise optimum, even though the benchmark was tightly controlled. Vorwerk et al. (2024) further showed that skull and skin conductivity uncertainty shifts reconstructed depth and location, especially for quasi-tangential sources. Therefore, when an anatomical source claim depends on one inverse family or one hand-picked parameter set, this site now asks for a solver-disagreement audit that reports compared solver families / packages, parameter window, and headline-location spread. If that is missing, the result stays at the method-sensitive source-hypothesis level rather than stable anatomical evidence.

2026-03-31 addendum: solver disagreement is not one generic number

The next weak point was to treat inverse-family disagreement as if every family were estimating one interchangeable source object. Current primary literature does not support that shortcut. Luria et al. (2024) expose posterior support and alternative configurations for focal-source hypotheses, Tong et al. (2025) expose debiased estimation and inference for sparse spatial-temporal sources, and Feng et al. (2025) expose empirical-Bayesian uncertainty for extended-source reconstruction. Therefore, the Inverse-Solver Agreement Log on this site now requires the source regime / target object and the uncertainty object to be named alongside the solver family. A disagreement between posterior-support maps, debiased intervals, and extent-overlap maps is not reduced to one winner by default.

2026-03-22 addendum: ESI claims need a field-formation audit

The remaining weakness was upstream of the inverse solver itself. A paper can report a cleaner map, a lower benchmark error, or better regularization and still leave unasked whether the targeted source class was expected to generate a usable scalp field in the first place. Ahlfors et al. (2010) showed with realistic tissue boundaries that source orientation matters far more for MEG than for EEG, with median lowest-to-highest sensitivity ratios of 0.06 for MEG and 0.63 for EEG. Ahlfors et al. (2010) and Goldenholz et al. (2009) showed that extended sources, cortical folding, and cancellation can materially reshape or suppress surface signals, while Piastra et al. (2021) showed that omitting the CSF compartment overestimates EEG SNR and changes cortical / subcortical sensitivity comparisons. Therefore, when a submission claims deep-source recovery or anatomical improvement from EEG/MEG, this site now asks for a field-formation audit before the inverse result is read strongly.

Field-formation audit field Minimum disclosure What this site stops claiming if absent
Target source class and expected extent Name the target generator family, its expected depth and orientation regime, whether the source is treated as focal or extended, and the synchrony / timescale assumed to make it visible. A success on one benchmark is not promoted to generic deep-source observability.
Geometry / cancellation sensitivity State whether cortical folding, opposing-bank cancellation, or source-extent effects were assessed for the target, and provide a sensitivity / SNR map or equivalent justification when anatomical visibility is central to the claim. A missing or weak scalp signal is not read as source absence, and a visible scalp pattern is not read as unique state recovery.
Head-model / tissue visibility assumptions Name the compartments and conductivity assumptions in the forward model, including whether CSF was modeled and whether uncertainty in skull / tissue parameters was tested. High-density or MRI-informed is not read as visibility-complete by default.
2026-03-18 addendum: hemodynamic modalities need a vascular-state / CVR audit

Hemodynamic stacks do not carry only neural uncertainty; they also carry a vascular transfer state, and newer work shows that transfer-audited amplitude and oxygen-metabolism routes are still different inferential objects. Murphy et al. (2011) showed that inter-subject CBF / CBV differences contribute to BOLD reactivity and that breath-hold-derived vascular-reactivity covariates improve group analyses. Williams et al. (2023) showed that task BOLD magnitude is strongly predicted by hypercapnia-based CVR across multiple cortical regions, Wu et al. (2023) showed that baseline CBF partly explains age-related components of multiple-demand-network BOLD responses, Yucel et al. (2015) and An et al. (2025) showed that short-channel regression remains necessary to reduce superficial autonomic confounds in fNIRS, Epp et al. (2025) showed that about 40% of voxels with significant task BOLD changes can show opposite oxygen-metabolism changes, and Jaroszynski et al. (2025) showed that constrained qBOLD reaches OEF / CMRO2 only through an explicit model stack with separate pCASL-based CBF input. Therefore, when a submission uses BOLD or fNIRS, this site now asks authors to disclose whether the claim lives at uncalibrated amplitude, transfer-side calibrated amplitude, or a model-conditioned oxygen-metabolism / quantity-bridge route; otherwise the result stays at a hemodynamic-limited difference rather than a neural or metabolic claim.

2026-03-22 addendum: tractography connectomes need a tractography route card

For diffusion-MRI-derived connectomes, the modality label alone is not enough. Reveley et al. (2015) showed that superficial white matter can block long-range tracking from roughly half of the cortical surface, Schilling et al. (2018) showed that tractography endpoints are biased toward gyral crowns across deterministic and probabilistic algorithms and even very high-resolution data, Sarwar et al. (2023) showed that filtering gains are modest in complex human-like architectures, He et al. (2024) showed that filtering can significantly shift laterality indices for more than 10% of connections, Gajwani et al. (2023) showed across 40 pipelines and 44 group-representative reconstructions that hub location is highly variable and hub connectivity correlates with regional surface area in 69% of assessed pipelines, McMaster et al. (2025) showed that voxel size changes the resulting connectome and recommended resampling to 1 mm isotropic for robust comparisons, Bramati et al. (2026) showed on the same 3 T scanner with uniform processing that common diffusion-sampling schemes can still shift voxel metrics and tractography outputs, Manzano-Patrón et al. (2025) made fibre-orientation uncertainty explicit rather than silent, and Zhu et al. (2025) improved tractography by fusing MRI with microscopy. Therefore, this site now asks any tractography-derived connectome claim to attach a tractography route card naming what was directly measured, how acquisition and harmonization were handled, how cortical endpoints were assigned, which priors, filtering, parcellation, and weighting choices shaped the graph, how uncertainty and protocol sensitivity were quantified, what external calibration exists, and where abstention begins. The longer public reading rule is summarized in Wiki: tractography route card.

Tractography route-card field Minimum disclosure What this site stops claiming if absent
Direct observables Write voxel size, shell / b-value scheme, direction count, orientation model, and state explicitly that the direct observable is diffusion signal / local fibre-orientation estimate. The streamline graph is not read as directly observed edges.
Acquisition / harmonization audit Name whether the comparison spans different scanners, resolutions, or q-space schemes; disclose any resampling / harmonization route; and say whether the headline result survives protocol variation or remains protocol-scoped. A connectome change is not read as anatomy if acquisition design may explain it.
Cortical endpoint / surface-bias audit Name the white-matter / gray-matter boundary or surface-assignment route, whether superficial-white-matter or gyral-bias checks were performed, and which cortical territory remained endpoint-limited. Cortical endpoint differences are not read as anatomical absence or edge specificity by default.
Priors and filtering Write seeding rule, deterministic / probabilistic mode, start / end / exclusion ROIs, atlas constraints, stopping rules, and filtering / weighting method. Prior-driven bundle recovery is not read as unbiased connectome discovery.
Graph construction choices Name the parcellation / surface atlas, edge definition and weighting, density or threshold rule, and whether the headline metric survives reasonable alternative graph constructions. Hub maps and graph metrics stay pipeline-conditioned rather than anatomical network organization.
Uncertainty and stability Report resolution sensitivity, q-space-scheme sensitivity, scan-rescan or ensemble stability, and posterior / bootstrap uncertainty for the headline graph metric. Reported connectome differences stay pipeline-conditioned rather than anatomical by default.
External calibration and ceiling Name any tracer / histology / microscopy / phantom route and declare the ceiling as macro pathway prior, targeted bundle hypothesis, or calibrated bundle comparison. The result is not promoted to edge-complete graph or WBE-ready connectome language.
2026-03-19 addendum: connectome-constrained predictors need a conditional-model route card

For connectome-constrained neural predictors, the label alone is also not enough. Lappalainen et al. (2024) showed that connectome structure plus task optimization can yield rich fly visual-system activity predictions, but the model still depended on partial motion-pathway reconstruction, simplified neuron/synapse dynamics, and an ensemble of multiple local optima. Shiu et al. (2024) showed that synapse-level connectivity plus neurotransmitter identity can predict specific fly sensorimotor circuits, while explicitly reading the result as a coarse description of named behaviours. Pospisil et al. (2024) used the connectome as a prior for perturbation-based effect estimation, but explicitly recovered a linear approximation to nonlinear dynamics. Finally, Beiran & Litwin-Kumar (2025) showed that even with the same synaptic weights, different biophysical parameters can still generate divergent recurrent dynamics. Therefore, this site now asks any connectome-constrained model claim to attach a conditional-model route card naming what structure was actually used, what remained fitted, which regime was tested, which mechanisms were omitted, how validation was done, and where abstention begins. The longer public reading rule is summarized in Wiki: conditional-model route card.

Conditional-model route-card field Minimum disclosure What this site stops claiming if absent
Structural prior and coverage Name whether the model used EM edges, synapse counts, neurotransmitter signs, same-brain recordings, tractography priors, atlas averages, periodic tiling, and the exact spatial/cell-type coverage. The result is not read as if the relevant circuit or state variables had been fully observed.
Fitted degrees of freedom List the still-learned quantities such as time constants, resting potentials, unitary synapse strengths, decoder weights, gain functions, or Jacobian entries around the operating point. “Connectome-constrained” is not read as direct state measurement.
Task/state regime and omitted mechanisms Name the stimulus/behaviour/state regime, held-out/OOD slices, and omitted or frozen mechanisms such as electrical synapses, neuromodulation, glia, plasticity, or body/environment loops. Task-bounded success is not promoted to arbitrary-task, whole-brain, or maintenance-complete competence.
Validation, uncertainty, and ceiling Name whether validation came from held-out activity, same-brain physiology, perturbation, behaviour, or only task loss; then expose ensemble spread / alternative families and declare the ceiling. The result is not promoted to unique internal-state recovery or general mechanistic solution.
Minimum operating rules

If this card is missing, this site treats the result as L0/L1 reproducible analysis or limited decode and does not promote it to L2 or above. For example, the default ceiling is macro-state tracking for EEG / HD-EEG + MRI only, an implant-region local population window for high-density extracellular probe only, structural scaffold for volume EM only, local ex vivo scaffold for human ultrastructure without a destructive-structure route card, molecular / spatial prior for whole-brain atlas only, and still only local conditional prediction even for same-brain calcium + EM. For inverse or model-based claims, a submission without an Identifiability Card is not accepted here as unique internal-state recovery and remains at the predictive / localization / model-conditioned ceiling even if its observability class improved. For living-human multi-stack proxy claims, a submission without a Human Proxy Composition Card is not accepted here as same-subject cross-stack state identification and remains at the strongest single-route or proxy-rich but ceiling-limited level. For sequential cross-regime claims, a submission without a State-Continuity Bridge Card is not accepted here as same-state evidence and remains at the strongest directly supported stage plus an unvalidated bridge. For hemodynamic modalities, a group or cross-day BOLD / fNIRS difference without vascular-state / CVR or short-separation / superficial-bias audit is not accepted here as a neural difference. For diffusion-MRI tractography, a connectome claim without a tractography route card is not accepted here as an edge-complete graph and remains at the macro pathway prior / targeted bundle hypothesis ceiling. For connectome-constrained predictors, a model claim without a conditional-model route card remains at the conditional hypothesis engine / task-bounded predictor ceiling and is not accepted here as unique internal-state recovery. If a chronic-probe result lacks a unit-identity audit, single-unit longitudinal claims are not accepted. Detailed stack-specific ceilings and the state variable × timescale matrix are summarized in Wiki: observability and claim ceiling by measurement stack.

Latent-state error budget

The Observability Budget fixes what entered the sensor and what was directly measured. The next question is different: which still-unobserved variables dominate the remaining error and stop the claim from being raised? This site therefore asks L2 and above submissions to disclose a latent-state error budget rather than only saying that "important hidden state remains." The purpose is to separate connectome-only or sensor-only limits from augmentation claims, and to show which omitted state family still blocks the current ceiling.

Latent-state family Minimum disclosure What this site stops claiming if still latent
Current synaptic efficacy / short-term state Write whether current weights, release probability, release-site number, active-zone nanostructure / priming-site assembly, receptor occupancy, or short-term state were directly measured, externally calibrated, modeled from proxy, or left latent. Mechanistic intervention prediction, closed-loop stability, and timing-sensitive reconstruction are demoted back toward structural or correlational claims.
Intrinsic excitability / homeostatic controller Separate relative excitability for allocation, AIS / channel state, and recovery controller, and disclose which parts were measured versus only inferred. Cross-day stability, memory-allocation, and perturbation-recovery claims stay provisional.
Activity-dependent transcription / chromatin state Disclose whether current transcriptional / chromatin state was time-stamped, causally perturbed, externally calibrated, or replaced by a static atlas / DEG clue, and name whether the direct object was accessibility, histone-mark state, DNA-methylation program, higher-order looping, or locus-specific editing. Allocation eligibility, late stabilization, and locus-specific plasticity-control claims remain latent.
Post-transcriptional RNA-state Disclose whether splice-isoform ratios, RNA-editing state, m6A modification / reader route, or isoform-resolved long-read assay was directly measured, causally perturbed, externally calibrated, or replaced by gene-level abundance alone, and state which downstream object the paper actually constrained. Isoform-specific receptor composition, m6A-dependent translation / degradation, and editing-dependent plasticity claims remain latent.
Phospho-signaling / second-messenger state Disclose whether phosphosite occupancy, kinase/phosphatase balance, cAMP/Ca2+/PKA nanodomain state, or phospho-proteomic route was directly measured, causally perturbed, externally calibrated, or silently replaced by transcript/protein abundance alone. Phosphosite-dependent plasticity, signaling-gate, and nanodomain-controller claims remain latent.
Local proteostasis / synaptic-tagging route Disclose the claim family (tag / capture, branch-level integration, synthesis-degradation balance, autophagy-linked remodeling, turnover-resistant persistence, or proteasome-capacity intervention), the integrative unit, the direct observable, the turnover window, the perturbation route, and whether any human route is externally calibrated or remains latent. Late stabilization, reconsolidation, cross-event capture, or turnover-resistant persistence do not become closed mechanisms.
Cargo-transport / cytoskeletal trafficking route Disclose the claim family (postsynaptic receptor delivery, activity-dependent vesicle confinement, learning-dependent microtubule-state gate, dendritic / synaptic RNA-granule organization, axonal RNA localization / presynaptic mRNA targeting, or presynaptic cargo retention), the cargo object, the compartment scope, the transport phase / state variable, the trigger / time window, the direct observable, and whether the strongest human-facing evidence is still limited to a narrow preparation or no human route at all. Compartment-specific stabilization, receptor localization, synaptogenesis, and branch-level maintenance claims remain latent.
Ionic milieu / chloride homeostasis Attach an ionic / chloride route card that states the claim family (chloride-set-point / EGABAA tuning, transporter-state regulation, interstitial-ion state switching, perisynaptic K+ clearance, pathology route, or quantity-defined human macro ionic proxy), the direct ionic observable, the spatial regime, the perturbation / controller route, and, when the human route is sodium-based, the human quantity type / compartment model (for example TSC, normalized sodium density-weighted, SQ+TQF-derived ISMF / ISC / ISVF, mono-/bi-T2 separation, or short-component fraction), together with whether the strongest human-facing evidence is pathology tissue, CSF ion assay, sodium MRI proxy, or no human route at all. Inhibitory polarity, rhythm stability, and state-transition claims stay provisional or fall back to coarse excitability proxies.
Shared extracellular / electrical state Attach a shared extracellular / electrical-state route card that states the claim family (gap-junction coupling network, endogenous-field / ephaptic route, extracellular-space geometry / diffusion-barrier route, inhibitory driving-force regime, activity-dependent electrical-synapse remodeling, human wakefulness-related ECS proxy clue, or human perturbation-conditioned clue), the direct extracellular / electrical observable, the spatial regime, the perturbation / calibration route, and whether the strongest human-facing evidence is a direct local preparation, a specialized optical assay, a diffusion-MRI proxy clue, a pharmacological perturbation clue, or no human route at all. Fast synchrony, oscillatory coordination, spindle / slow-oscillation coupling, and electrotonic-regime claims stay provisional or fall back to chemical-connectome-plus-proxy language.
Timing-state / conduction support Attach a timing-state / myelin route card that states the claim family (activity-dependent oligodendrogenesis / learning, node-internode-periaxonal timing control, plasticity-brake function, remyelination-to-function recovery, or human macro timing / myelin proxy), the direct structural unit / observable, the functional target, the recovery / completeness boundary, and, for human evidence, the quantity type / proxy class (for example tract-speed estimation, MWF, MT / MTsat / qMT / MPF-family contrast, bilayer-sensitive mapping, qT1 remyelination-sensitive readout, or developmental diffusion-microstructure modelling with ex vivo alignment), together with whether timing variables were measured, externally calibrated, absorbed into a constant, or left latent. Phase, synchrony, and timing-complete reconstruction claims are demoted to hardware-fast or macro-timing proxy claims.
Neuromodulatory specificity Disclose whether the route was a mixed arousal proxy, local axon / transmitter sensor, receptor / transporter atlas, occupancy PET, or release-sensitive displacement PET; then report receptor family, tracer / ligand, occupancy-versus-displacement design, challenge or administered drug plus dose when applicable, arterial-versus-reference quantification route, kinetic or simplified model, temporal window, spatial scope, partial-volume handling when relevant, and abstention boundary. Momentary whole-brain transmitter-field, receptor-family-complete internal-state, and lamina- or cell-specific modulatory-effect claims fall back to coarse covariate, regional prior, or challenge-limited proxy claims.
Glial metabolism / substrate routing Disclose whether the route was lactate-shuttle support, glia-to-neuron ketone-body routing under starvation, glia-to-neuron fatty-acid flux during intensive learning, apoE / sortilin-dependent lipid delivery, a glial metabolic proxy, or only a macro support proxy, together with species / region / regime, supplier cell, neuronal sink, fuel object, and what human route remained absent. Long-horizon plasticity and memory-support claims remain partial-model claims because the operative supplier cell, fuel class, and transport route stay latent.
Astrocyte network / ensemble support Disclose whether the route was minute-scale astrocyte-network encoding, learning-associated recall ensemble, multiday stabilization ensemble, fear-state representation, target-defined human MAO-B or I2BS astrocyte-related PET, or only a macro support proxy, together with species / region / timescale limits and what human astrocyte controller remained latent. Retrieval, reconsolidation, multiday stabilization, and fear-state-support claims remain partial-model claims.
Clearance / immune support Attach a clearance / immune route card that states claim family, direct observable, physiology-driver or perturbation route, human route object / quantity type, human measurement / model burden, and abstention boundary. Also disclose whether the strongest human-facing evidence is a transport-side route such as macroscopic CSF oscillation, parenchyma-CSF water exchange, respiration-conditioned net-flow, exercise-conditioned contrast influx, CSF mobility, intrathecal tracer retention / CSF-to-blood clearance, or model-based biomarker efflux, a target-defined neuroimmune PET route such as TSPO disease-context / validation-bounded PET, CSF1R route-setting PET, or COX-2 enzyme-defined PET, or no human route at all. Multiday recovery, protein-clearance, synaptic-maintenance, and support-state claims remain support-proxy claims rather than local immune-controller or maintenance-state claims.
Chronic unit identity For chronic invasive work, report whether unit matching, tissue response, and interface drift were separately audited. Single-unit longitudinal and chronic closed-loop claims are not accepted as stable identity claims.
How to use this budget on this site

The latent-state error budget is not a second abstract. It is a submission-side stop-rule table. If a paper adds one extra evidence layer, such as transcriptomics, SV2A PET, receptor / transporter atlas priors, occupancy PET, release-sensitive displacement PET, myelin imaging, a glial perturbation, or a clearance proxy, it should say which error term that layer reduces under the same held-out condition and which latent families remain untouched. This is the site-wide rule behind the augmentation / ablation logic in State variable integrity gate.

2026-03-22 addendum: neuromodulatory evidence also needs a route card

On this site, mixed arousal proxy, local transmitter sensor, receptor / transporter atlas, occupancy PET, and release-sensitive displacement PET are not treated as equivalent. Reimer et al. (2016) showed that pupil fluctuations track both adrenergic and cholinergic activity, Neyhart et al. (2024) showed that local cortical ACh depends on axon activity and local clearance, Hansen et al. (2022) and Goulas et al. (2021) showed that receptor maps are structured regional priors, Wong et al. (2013) showed selected D2-receptor target engagement by an administered drug, and Koepp et al. (1998), Lippert et al. (2019), and Erritzoe et al. (2020) showed challenge- and window-limited dopamine or serotonin release proxies. Therefore, submissions that depend on neuromodulation now have to state not only which rung was used, but also the claim family, transmitter axis / receptor family, direct observable, challenge or administered-drug route, time window / model burden, and abstention boundary before any claim ceiling is raised. The longer public rule is in Wiki: neuromodulatory route card.

2026-03-18 addendum: PET-based evidence is unreadable without the measurement model

For PET-based routes, naming the modality is still too coarse. Naganawa et al. (2021) showed for human SV2A PET that the quantification route depends on metabolite-corrected arterial input, reference-region choice, compartment model, and scan window. Smart et al. (2021) showed that [11C]UCB-J binding measures stay unchanged during brief visual activation despite blood-flow-driven influx changes, so synaptic-density PET should not be read as momentary synaptic efficacy. Hansen et al. (2022) showed that receptor atlas is built from group-average PET maps from more than 1,200 healthy individuals, Wong et al. (2013) quantified occupancy for an administered antipsychotic, and Koepp et al. (1998), Lippert et al. (2019), and Erritzoe et al. (2020) used challenge-linked binding changes as displacement-based release proxies. This site therefore requires tracer, occupancy-versus-displacement design, challenge or administered drug plus dose when applicable, quantification route, model/window, and partial-volume handling where relevant before any PET-based claim ceiling is interpreted.

2026-03-21 addendum: synaptic-density PET is not one audit item

SV2A PET now gets its own route-card logic on this site. Naganawa et al. (2021) fixes tracer and quantification burden, Johansen et al. (2024) is a healthy-human atlas, Shatalina et al. (2024) is a task / cognition association study, Smart et al. (2021) shows that brief activation does not produce a momentary SV2A state readout, and Holmes et al. (2022) shows that rapid ketamine response need not imply measurable SV2A change at 24 h. Therefore, submissions that cite synaptic-density PET must state whether the paper is an atlas, disease / risk contrast, task / cognition association, intervention / target-engagement design, or something narrower, and must disclose tracer, quantification route, anatomy / partial-volume handling, and abstention boundary before the claim ceiling is raised. The longer route is Wiki: SV2A / synaptic-density PET route card.

2026-04-01 addendum: synaptic-density is not presynaptic release-machinery evidence

Another shortcut needed to be blocked here. Molnár et al. (2016), Sakamoto et al. (2018), Dürst et al. (2022), and Emperador-Melero et al. (2024) together show that release-site number, docked-vesicle organization, active-zone nanostructure, and current release competence are not exhausted by synapse count or regional SV2A density. Therefore, this budget now keeps regional synaptic-density proxy and presynaptic release machinery as separate audit objects. The longer public argument is in Wiki: Why wiring diagrams alone are not enough.

Maintenance-state error budget

Cross-day and remote-memory claims fail for a different reason than same-session decoding claims. Even when short-term performance holds, the result may still leave the maintenance route almost completely latent. This site therefore asks cross-day, recovery, reconsolidation, or remote-memory submissions to disclose a maintenance-state error budget that keeps controller state, post-transcriptional RNA-state, phospho-signaling / second-messenger state, sleep history, sleep architecture / replay-coupling state, timing support, thermal-state, bioenergetic / mitochondrial support, neurovascular-unit / BBB / pericyte support, glial substrate-routing, astrocyte-state, and other multiday support-state proxies separate.

Maintenance-state field Minimum disclosure Ceiling if omitted
Controller state State whether relative excitability, homeostatic return target, or allocation-related controller variables were measured, perturbed, externally calibrated, or left latent. Same-day fit does not become maintenance-consistent or memory-allocation-consistent.
Post-transcriptional RNA-state Report whether isoform ratios, m6A-dependent translation / degradation routes, RNA-editing ratios, or only gene-level transcript counts were available, and which assay or perturbation established the relevant RNA-state. Cross-day stabilization, receptor-composition carryover, and editing-dependent maintenance claims are not promoted to RNA-state-consistent maintenance evidence.
Phospho-signaling / second-messenger state Report claim family (phosphosite gate, kinase/phosphatase controller, compartmentalized second-messenger routing, region-structured phosphoproteome atlas, or phospho-mutant causal edit), the assay / direct observable, spatial or compartment scope, timing window, causal leverage, and whether only transcript/protein abundance was available. Cross-day stabilization, phosphosite-dependent capture, and signaling-gate claims are not promoted to phospho-state-consistent maintenance evidence.
Sleep / wake history Report sleep / wake interval, deprivation, nap / recovery condition, and the time window over which renormalization was or was not checked. Cross-day hold is not promoted to overnight maintenance or post-learning re-equilibration.
Sleep architecture / replay-coupling state Report stage composition, named NREM substate / physiology gate, event definition, cue / stimulation timing and dose policy, sleep-integrity or arousal burden, memory subset / age when relevant, and which slow-oscillation / spindle / ripple or targeted-memory-reactivation coupling measures were available, which were only proxy-estimated, and which replay-timing variables remained latent. A night with sleep, oscillation gain, a delivered cue, or average overnight gain is not promoted to replay-consistent or consolidation-mechanism evidence.
Timing support Separate hardware latency from tissue-side timing support such as myelin / conduction proxy or externally calibrated timing-state. Hardware-fast remains hardware-fast; it does not become timing-complete maintenance evidence.
Thermal-state Attach a thermal route card that states the claim family, direct thermal observable, spatial / preparation regime, driver / perturbation route, time window, function target, and whether the evidence is local physiology, a field-potential confound audit, a device-heating artifact, a brain-state proxy, or only a human macro thermometry / task-linked thermal mapping route. Also disclose what microtemperature gradients, synapse-specific heating burden, thermal-controller variables, or local thermal sensitivities remained latent. Field-potential amplitude, membrane-kinetic, rhythm-state, and sequence-timing claims are not promoted to thermal-state-consistent maintenance evidence.
Ionic / chloride state Attach an ionic / chloride route card that states the claim family, direct ionic observable, spatial regime, perturbation / controller route, function target, and, when the human route is sodium-based, the human quantity type / compartment model. Also disclose whether the evidence is local physiology, pathology tissue, CSF ion assay, sodium MRI proxy, or only a coarse external calibrator, and what chloride microdomains, transporter balance, perisynaptic K+ handling, concentration-versus-volume-fraction ambiguity, or local EGABAA variables remained latent. Cross-day or recovery success is not promoted to inhibitory-polarity-consistent or state-transition-consistent maintenance evidence.
Shared extracellular / electrical state Attach a shared extracellular / electrical-state route card that states the claim family, direct extracellular / electrical observable, spatial regime, perturbation / calibration route, function target, and whether the evidence is a gap-junction preparation, an endogenous-field / ephaptic perturbation, an extracellular-space geometry / diffusion assay, an osmotic challenge, a direct inhibitory-driving-force assay, an activity-dependent electrical-synapse remodeling experiment, a human diffusion-MRI proxy clue, or only a human perturbation-conditioned clue. Also disclose what local coupling topology, extracellular-field geometry, extracellular volume-fraction / tortuosity / diffusion-barrier variables, inhibitory reversal / shunt regime, or state-switch thresholds remained latent. Cross-day or recovery success is not promoted to electrical-state-consistent synchrony, oscillation, or spindle / slow-oscillation coordination evidence.
Bioenergetic / mitochondrial support Attach a bioenergetic / mitochondrial route card that states the claim family, compartment, direct energetic observable, quantity type / model burden, function target, and whether the evidence is a local mechanism, a metabolic-tuning intervention, or only a human macro energetic proxy. Also disclose what local ATP reserve, mitochondrial positioning, fission/fusion, Ca2+-efflux control, or redox variables remained latent. Repeated-stimulation reliability and energetic mechanisms of dendritic plasticity remain provisional.
Cargo-transport / cytoskeletal trafficking support Attach a cargo-transport route card that states the claim family, cargo object, compartment scope, transport phase / state variable, trigger / time window, direct observable, causal leverage, and whether the evidence is only a narrow culture preparation or no human route at all. Also disclose which branch / spine / bouton destinations, motor states, or cargo classes remained latent. Cross-day stabilization, synaptogenesis, and compartment-delivery claims are not promoted to transport-consistent maintenance evidence.
Glial metabolism / substrate routing Write whether the route is lactate-shuttle support, glia-to-neuron ketone-body routing under starvation, glia-to-neuron fatty-acid flux during intensive learning, apoE / sortilin-dependent lipid delivery, a glial metabolic proxy, or only a macro support proxy, and name species / region / regime together with supplier cell, neuronal sink, fuel object / carrier, and what human route remained absent. Memory-support, nutrient-regime, and long-horizon plasticity claims remain partial-model claims because the operative glial supplier and transport route stay latent.
Astrocyte network / ensemble support Write whether the route is minute-scale astrocyte-network encoding, learning-associated recall ensemble, multiday stabilization ensemble, fear-state representation, human MAO-B or I2BS astrocyte-related PET, or only a macro support proxy, and name the species / region / timescale when rodent causal evidence is being used as support. If human PET is used, also name the target, quantification route, disease / cohort regime, and material covariates such as smoking when they condition the reading. Memory retrieval, reconsolidation, multiday stabilization, and fear-state support remain partial-model claims.
Clearance / immune support Report whether the evidence is meningeal-lymphatic, CSF-interstitial, microglia-related, sleep-linked, or target-defined neuroimmune PET, and if the human route is transport-side, type it explicitly as macroscopic CSF oscillation, parenchyma-CSF water exchange, respiration-conditioned net-flow, exercise-conditioned contrast influx, intrathecal tracer / CSF-to-blood clearance, CSF mobility, or model-based biomarker efflux. If the human route is target-defined neuroimmune PET, type it explicitly as TSPO disease-context / validation-bounded, CSF1R route-setting, or COX-2 enzyme-defined. Also state what remained only a macro proxy or target-defined PET proxy, which carrier / crossed boundary or target class was involved, and what cell-specific controller remained unobserved. Multiday recovery, protein-clearance, and synaptic-maintenance claims remain support-proxy claims rather than local maintenance-state claims.
Human evidence class / observability ceiling Label each human-side route as structural scaffold, regional density proxy, macro biochemical / energetic / ionic / thermal / myelin / support proxy, or perturbation-conditioned proxy, then state its operational maturity and calibrator role, meaning which hidden-state family it safely constrains and which local states still remain latent. If the route is PET-based, also name the tracer, quantification model or validated scan window, whether partial-volume correction or atlas calibration was used, and, when one family spans several comparison types, the family-internal comparison family; for SV2A PET, this means explicitly naming quantification route, healthy atlas / baseline, disease / risk contrast, task / cognition association, activation-null, or intervention-response. If the route is MRSI-based, also name the metabolite set, parceling unit, resolution plus PSF / partial-volume correction, water / lipid handling, spectral QC thresholds, and whether the claim is static similarity or kinetic rate imaging. If the route is sodium-MRI-based, also name whether the quantity is tissue sodium concentration (TSC), normalized sodium density-weighted, SQ+TQF-derived ISMF / ISC / ISVF, mono-/bi-T2 separated signal, or short-component fraction, together with the compartment model, calibration assumption, repeatability regime, and acquisition burden. If the route is myelin-MRI-based, also name whether the quantity is myelin-water, MT / MTsat / qMT / MPF-family contrast, bilayer-sensitive ultrashort-T2 mapping, qT1 remyelination sensitivity, T1w/FLAIR tissue-health-sensitive ratio, or only tract-speed estimation, together with orientation dependence, hardware burden, validation target, and whether the safe reading is still broader than myelin-specific contrast. If the route is clearance-based, also name whether the quantity is macroscopic CSF oscillation, parenchyma-CSF water exchange, respiration-conditioned net flow, exercise-conditioned contrast influx, intrathecal tracer / CSF-to-blood clearance, CSF mobility, or model-based biomarker efflux, together with carrier / analyte class, crossed boundary, intervention regime, and route-local validation burden. If several living-human routes are combined, also attach a Human Proxy Composition Card. Human proxy bundles are not promoted to state-complete maintenance snapshots.
2026-03-18 addendum: sleep history is not sleep architecture

Ngo et al. (2013) showed in humans that in-phase slow-oscillation stimulation enhances spindle coupling and memory whereas out-of-phase stimulation does not, Maingret et al. (2016) and Latchoumane et al. (2017) showed in rodents that fine-tuned slow-oscillation / spindle / ripple coordination causally supports consolidation, Schreiner et al. (2021) showed that SO-spindle coupling precision predicts endogenous reactivation strength in humans, Geva-Sagiv et al. (2023) showed that real-time enhancement of hippocampal-prefrontal synchrony improves overnight human memory, Schreiner et al. (2024) linked spindle-locked ripples to human memory reactivation, and Deng et al. (2025) showed that NREM consolidation itself has a specific intracellular time window. This site therefore records sleep duration/history and sleep architecture / replay-coupling separately.

2026-03-20 addendum: sleep replay evidence also needs a route card

The remaining weakness was that sleep replay evidence could still compress a phase-locked healthy-human stimulation study, an endogenous scalp-decoding study, an intracranial closed-loop synchrony intervention, and an item-selective TMR result into one bucket. The primary literature does not support that shortcut. Schreiner et al. (2021) explicitly notes aggregated SO-spindle events, modest decoding levels, and scalp blindness to ripple ground truth, Duan et al. (2025) shows that strengthening and decaying items can coexist within the same human TMR session, and Shin et al. (2025) shows that behavioral benefit can concentrate in the challenging-memory regime rather than appearing uniformly across items. Therefore, this site now asks cross-day or sleep-replay claims to attach a sleep replay route card naming preparation, event definition, timing / control policy, memory target / selection regime, and abstention boundary. The full public rule is summarized in Wiki: sleep replay route card.

2026-03-21 addendum: myelin evidence also needs a route card

The remaining weakness was that myelin evidence could still compress learning-dependent oligodendrogenesis, node / internode / periaxonal timing-state, developmental plasticity brake, remyelination-to-function recovery, and human quantity-defined myelin proxy rows into one bucket. The primary literature does not support that shortcut. On the human side, Arshad et al. (2017) showed that calibrated T1w/T2w can be reliable while still having low criterion validity against MWF, Hagiwara et al. (2018) showed stronger agreement between SyMRI and MTsat than with T1w/T2w, Baadsvik et al. (2024) demonstrated bilayer-sensitive mapping only in two healthy volunteers, Chen et al. (2025) showed that orientation dependence is itself a route variable for conventional MT, Galbusera et al. (2025) showed that qT1 but not MWF or MTR separated demyelinated from remyelinated cortical lesions, and Colaes et al. (2026) showed that T1w/FLAIR remained only weakly associated with MWF and is safer to read as a broader tissue-health marker. On this site, maintenance-state submissions must therefore state which inferential object they are actually using, what structural unit was directly observed, whether functional recovery occurred with partial versus complete remyelination, whether a route should be read as myelin-sensitive or only tissue-health-sensitive, and whether the human evidence is only a proxy row rather than direct timing-state ground truth. The full public rule is summarized in Wiki: myelin / oligodendrocyte route card.

2026-03-20 addendum: do not collapse phospho-signaling into transcript or protein abundance

Giese et al. (1998), Lee et al. (2003), Rodrigues et al. (2004), Tomita et al. (2005), and Vierra et al. (2023) show that phosphosite-specific and nanodomain-specific signaling states can determine plasticity expression and maintenance-relevant routing even when transcript or bulk protein abundance looks similar. Current human evidence such as the ex vivo phosphoproteome atlas from Biswas et al. (2023) is informative for region-specific ceiling setting, but it is still not a comparable in vivo whole-brain human route. Therefore, when a claim depends on phosphosite occupancy, kinase/phosphatase balance, or local second-messenger state, this site asks authors to disclose whether phospho-signaling was directly measured, causally perturbed, externally calibrated, or silently replaced by transcript/protein abundance alone.

2026-03-20 addendum: phospho-signaling evidence also needs a route card

The remaining weakness was that phosphosite-specific plasticity gates, compartmentalized second-messenger routing, region-structured phosphoproteome atlases, and single-site phospho-mutant memory interventions could still be compressed into one bucket called phospho evidence. The primary literature does not support that shortcut. Havekes et al. (2016) is about compartment-targeted PDE4A5 signaling in hippocampal memory, Altas et al. (2024) is region-specific phosphorylation with synapse-type relocalization in mouse and human samples, Rodriguez et al. (2025) is a single-site phospho-mutant causal memory intervention, and Biswas et al. (2023) is a human ex vivo phosphoproteome atlas. On this site, phospho-signaling claims now have to disclose claim family, biological regime, time axis, assay and direct observable, spatial / compartment scope, causal leverage, and abstention boundary. The full operating rule is in Wiki: phospho-signaling route card.

Do not collapse energetic support into glial support

Rangaraju et al. (2014), Underwood et al. (2023), Rangaraju et al. (2019), Divakaruni et al. (2018), Bapat et al. (2024), Hu et al. (2025), and Vishwanath et al. (2026) support a narrower rule: local ATP supply, respiration, mitochondrial positioning, and energetic micro-organization can change repeated-burst reliability and dendritic plasticity even before one asks whether astrocyte or clearance-state matched. Conversely, human 31P-MRS metabolite / pH balance routes (Ren et al., 2015), 31P MT exchange-flux routes (Ren et al., 2017), 31P NAD-content mapping routes (Guo et al., 2024), localized functional 31P NAD-dynamics routes (Kaiser et al., 2026), deuterium metabolite-mapping / absolute-quantification routes (Karkouri et al., 2026), and deuterium kinetic-rate imaging (Li et al., 2025) remain macro energetic proxies rather than direct readouts of branch-local mitochondrial state. Ahmadian et al. (2025) further showed that human-brain deuterium signal depends materially on the administered glucose dose, and Bøgh et al. (2024) showed that repeatability depends on a named acquisition and time-point regime. This site therefore records energetic route and glial route separately.

2026-03-21 addendum: bioenergetic evidence also needs a route card

The remaining weakness was that bioenergetic evidence could still compress presynaptic ATP-linked respiration, dendritic positioning / fission support, synaptic ATP-synthase nano-organization, mitochondrial Ca2+-efflux tuning, and a single macro energetic row into one bucket. The primary literature does not support that shortcut. On this site, maintenance-state submissions must now state which inferential object they are actually using, which compartment was directly observed, whether the quantity is respiration, ATP-synthase arrangement, Ca2+-efflux-driven metabolic tuning, or only a macro 31P metabolite / pH balance, 31P MT exchange-flux, 31P NAD-content mapping, localized functional 31P NAD-dynamics, deuterium metabolite-mapping / absolute-quantification, or deuterium kinetic-rate proxy, what dose / time-point / repeatability regime conditioned any deuterium route, what function target was tested, and which local mitochondrial controller remained latent. The full public rule is summarized in Wiki: bioenergetic / mitochondrial route card.

2026-04-01 addendum: glial substrate-routing is not generic astrocyte background

Suzuki et al. (2011) is a lactate-shuttle route, Silva et al. (2022) is a glia-to-neuron ketone-body route under starvation, Pavlowsky et al. (2025) is an intensive-learning glia-to-neuron fatty-acid route, and Greda et al. (2025) is an apoE / sortilin-dependent lipid-delivery and neuronal fuel-choice route when glucose is limited. Therefore, this site does not let `glial support` stand in for astrocyte network state, neuronal mitochondrial arrangement, or a generic human energetic proxy. Submissions that depend on glial fuel support now have to state claim family, supplier / sink, fuel object / carrier, regime trigger, route, and abstention. The longer public rule is in Wiki: glial substrate-routing route card.

2026-03-20 addendum: astrocyte-state is not generic support background

Cahill et al. (2024) showed minute-scale cortical astrocyte-network encoding of local neurotransmitter input, Williamson et al. (2025) showed that learning-associated astrocyte ensembles can regulate hippocampal memory recall, Dewa et al. (2025) showed that astrocytic ensembles can stabilize emotional memory across multiple days, and Bukalo et al. (2026) showed that basolateral-amygdala astrocyte Ca2+ signalling supports fear-memory retrieval / extinction representations. Therefore, this site does not accept a submission that depends on recall, multiday stabilization, or fear-state support while writing only a generic glial-support sentence. Authors now have to state whether the relevant astrocyte-state was directly measured, perturbed, only coarsely proxied, or left latent, and they must keep the rodent-to-human observability gap explicit.

2026-03-21 addendum: astrocyte evidence also needs a route card

The remaining weakness was that astrocyte evidence could still compress minute-scale cortical network encoding, learning-associated recall ensembles, multiday stabilization ensembles, fear-state representations, and target-defined human astrocyte-related PET routes into one bucket. The primary literature does not support that shortcut. Villemagne et al. (2022) is a first-in-human MAO-B SMBT-1 target-validation route, Villemagne et al. (2022) is an AD-spectrum disease-context route in the same tracer family, Hiraoka et al. (2025) is a brain-quantification route, Mesfin et al. (2026) is a whole-body biodistribution route, Matsuoka et al. (2026) is a simplified arterial-free SL25.1188 AD quantification route, Tyacke et al. (2018) is a human I2BS PET route, Livingston et al. (2022) shows BU99008 uptake can vary with region and impairment stage, Best et al. (2026) shows that SL25.1188 MAO-B binding can move with cohort severity and daily cigarette use, and Jaisa-Aad et al. (2024) shows that MAO-B varies across AD/ADRD classes. On this site, maintenance-state submissions must now state which inferential object they are actually using, what the direct astrocyte observable is, whether the result depends on transporter blockade, ensemble reactivation, gene deletion, astrocyte Ca2+ intervention, or only tracer binding, what the functional target actually is, what human target / tracer family / route role / quantity type, brain-quantification regime or whole-body tracer-burden regime, disease / cohort regime, and material covariates remain, and which human astrocyte controller is still latent. The full public rule is summarized in Wiki: astrocyte route card.

2026-03-20 addendum: clearance / immune support is not passive cleanup

Louveau et al. (2015) and Ahn et al. (2019) established meningeal-lymphatic drainage routes, Kim et al. (2025) showed that a meningeal-lymphatics-microglia axis can regulate synaptic physiology, Eide & Ringstad (2021) showed that sleep deprivation impairs molecular clearance in humans, Hirschler et al. (2025) measured region-specific CSF-mobility drivers, Lim et al. (2025) reported respiration-conditioned CSF net flow in awake humans while also warning that plane-specific 2D PC-MRI net flow does not by itself represent whole-brain bulk circulation, and Dagum et al. (2026) linked sleep-active physiology to overnight Aβ / tau clearance to plasma in healthy older adults. Therefore, this site does not accept a submission that depends on multiday recovery, protein clearance, or maintenance support while naming only a generic cleanup story. Authors now have to state whether the relevant evidence was meningeal-lymphatic / CSF-interstitial / microglia-related, whether the human route was macroscopic CSF oscillation, parenchyma-CSF water exchange, respiration-conditioned net-flow MRI, CSF mobility, intrathecal tracer retention / CSF-to-blood clearance, or model-based biomarker efflux, whether it remained only a transport-side human proxy, and which local immune or synaptic-maintenance controller remained latent.

2026-03-21 addendum: clearance / immune evidence also needs a route card

The remaining weakness was that clearance evidence could still compress drainage anatomy, microglia-mediated synaptic mechanism, macroscopic CSF oscillation, parenchyma-CSF water exchange, respiration-conditioned net-flow MRI, human CSF-mobility MRI, intrathecal tracer retention / CSF-to-blood clearance, and model-based human biomarker efflux into one bucket. The primary literature does not support that shortcut. On this site, maintenance-state submissions must now state which inferential object they are actually using, whether it is a transport-side human route or an immune-effector route, what the direct observable is, whether the result depends on a physiology / sleep / lymphatic perturbation route, which human route object / quantity type is in play, what human acquisition or model burden remains, and which local immune or synaptic controller is still latent. The full public rule is summarized in Wiki: clearance / immune route card.

2026-04-03 addendum: target-defined human neuroimmune PET is not the same as clearance transport

Another remaining shortcut had to be blocked. Current human-side immune support evidence is not transport-only, but that does not mean that all human immune evidence now forms one reusable row. Biechele et al. (2023) showed that TSPO is not a species-invariant human activation-state meter, Wijesinghe et al. (2025) constrained a TSPO disease-context / validation-bounded route in PSP, Horti et al. (2022) and Ogata et al. (2025) constrained first-in-human CSF1R PET routes, and Yan et al. (2025) constrained an enzyme-defined COX-2 route with celecoxib blockade. Therefore, this site now reads the human lane as at least two different bounded lanes, transport-side clearance routes and target-defined neuroimmune PET routes, and even inside the PET lane it still requires typing as TSPO disease-context / validation-bounded, CSF1R route-setting, or COX-2 enzyme-defined before any claim ceiling is raised.

Do not collapse cargo delivery into proteostasis or ATP

Park et al. (2006) showed that recycling-endosome exocytosis is required for LTP-associated spine growth, Maas et al. (2009) showed that synaptic activation modifies microtubules that support postsynaptic cargo transport, Yin et al. (2011) and Zhao et al. (2020) showed that kinesin-dependent cargo routes change receptor levels, plasticity, and memory, Swarnkar et al. (2021) linked KIF5C-mediated transport to structural plasticity and long-term memory, and Aiken & Holzbaur (2024) showed that axonal microtubule patterning controls presynaptic cargo delivery. This site therefore records cargo-transport state separately from both proteostasis and bioenergetics. Current human in vivo routes do not directly reveal branch- or bouton-specific cargo pausing, motor engagement, or microtubule traffic state, so this route stays latent unless externally calibrated.

2026-03-21 addendum: cargo evidence also needs a route card

The remaining weakness was that cargo evidence could still compress postsynaptic AMPAR / recycling-endosome delivery, learning-phase microtubule-state gating, activity-dependent vesicle confinement, dendritic / synaptic RNA-granule organization, axonal RNA localization, and presynaptic cargo retention into one bucket. The primary literature does not support that shortcut. Correia et al. (2008) is about myosin-Va-dependent transport of AMPARs into spines during LTP, Uchida et al. (2014) is about learning-phase microtubule stability controlling KIF5-mediated GluA2 localization and memory, Wong et al. (2024) is about local confinement of endogenous GluA1 vesicles near stimulated dendritic regions, Nakayama et al. (2017), Liau et al. (2023), and Espadas et al. (2024) are about dendritic / synaptic RNA cargo organization, de Queiroz et al. (2025) is about axonal RNA localization required for long-term memory in a mature in vivo circuit, and Aiken & Holzbaur (2024) is about presynaptic cargo delivery and pausing in a human-neuron preparation. On this site, maintenance-state submissions must now state which inferential object they are actually using, what cargo was followed, whether the result is about long-range delivery, local pausing / confinement, spine entry, dendritic / synaptic RNA organization, axonal RNA localization, or presynaptic retention, what preparation and time window were used, and whether the strongest human evidence is still limited to narrow preparations rather than living-human in vivo measurement. The full public rule is summarized in Wiki: cargo-transport / cytoskeletal trafficking route card.

2026-03-22 addendum: thermal evidence also needs a route card

The remaining weakness was that thermal evidence could still compress local operating-point physiology, field-potential confound, sequence / rhythm perturbation, device-heating artifact, human passive / task-linked macro thermometry, and human perturbation-conditioned thermal routes into one bucket. The primary literature does not support that shortcut. Hardingham & Larkman (1998) is about temperature-dependent synaptic reliability, Moser et al. (1993) is about field-potential amplitude being masked by temperature variation, Long & Fee (2008) is about sequence timing under local cooling, Owen et al. (2019) is about heating introduced by the perturbation device itself, Rzechorzek et al. (2022), Rogala et al. (2024), plus Tan et al. (2025) are human passive / task-linked macro thermometry routes, Tan et al. (2024) is a systemic heat-perturbation human route, and Inoue et al. (2025) is an intraoperative focal-cooling / neurovascular human route. On this site, maintenance-state submissions must now state which inferential object they are actually using, what the direct thermal observable is, whether the result depends on local cooling / warming, a recording confound audit, a device-heating burden, systemic heat exposure, or intraoperative focal cooling, what time window and function target were tested, what human route class remains, and which local thermal controller is still latent. The full public rule is summarized in Wiki: thermal route card.

2026-03-18 addendum: human maintenance evidence must be class-labeled

On this site, Wiki: Homeostatic plasticity and maintenance-state now distinguishes fixed-tissue structural scaffold, regional synaptic-density proxy, regional receptor / transporter atlas prior, ligand-limited occupancy proxy, challenge-limited displacement / release proxy, macro 1H-MRSI biochemical similarity scaffold, high-resolution 1H-MRSI metabolite-distribution proxy, macro 31P metabolite / pH balance proxy, macro 31P MT exchange-flux proxy, macro 31P NAD-content map proxy, localized functional 31P NAD-dynamics proxy, macro deuterium metabolite-mapping / absolute-quantification proxy, macro deuterium kinetic-rate proxy, quantity-defined macro ionic proxy family, macro thermal / perturbation-conditioned thermal proxy family, quantity-defined macro-myelin proxy family, macro BBB water-exchange / tracer-specific transport proxy family, target-defined astrocyte-related proxy, perturbation-conditioned plasticity proxy, and macro clearance-transport proxy family. Human-side evidence is therefore not submitted as one generic “maintenance signal.” Each route must be class-labeled before the claim ceiling is interpreted, and it must also disclose its calibrator role, meaning which hidden-state family it safely constrains rather than merely co-occurs with.

2026-03-20 addendum: causal relevance and human observability must be bridged, not fused

This site now keeps two axes separate when a maintenance-state claim cites both animal causal work and human proxy work. Hadzibegovic et al. (2025) and Terceros et al. (2026) strengthen controller-state and transcriptional-stabilization causality in rodents, while Zrenner et al. (2018), Hirschler et al. (2025), Lim et al. (2025), and Dagum et al. (2026) strengthen perturbation-conditioned excitability or macro clearance-transport observability in humans. These are not the same inferential step. Therefore, when a submission combines them, it must state which state family the causal paper makes relevant, which human evidence class / proxy class was actually observed, which bridge assumptions remain unvalidated, and which local controller remains latent. Without that bridge disclosure, this site does not promote the result to measured human maintenance-state control. The longer composition rule is now anchored in Wiki: Human Proxy Composition.

2026-03-19 addendum: MRSI metabolic connectome is a similarity graph, not a flux map

Lucchetti et al. (2025) defined the human metabolic connectome as pairwise correlations among five metabolites across gray-matter parcels and reported only weak overall alignment with tractography-based structural connectivity. Bhogal et al. (2020), Wright et al. (2022), and Baboli et al. (2024) show why this route still needs a measurement-model audit: MRSI interpretation depends on SNR, partial-volume / lipid handling, and voxel-specific correction or tissue-water modeling. Therefore, on this site, an MRSI-derived metabolic connectome is read as a macro-biochemical similarity scaffold unless the submission names the metabolite set, parceling unit, correction model, spectral QC thresholds, and whether the object is static similarity, high-resolution metabolite-distribution mapping, or dynamic kinetic rate imaging. If the claim is about glucose-flux or rate mapping, the route must be audited separately against rate-imaging methods such as Li et al. (2025).

2026-03-27 addendum: spectroscopy-derived human routes are not one proxy row

The remaining compression problem was to let ``human spectroscopy'' carry the claim. The primary literature does not support that shortcut. Lucchetti et al. (2025) constrained a five-metabolite parcel-similarity scaffold, Guo et al. (2025) constrained high-resolution 1H-MRSI metabolite-distribution maps under explicit reconstruction and artifact-control burden, Ren et al. (2015) constrained resting ATP synthesis, phosphorus metabolites, and pH balance with 31P-MRS in 12 healthy participants, Ren et al. (2017) constrained PCr→γ-ATP and Pi→γ-ATP exchange flux with a band-inversion / MT 5-pool model, Guo et al. (2024) constrained whole-brain intracellular NAD content at 7 T, Kaiser et al. (2026) constrained task-evoked NAD+ dynamics in a functionally localized human occipital voxel, Karkouri et al. (2026) constrained absolute deuterated metabolite maps with a dedicated absolute-quantification pipeline, and Li et al. (2025) constrained glucose-transport and kinetic-rate maps under a blood-input kinetic model. These are not the same inferential object. Bhogal et al. (2020), Wright et al. (2022), Baboli et al. (2024), and Guo et al. (2025) further show that even metabolite-map formation itself depends on lipid suppression, tissue-fraction correction, water / relaxation modeling, ghosting, aliasing, and low-SNR handling. Therefore, when a submission cites human spectroscopy here, it must state whether the route is 1H-MRSI similarity, high-resolution 1H-MRSI metabolite-distribution mapping, 31P metabolite / pH balance, 31P MT exchange-flux, 31P NAD-content mapping, 31P functional NAD-dynamics, deuterium metabolite-mapping / absolute quantification, or deuterium kinetic-rate imaging, together with cohort size, hardware burden, and model burden. Without that split, this site does not promote the route beyond a coarse human proxy note.

Minimum operating rules

If this budget is missing, this site allows at most same-session fit, cross-day performance with unresolved maintenance route, or support-proxy-aligned evidence. It does not promote the result to maintenance-consistent, reconsolidation-consistent, or remote-memory-relevant. In particular, if phospho-signaling / second-messenger state, sleep / wake history, sleep architecture / replay-coupling state, timing support, thermal-state, ionic / chloride state, bioenergetic support, cargo-transport / cytoskeletal trafficking support, glial substrate-routing, astrocyte-state, and clearance / immune proxy class are all absent, this site stops the reader from rephrasing a temporal hold as long-horizon maintenance evidence.

2026-03 addendum: attach a Specificity & Shortcut Card to decode / biomarker results

The weakness that became clearer in the re-audit was that the Observability Budget can say what entered the sensor, but by itself it cannot fix whether predictive information came from the target neural variable or from shortcut routes such as eye movement, EMG, uninstructed movement, report paths, auditory feedback, subject / session fingerprint, or acquisition-distribution cues carried by site / device / reference / electrode layout. Musall et al. (2019) showed that neural dynamics during task can be strongly dominated by uninstructed movements, Mostert et al. (2018) showed that visual-working-memory decode can retain an eye-movement confound even under attempted fixation, Muthukumaraswamy (2013) summarized the overlap between high-frequency EEG/MEG and muscle artifact, McFarland et al. (2005) showed that EMG can boost early BCI-session performance, and Chen et al. (2024) showed that post-onset auditory feedback can inflate offline speech-decoding scores. For that reason, this site now requires an independent deliverable that fixes not only "there is information" but also "which route that information came from."

Specificity & Shortcut Card field What must be written at minimum What goes wrong if it is omitted
target variable / intended causal path Fix in one line what you want to read, such as motor intention, stimulus category, memory content, state marker, or speech intent, together with the intended signal path. Task labels, behavioral output, device state, or session fingerprint become easy to confuse with the target neural variable.
plausible nuisance routes List the main alternative routes, such as EOG, facial / jaw / neck EMG, button press, posture / body movement, speech motor output, auditory feedback, report path, cue timing, and acquisition-distribution cues such as device / impedance / session fingerprint, reference system, electrode layout, and protocol differences. The explanation of a high score collapses to one favored story and the shortcut hypothesis cannot be audited later.
nuisance observables / auxiliary channels State whether EOG / EMG, audio, video / motion capture, button / force, pupil / gaze, impedance / hardware logs, channel-map / reference / sample-rate / filter logs, and stimulus / feedback logs exist and how they are used. The paper can stop at saying it "paid attention" to nuisances without leaving measured audit traces behind.
nuisance-only / nuisance-matched baselines Report which of EOG-only, EMG-only, video / behavior-only, audio-only, no-brain, LM-only, feedback-on/off, time-shuffle, or label-preserving nuisance-match baselines were used. You cannot separate prediction gain coming from target-neural information from gain that can be reproduced by auxiliary routes alone.
fingerprint / acquisition-distribution audit / independence unit Report raw-recording ancestry, whether windows / epochs cut from the same recording ever cross train/test, subject / session / site / device / reference-system / electrode-layout disjointness, metadata-only baselines, harmonization logs, and identity classifiers. A diagnosis or state-decode score can be driven only by who, when, where, or under which recording setup the data was acquired, and that failure would remain invisible.
slice-wise hold-out across nuisance regimes Report whether evaluation was split across low/high movement, fixed gaze/free viewing, silent/overt, feedback on/off, device/session/subject/reference/protocol hold-out, artifact-burden slices, and state slices. In-distribution success is too easily misread as target-specific evidence that survives when nuisance conditions change.
countermeasure / perturbation check Report whether fixation enforcement, EMG suppression, masking / sham, feedback removal, cue scrambling, behavior-matched controls, or dedicated countermeasure tasks were used to break shortcut routes. Even when the same output can be reproduced through a different route, the reader may still leap to the target-causal interpretation.
residual shortcut gap / claim ceiling Fix in one line which nuisance routes remain unaudited, what shortcut possibilities still remain, and which ceiling this result is allowed to reach. Exploratory decode or behavior-linked biomarkers are too easily mispromoted to target-specific neural readouts or mechanistic markers.
2026-03-18 addendum: subject / session fingerprint is an independent shortcut family

Chaibub Neto et al. (2019) showed that diagnostic learning can absorb subject characteristics when repeated measures are not participant-disjoint, while Wang et al. (2020) and Di et al. (2021) showed that resting-state EEG alone can support accurate, time-robust person identification. Gibson et al. (2022) further summarized strong subject-driven components in EEG variability. For that reason, this site treats subject / session fingerprint as a shortcut family on the same level as movement or EMG, and fixes independence unit plus metadata-only baselines as separate required fields.

2026-04-04 correction: acquisition-distribution shortcut needs a recording-frame contract

The older rule correctly treated acquisition distribution as independent from subject fingerprint, but it still left one scientific shortcut open: it let readers imagine harmonization as one generic cleanup step. The official EEG-BIDS specification already separates electrodes, channels, coordinate system, and reference scheme. Hu et al. (2018) showed that reference montage and electrode setup alter the measured scalp potential itself, Melnik et al. (2017) showed that EEG differences arise from system as well as subject and session, Xu et al. (2020) showed that cross-dataset EEG decoding is degraded by environmental variability such as amplifier, cap, sampling rate, and filtering, and Dong et al. (2024) validated an explicit REST-based transformation route for channel-location harmonization with high correlation rather than identity by default. For that reason, this site treats site / device / reference system / electrode layout / coordinate route / protocol distribution as a shortcut family on the same level as subject fingerprint, and it also requires the recording-frame contract: original channel map, coordinate route or template, raw reference plus rereference family, omitted/interpolated-channel policy, and the named harmonization branch. Inference from these sources: common-channel intersection, interpolation to a target montage, and REST / another explicit transform are different translation branches and do not justify one generic `harmonized EEG` claim.

2026-03-18 addendum: the Neural Contribution Card is the language-specific version of this general card

The Specificity & Shortcut Card is the general form that covers motor, memory, biomarker, speech, and related decode settings. The Neural Contribution Card is its language-specific specialization for text / speech / generative reconstruction settings, where language priors, candidate sets, prompts, vocoders, and causal deployment guards become dominant. In speech / brain-to-text work, the general shortcut audit is therefore stacked together with the Neural Contribution Card.

Minimum operating rules

If this card is missing, this site treats the result by default as exploratory decode, behavior-linked biomarker, or nuisance-unresolved classification, and does not promote it to a target-specific neural readout, mechanistic biomarker, or deployable controller. In particular, if any of plausible nuisance routes, nuisance-only baselines, fingerprint / acquisition-distribution audit / independence unit, or slice-wise hold-out is missing, this site stops the reader from rephrasing the result as "we learned what this variable means."

How this differs from the existing cards

The Observability Budget fixes what was directly observed. The Specificity & Shortcut Card fixes which route the predictive information came from. The Temporal Validity Card fixes how far the result can be extrapolated across time, the Calibration & Abstention Card fixes what confidence and fallback mean, and the Intervention Card fixes what was actually changed. On this site, decode / biomarker results therefore submit shortcut audit separately instead of mixing "the sensor contains information" with "the information is target-specific."

2026-03-25 addendum: attach a Neural Contribution Card to brain-to-text and speech-decode results

The remaining weakness after the Specificity & Shortcut Card was that language-facing results could still be overread from output fluency alone. The primary literature does not support that shortcut. Tang et al. (2023) showed subject-cooperative semantic reconstruction from within-subject fMRI, Défossez et al. (2023) showed 3 s speech-segment identification from non-invasive M/EEG with predictions dominated by lexical and contextual representations, d'Ascoli et al. (2025) scaled known-word-onset decoding to 723 participants and five million words while still finding MEG > EEG, reading > listening, and strong gains from more training data and test averaging, and Ye et al. (2025) showed that prompt-conditioned fMRI-to-LLM generation beats a permuted-brain control while remaining strongly conditioned by prompt length, LLM scaffold, and the difficulty of no-prompt generation. Therefore, this site now requires a language-specific card before a text / speech output is read as neural reconstruction rather than a mixture of task structure, priors, and brain-derived contribution.

Neural Contribution Card field What must be written at minimum What goes wrong if it is omitted
task regime / direct observable Name whether the route is perceived speech, read words, imagined speech, silent-video semantics, attempted speech, or overt speech, and name the measurement stack plus directly observed quantity. Perception-heavy, production-heavy, and subject-cooperative semantic routes collapse into one fake category called "brain-to-text."
timing / segmentation regime State whether evaluation used known word onset, fixed multi-second segments, TR-sized fMRI windows, prompted continuation windows, or free-running onset detection, together with the retrieval set or generation unit. Known-onset word decoding or segment retrieval is easily misread as unconstrained free-form language readout.
prior scaffold / prompt budget Report the language model, pretrained speech / text representation, candidate set, beam search or retrieval bank, prompt length, vocabulary, and whether generation depended on external text context. Fluent output can be misread as brain-only content recovery when much of the structure came from the prompt, candidate bank, or pretrained language prior.
brain-minus-prior baselines Report which of no-brain, permuted-brain, LM-only, prompt-only, candidate-only, time-shuffle, or no-text-prompt baselines were used and what changed under each. The reader cannot tell whether the brain signal added target-specific information or merely nudged an already strong prior.
subject route / cooperation / countermeasure State whether the model is within-subject, cross-subject, multi-participant with subject-specific adaptation, or zero-shot to unseen participants, and disclose any cooperation requirement, resistance / countermeasure test, or calibration burden. Participant-specific or cooperation-dependent performance is too easily rephrased as general thought reading.
modality / protocol asymmetry Disclose recording device, task format, onset certainty, training-data volume, per-subject depth, and any averaging at test time, especially when performance differs across MEG versus EEG or reading versus listening. A score looks like a property of "language decoding" rather than a property of one protocol with one measurement advantage.
online / abstention / latency route State whether the result is offline reranking, batched generation, closed-loop streaming, or real-time synthesis, and report abstention / silence behavior, tail latency, and recalibration burden when relevant. An offline or short-horizon communication result is too easily misread as a deployable continuous interface.
communication route type / temporal claim For invasive language or speech BCIs, state whether the paper supports same-session throughput / expressivity, cross-subject transfer initialization, a bounded fixed-decoder slice, or adaptive rescue; report any no-new-day-training comparator, subject-specific fine-tuning, and time since last supervised calibration that defines that route. Communication-route papers collapse into one fake ladder from output quality to participant-invariant durable decoding.
stopped claim / residual ceiling Write in one line which unresolved routes remain, such as prompt dependence, candidate-bank dependence, known-onset dependence, cooperation dependence, modality asymmetry, or lack of intervention validation, and state the highest claim ceiling allowed. "A sentence came out" is silently promoted to unrestricted thought reading, internal-state identification, or WBE-relevant reconstruction.
Open-vocabulary and generative are not one solved category

This site now separates at least four non-invasive language routes: within-subject semantic reconstruction, segment retrieval from a fixed candidate bank, known-onset word decoding, and prompt-conditioned generation. They improve different objects. Tang (2023) does not fix word-level timing. Défossez (2023) does not remove the candidate-segment structure. d'Ascoli (2025) does not remove known onsets or protocol asymmetry. Ye (2025) does not remove prompt / LLM dependence. Therefore, "open-vocabulary" or "generative" is not accepted here as a shortcut for unrestricted neural language readout.

Invasive language BCIs are not one temporal-validity route either

The same caution now applies to invasive communication papers. Willett et al. (2023), Littlejohn et al. (2025), and Wairagkar et al. (2025) support different throughput / expressivity routes under bounded output contracts. Singh et al. (2025) supports a separate cross-subject transfer-initialization route. Karpowicz et al. (2025) and Wilson et al. (2025) support adaptive rescue / recalibration under accumulating neural change. On this site, those papers do not share one durability claim by default.

Minimum operating rules

If this card is missing, this site treats the result by default as task-conditioned language decode, prior-assisted reconstruction, or communication-subsystem evidence, not as unrestricted thought reading, unique internal-state identification, or WBE-relevant state capture. In particular, if timing / segmentation regime, prior scaffold / prompt budget, brain-minus-prior baselines, or subject route / cooperation / countermeasure is missing, this site stops the reader from rephrasing the result as "the brain content itself was read out."

2026-03-20 addendum: attach a Pretraining Card to foundation / self-supervised EEG results

The remaining weakness after adding the Observability Budget and the Specificity & Shortcut Card was that large EEG pretraining results could still be reported as if an ordinary model card were enough. The recent primary literature and current benchmark operations do not support that shortcut. Kostas et al. (2021) framed transfer across unseen datasets, hardware, subjects, and tasks as the core challenge rather than as a solved default. Jiang et al. (2024) explicitly listed electrode mismatch, unequal length, varied task design, and low SNR as central EEG-side barriers even while reporting strong LaBraM performance. Lee et al. (2025) then reported only marginal gains, about 0.5%, over conventional deep baselines despite much larger parameter counts, while showing that PEFT can sharply reduce trainable parameters without degrading performance. El Ouahidi et al. (2025) pushed toward setup-agnostic pretraining at unprecedented corpus scale, but Lahiri et al. (2026) and Liu et al. (2026) then showed that narrow-source versus diverse-source pretraining, linear probing versus fine-tuning, and specialist-from-scratch baselines can still reverse the reading of which representation transferred "better." Xiong et al. (2025) argued that inconsistent protocols still make cross-model EEG-FM comparisons unreliable. The official EEG Challenge 2025 data page additionally shows that one public benchmark family can already mix six distinct cognitive tasks with subject-level psychopathology dimensions, so benchmark name alone does not fix the supervised object. The official submission page further fixed this as an inference-only code competition, and the final leaderboard later disclosed that Challenge 2 samples had not been randomized, allowing some teams to exploit contiguous-trial same-subject structure and forcing the organizers to award Challenge 1 and Challenge 2 separately. In parallel, Brookshire et al. (2024), Chaibub Neto et al. (2019), Melnik et al. (2017), and Xu et al. (2020) show that raw-window ancestry, participant identity, and recording-distribution structure can each move EEG results through different routes. Therefore, this site now requires a Pretraining Card for foundation / self-supervised EEG submissions in addition to the standard model card, and it no longer treats overlap audit as a single yes/no field.

Pretraining Card field What must be written at minimum What goes wrong if it is omitted
corpus identity / overlap audit Name the pretraining corpus, version or snapshot, total hours, exclusions, and a multi-axis overlap audit covering raw-recording / window ancestry, subject / session ancestry, site / device / reference-system / electrode-layout ancestry, task / label / benchmark-object ancestry, and any extra-data or pretrained-checkpoint ancestry. What looked like transfer can still be silent reuse of the same recording family, person, setup, task object, or benchmark lineage.
population / setup diversity Report covered population, device families, clinical vs. lab setting, electrode schema, and reference-system distribution. The number of datasets can be misread as recording diversity even when the corpus is narrow or setup-biased.
harmonization policy Report channel mapping, electrode-coordinate route or template, reference family, whether comparison used common-channel intersection, interpolation to a target montage, REST / another explicit transform, or no cross-setup harmonization, plus sample-rate conversion, token length, normalization, and missing / omitted / interpolated-channel or segment policy. Recording-frame translation can be misread as physiology-preserving model capability.
objective / inductive bias Name the pretraining objective, such as masked, autoregressive, contrastive, tokenizer-based, or reconstruction-heavy, and the major architectural prior. The reader cannot tell whether the gain came from scale, objective choice, or domain-specific prior.
adaptation regime State whether the downstream regime is frozen, linear-probe, PEFT, full fine-tune, or test-time training, together with target-data usage and label budget. A heavily adapted result can be misread as clean zero-shot or general transfer.
benchmark object / supervision unit State whether the downstream object is window / trial classification, event detection, sequence labeling, subject-level regression / diagnosis, retrieval / ranking, or another family, together with label provenance, output family, metric bundle, and what counts as one independent prediction. Results from different prediction objects can be silently compressed into one "generalization" story even though they do not share the same error surface or claim ceiling.
benchmark provenance Name the benchmark, version, split rule, sample-randomization / hidden-grouping policy, checkpoint-selection rule, segment length, preprocessing path, external hold-out construction, and any inference-stage compute or training restrictions. Ranking changes driven by benchmark design can be misread as stable model superiority.
shortcut-resistance / specificity bridge For any downstream decode / biomarker / clinical claim, state participant / site / device / reference disjointness, metadata-only or subject-ID baselines where relevant, shortcut slices, nuisance-route checks, and the linked Specificity & Shortcut Card. A transfer win can be misread as target-variable invariance even when the representation is still exploiting identity or recording-distribution shortcuts.
scale / efficiency Report total parameter count, trainable fraction, pretraining steps or epochs, training time, adapter size, and inference cost. "The large model won" can hide that the real driver was compute allocation or parameter-efficient adaptation.
evaluation family / stop line Report hold-out unit, device / site hold-out, cross-day evaluation, abstention or fallback behavior, and a one-line stopped claim stating what still cannot be asserted. A same-day benchmark win can be misread as deployability, source identifiability, or WBE-relevant state capture.
2026-04-04 correction: overlap audit is multi-axis, not a single yes/no field

The older wording on this card was directionally right but still too compressible. Current primary and official sources do not support treating overlap as one box. Brookshire et al. (2024) show that segment-based evaluation can leak subject information through raw-window ancestry, Chaibub Neto et al. (2019) show that repeated-measure diagnostic learning can absorb subject characteristics, Melnik et al. (2017) and Xu et al. (2020) show that device / setup distribution is a separate variance source, Jiang et al. (2024) and El Ouahidi et al. (2025) show that layout heterogeneity remains a live model-design problem, and the official EEG Challenge data, submission, and leaderboard pages together with Xiong et al. (2025) and Liu et al. (2026) show that benchmark object, operations budget, and protocol choices can all move rankings. Therefore, this site now treats overlap as a set of distinct ancestry axes rather than as one binary disclosure.

Ancestry axis What must be disclosed separately Misread blocked on this site
raw-recording / window ancestry Whether windows, segments, or near-duplicate crops from the same raw recording, release, or derivative chain appear across pretraining, validation, and downstream evaluation. Segment reuse is read as transfer to unseen data.
subject / session ancestry Whether the same participant, day, session, or repeated measurement appears on both the pretraining and downstream sides, and what the true grouped hold-out unit is. Subject fingerprint is read as subject-independent representation.
site / device / reference / layout ancestry Whether overlap persists at the level of site, amplifier, cap, reference family, electrode geometry, coordinate template, or preprocessing lineage, and whether gains survive setup-disjoint slices. Layout tolerance or reference absorption is read as physiology-preserving invariance.
task / label / benchmark-object ancestry Whether the downstream side reuses the same task family, event ontology, response structure, or subject-level target type, so the supervised object is genuinely new rather than relabeled. Re-encountering the same supervised object is read as universal EEG generalization.
benchmark-operations ancestry Whether extra-data policy, pretrained-checkpoint policy, split / randomization, hidden grouping, checkpoint selection, inference-only or no-training rules, memory budget, and organizer postmortems are frozen together. Benchmark-specific rule changes are read as stable model superiority.
Official rules are not capability proof, but they are evidence of what comparability already requires

The EEG Challenge rules do not prove that any one model is best. They do something different and still important: they show that current operations already need pretraining-data disclosure, pretrained-model disclosure, and fine-tuning disclosure before a leaderboard is even interpretable. The later leaderboard postmortem sharpened the same point by showing that sample randomization and hidden grouping structure can change what the leaderboard was measuring at all. On this site, that operational lesson is promoted from benchmark-specific documentation to a general audit rule.

Minimum operating rules

If this card is missing, this site treats the result by default as qualified representation-learning / decoding evidence, not as portable transfer evidence, deployable robustness, source-identifiable recovery, or WBE-relevant state capture. In particular, if corpus identity / overlap audit is not split into raw-recording / window, subject / session, site / device / reference / layout, task / benchmark-object, and benchmark-operations ancestry, or if harmonization policy, adaptation regime, benchmark object / supervision unit, benchmark provenance including split randomness / hidden grouping, or the shortcut-resistance bridge to the Specificity & Shortcut Card is missing, this site stops the reader from rephrasing the result as "generalization is solved."

How this differs from the existing cards

The Observability Budget fixes what the sensor directly observed. The Specificity & Shortcut Card fixes which route predictive information came from. The Pretraining Card fixes what part of the reported transfer came from corpus composition, harmonization, adaptation, benchmark object, benchmark design, and compute allocation. The Temporal Validity Card then fixes how far the result can be extrapolated across time. On this site, a foundation-model result needs all of these boundaries kept separate, because a setup-agnostic or benchmark-winning representation is still not automatically shortcut-resistant.

State variable integrity gate

The remaining weakness in this gate was not the absence of latent-state language, but that the table still compressed families that the rest of this site already audits separately. The current public rule is narrower. After a wiring diagram, this site still separates cell-type label, current synaptic efficacy / short-term state, nineteen maintenance-state families, and a separate shared extracellular / electrical-state class. In particular, it no longer collapses relative excitability into firing-rate recovery, sleep / wake renormalization into sleep architecture / replay-coupling, myelin / oligodendrocyte timing support into one scalar delay, mixed arousal proxy into transmitter-specific state, vascular-state / CVR audit into neurovascular-unit / BBB / pericyte state, glial substrate-routing into astrocyte-state, or astrocyte-state into clearance / immune support. Therefore, on this site, edge-list submissions alone do not pass L2 or above, and any claim that depends on one of these families has to measure it, perturb it, externally calibrate it, or leave it explicitly latent.

State family What remains variable Shortcut to block Ceiling if unmeasured
Cell type label Even on similar adjacency graphs, different transcriptomic classes can carry different binding motifs, synaptic properties, and myelination tendencies. If the graph is known, functional identity is almost fixed too. Structural atlas or candidate scaffold only; not a sufficient condition for functional reproduction.
Current synaptic efficacy / short-term state Release probability, release-site number, active-zone nanostructure / priming-site assembly, receptor state, short-term depression / facilitation, and recent activity history still vary on the same edge list. If an edge exists, the current synaptic state is already fixed. Static wiring or atlas language only; not intervention, phase, or stability-complete claims.
Relative excitability / allocation bias Which neurons are more likely to win allocation or show memory-linked firing gain can still change on the same graph and cell-type background. If cell type matches, allocation bias is already fixed. Same-session fit only; allocation and engram-bias claims remain latent or species-limited.
AIS / ion-channel configuration Threshold, gain, rebound, AIS geometry, and channel distribution remain variable even when graph and cell type are held fixed. A short activity record already fixes the same input-output rule. No direct response-law or perturbation-generalization claim without local assay or explicit abstention.
Firing-rate set point / recovery controller Where activity returns after perturbation, with what time constant, and through which compensatory route remains another variable. If the average firing rate returned, the internal controller returned too. Cross-day, recovery, and long-horizon maintenance claims remain limited without a degradation / recovery log.
Activity-dependent transcription / chromatin / epigenetic state Allocation eligibility, late stabilization programs, and locus-specific plasticity rules can still differ over hours to weeks on the same graph and cell-type background, and the measured object may be accessibility, histone chemistry, DNA-methylation control, higher-order looping, or locus editing rather than one generic epigenetic row. A static atlas label, one-shot DEG list, or one epigenetic assay already fixes the current plasticity-competent program. Identity / context or single-object clue only; memory-stabilization controller remains latent unless temporal or causal evidence is shown.
Post-transcriptional RNA-state Isoform choice, m6A-dependent translation / degradation, and RNA-editing ratios can still change receptor composition and maintenance behavior on the same gene-count background. Gene-level transcript abundance already fixes isoform, m6A, and RNA-editing control. Keep RNA-state explicit as latent, perturbed, externally calibrated, or isoform-resolved.
Phospho-signaling / second-messenger state Phosphosite occupancy, kinase/phosphatase balance, and compartment-specific signaling nanodomains can still change plasticity expression on the same transcript or bulk-protein background. Transcriptomics, proteomics, or nominal weights already fix the active phospho-controller. Keep phospho-signaling explicit as latent, perturbed, externally calibrated, or phosphosite-resolved.
Sleep / wake renormalization When synaptic, phospho, and network regimes are reset or accumulated across wake and sleep remains another maintenance variable. Similar wake activity or same-day decode means the next-day maintenance route was also matched. Cross-day stability remains unresolved if sleep-state and overnight recovery are unmeasured.
Sleep architecture / replay-coupling state Slow oscillation, spindle, ripple, sleep-integrity burden, and consolidation-permissive NREM physiology can still differ even when sleep occurred. A night of sleep, a cue, or boosted oscillations already fixes the consolidation mechanism. Overnight retention or TMR gain remains replay-blind or proxy-bounded if architecture, sleep continuity, and physiology-gating are unmeasured.
Myelin / oligodendrocyte timing support Conduction velocity, node / internode geometry, periaxonal structure, and axonal support can still alter phase and synchrony on the same graph. Delay can be absorbed into one scalar constant. Timing-sensitive and long-term recovery claims remain proxy-bounded without explicit timing-support audit.
Local proteostasis / synaptic-tagging state Tagged branches can still differ in PRP capture, translation / degradation / autophagy balance, and late stabilization under turnover. Current weight or transcriptomic program already fixes the late-stabilization route. Late stabilization, reconsolidation, and cross-event capture remain latent without a tag / proteostasis route.
Cargo-transport / cytoskeletal trafficking state Receptors, endosomes, RNA cargoes, mitochondria, and presynaptic components can still be delivered or retained differently across branches, spines, and boutons. Local translation or ATP support already implies correct compartmental delivery. Compartment-specific stabilization and synaptogenesis remain latent without explicit cargo-route evidence.
Perisynaptic ECM / PNN state Matrix organization can still change receptor mobility, inhibitory plasticity, memory-update resistance, and adult plasticity windows on the same synapse graph. Synapse count or weight already fixes the stabilization gate. Adult plasticity and stabilization claims remain limited if ECM / PNN state is left latent.
Ionic milieu / chloride homeostasis Local chloride set point, transporter state, and extracellular ion composition can still change inhibitory sign, gain, rhythm stability, and state transitions. Graph, cell type, and nominal weights already fix inhibitory polarity and rhythm regime. Inhibition-sign and state-transition claims remain limited unless ionic / chloride state is measured, perturbed, or externally calibrated.
Thermal-state / tissue operating temperature Regional tissue temperature and local heating burden can still shift membrane kinetics, field-potential amplitude, and sequence timing without rewiring. Once graph and timing proxy are known, temperature is just fixed background. Field-potential, membrane-kinetic, and sequence-timing claims remain limited if thermal-state is unmeasured.
Neuromodulatory specificity / transmitter context Mixed arousal proxy, local transmitter signal, receptor-family prior, ligand occupancy, and challenge-limited release route are different inferential objects. Pupil, HRV, or one behavior-state covariate already fixes transmitter-specific internal state. Keep the result at covariate, regional prior, or ligand-limited proxy level rather than whole-brain neuromodulatory ground truth.
Bioenergetic / mitochondrial state Local ATP supply, mitochondrial positioning, fission / fusion, ATP-synthase organization, and redox reserve remain another constraint layer. Generic metabolic or glial proxy already fixes local neuronal energy state. Repeated-burst reliability, dendritic plasticity, and energetic mechanism claims remain latent without explicit bioenergetic audit.
Neurovascular-unit / BBB / pericyte state Capillary recruitment / tone, BBB permeability / transport regime, and endothelial / pericyte controller state can still differ on the same graph and cell-type background. A vascular-state / CVR audit, resting perfusion covariate, or one hemodynamic nuisance check already fixes the biological controller. Human evidence stays at macro BBB water-exchange or tracer-specific transport-model proxy level; local pericyte / endothelial controller claims remain latent unless directly measured or perturbed.
Glial metabolism / substrate routing Supplier cell, fuel object, carrier, and transport route can still differ across lactate, ketone-body, fatty-acid, and apoE / sortilin-dependent support regimes on the same graph and cell-type background. A generic metabolic or astrocyte proxy already fixes the active glial fuel route. Memory-support and nutrient-regime claims remain limited unless glial substrate-routing is measured, perturbed, or left explicit as latent.
Astrocyte ensemble / network state Astrocyte network and ensemble state can causally influence local transmitter integration, recall, multiday stabilization, and fear-state representations. A neuronal engram fit or glial metabolic proxy already fixes the relevant astrocyte-state. Recall, reconsolidation, and long-horizon stability stay partial-model claims unless astrocyte-state is measured, perturbed, or left explicit as latent.
Clearance / immune support Meningeal lymphatic drainage, CSF-interstitial exchange, microglia-linked support, and protein / metabolite clearance remain another multiday support layer. Clearance is passive housekeeping unrelated to maintenance consistency. Human evidence stays transport-side macro proxy or target-defined neuroimmune PET proxy; local immune-controller or synaptic-maintenance claims remain latent.
Shared extracellular / electrical state Gap-junction coupling, endogenous electric fields, and local inhibitory driving force can still change fast synchrony, oscillatory coordination, and state-switch thresholds. Chemical connectome plus nominal inhibition already fixes the electrical regime. Fast synchrony and oscillatory-coordination claims remain limited unless electrical-state is measured, perturbed, or externally calibrated.
Practical rules here

connectome-complete does not mean emulation-complete. This gate now mirrors the site's current public taxonomy: a connectome can be augmented by cell labels, synaptic snapshots, or one proxy route without closing the nineteen maintenance-state families or the separate shared electrical-state class. The detailed route-card rules for transcription, RNA, phospho-signaling, intrinsic excitability, sleep, myelin, ECM, ionic, thermal, neuromodulatory, bioenergetic, neurovascular / BBB, cargo, glial substrate-routing, astrocyte, clearance, and proteostasis live in Wiki: Homeostatic plasticity and maintenance state; the separate electrical-state rule lives in Wiki: electrical-state route card.

2026-03-27 addendum: vascular transfer audit is not neurovascular support-state audit

The remaining weakness was that a clean hemodynamic nuisance audit could still be misread as if the biological support layer were solved too. The primary literature does not support that shortcut. Bell et al. (2010), Kisler et al. (2020), Pandey et al. (2023), Swissa et al. (2024), and Mai-Morente et al. (2025) separate pericyte / BBB controller biology from measurement-side vascular transfer, while the current human routes already split further: Padrela et al. (2025) is a multi-echo ASL water-exchange route whose gray-matter age effect disappears after CBF / ATT correction, Morgan et al. (2024) showed that DP-ASL and ME-ASL can yield substantially different BBB water-exchange values and inconsistent age dependence, mouse work by Ohene et al. (2019) showed that multi-TE ASL exchange time is sensitive to AQP4 loss at the blood-brain interface, Padrela et al. (2026) showed lower Tex in SCD / MCI and moderate WMH burden while amyloid-group differences did not survive age / sex adjustment, and Chung et al. (2025) is a tracer-specific PET permeability-surface-area route with no human ground-truth validation yet. Therefore, this site now blocks the move from vascular-state / CVR audit passed to neurovascular support matched unless the biological route itself is named, measured, perturbed, or left explicitly latent, and it also blocks the move from human BBB proxy exists to a generic BBB-permeability meter exists unless the quantity type, carrier, and dominant transport interpretation are named explicitly.

2026-03-25 addendum: this gate now follows family-specific primary literature

The correction here is evidence-driven, not editorial. Hengen et al. (2016) distinguishes firing-rate recovery control from other excitability routes, Whitmore et al. (2022), Baxter et al. (2023), Schreiner et al. (2023), Schreiner et al. (2024), Whitmore et al. (2024), and Deng et al. (2025) distinguish sleep architecture / replay-coupling from sleep duration alone and also separate sleep continuity, physiology gating, and memory-age dependence from one generic replay label, Seidl et al. (2015) and Cohen et al. (2020) distinguish myelin / periaxonal timing support from one scalar delay, Reimer et al. (2016) and Hansen et al. (2022) distinguish mixed arousal proxies from transmitter-specific priors, Rzechorzek et al. (2022) keeps thermal-state separate from generic timing or vascular covariates, Rangaraju et al. (2019) distinguishes local bioenergetic / mitochondrial support from generic glial background, and Louveau et al. (2015), Kim et al. (2025), Hirschler et al. (2025), and Dagum et al. (2026) distinguish clearance / immune support from astrocyte-state and from direct local neural readout. Therefore, this page no longer compresses these families into umbrella rows such as intrinsic excitability/homeostasis/maintenance state or neural modification field.

2026-03-18 addendum: cell-type atlas is not current transcriptional state

Santoni et al. (2024) showed that chromatin plasticity predetermines neuronal eligibility for memory-trace formation, Traunmüller et al. (2025) showed temporally defined and region-specific chromatin / gene-expression changes after novel-environment exposure, Coda et al. (2025) showed cell-type- and locus-specific epigenetic editing of memory expression, and Terceros et al. (2026) showed distinct thalamocortical transcriptional gates for memory stabilization. Therefore, when a claim depends on allocation eligibility, late stabilization, or locus-specific plasticity, this site asks authors to disclose whether transcriptional / chromatin state was measured, perturbed, externally calibrated, or left latent.

2026-03-25 addendum: intrinsic-excitability evidence also needs a route card

The remaining weakness was that allocation / engram-excitability papers, homeostatic set-point papers, human local clinical-unit evidence, and living-human perturbation-conditioned plasticity proxies could still be compressed into one bucket called intrinsic-excitability evidence. The primary literature does not support that shortcut. Hadzibegovic et al. (2025) is about early intrinsic-excitability plasticity of neocortical engram neurons, Hengen et al. (2016) is about firing-rate homeostasis and recovery control across sleep / wake, Tallman et al. (2025) is a human hippocampal single-unit allocation-linked route whose encoding firing increase remains an indirect excitability index, and Huber et al. (2013), Kuhn et al. (2016), Khatri et al. (2025), Fehér et al. (2026), plus Zrenner et al. (2018) remain living-human perturbation-conditioned proxy routes rather than direct readouts of AIS geometry, ion-channel distribution, or cell-specific recovery controllers. On this site, intrinsic-excitability claims therefore have to disclose claim family, physiological locus, direct observable, time axis / intervention window, human evidence class / proxy class, and abstention boundary before any claim ceiling is raised. The full operating rule is summarized in Wiki: intrinsic excitability / homeostatic-set-point route card.

2026-03-19 addendum: transcription / chromatin evidence also needs a route card

The remaining weakness was that allocation eligibility, time-resolved response map, persistent stabilization cascade, and locus-specific causal editability could still be compressed into one bucket called transcriptomic evidence, while chromatin accessibility, histone-acetylation / histone-methylation control, DNA-methylation stabilization, higher-order looping, and locus-specific editing could still be compressed into one bucket called epigenetic evidence. The primary literature does not support either shortcut. Santoni et al. (2024), Guan et al. (2009), Gulmez Karaca et al. (2020), Bharadwaj et al. (2014), Coda et al. (2025), and Terceros et al. (2026) constrain different objects again. On this site, such claims now have to disclose claim family, molecular object family, species / region / task, sampling windows, assay and direct observable, animal-level independence / pseudoreplication handling, human observability ceiling, causal perturbation status, and abstention boundary. The full operating rule is in Wiki: transcription / chromatin route card.

2026-03-20 addendum: transcript count is not post-transcriptional RNA-state

Wang et al. (2015) showed that a neuron-specific LSD1 splice isoform regulates memory formation, Dai et al. (2019) showed that presynaptic neurexin alternative splicing changes postsynaptic receptor balance and contextual memory, Shi et al. (2018) and Li et al. (2025) showed that m6A-reader routes can alter hippocampus-dependent learning and memory, and Peterson et al. (2025) showed that ADAR2-mediated GluA2 editing contributes to homeostatic synaptic plasticity. Therefore, when a claim depends on isoform choice, m6A-dependent translation / degradation, or RNA-editing ratio, this site asks authors to disclose whether post-transcriptional RNA-state was directly measured, causally perturbed, externally calibrated, or silently replaced by gene-level abundance alone. Specialized long-read atlas work such as Joglekar et al. (2024) is informative for the ceiling but still not a comparable in vivo whole-brain human route.

2026-03-21 addendum: post-transcriptional RNA evidence now needs a route card

The remaining weakness was that alternative-splice controller papers, m6A-dependent translation papers, m6A-dependent degradation papers, RNA-editing controller papers, and long-read atlas papers could still be compressed into one bucket called post-transcriptional evidence. The primary literature does not support that shortcut. Wang et al. (2015) is a splice-isoform route whose downstream object is chromatin / transcriptional control, Dai et al. (2019) is a splice-dependent transsynaptic receptor-balance route, Shi et al. (2018) and Li et al. (2025) are distinct m6A translation-versus-degradation routes, Peterson et al. (2025) is an ADAR2 / GluA2 editing route for homeostatic scaling, and Joglekar et al. (2024) is an atlas / observability-ceiling route. On this site, post-transcriptional claims therefore have to disclose claim family, RNA control axis, time axis, assay and direct observable, downstream functional object, causal leverage, human observability ceiling, and abstention boundary before any claim ceiling is raised. The full operating rule is summarized in Wiki: post-transcriptional RNA route card.

2026-03-20 addendum: transcript or protein abundance is not phospho-signaling state

Giese et al. (1998), Lee et al. (2003), Rodrigues et al. (2004), Tomita et al. (2005), and Vierra et al. (2023) show that memory-relevant phosphosite occupancy and signaling nanodomains remain another control layer even when transcript or bulk protein abundance looks similar. Therefore, when a claim depends on kinase/phosphatase balance, phosphosite occupancy, or local second-messenger routing, this site asks authors to disclose whether phospho-signaling / second-messenger state was directly measured, causally perturbed, externally calibrated, or silently replaced by abundance-only evidence. Human phosphoproteome atlas work such as Biswas et al. (2023) is informative for the ceiling but still not a comparable in vivo whole-brain human route.

2026-03-21 addendum: local proteostasis evidence now needs a route card

Frey & Morris (1997) and Shires et al. (2012) are about tag / capture eligibility. Govindarajan et al. (2011) is about branch-level integration. Fonseca et al. (2006) and Parker et al. (2025) are about synthesis-degradation or proteasome-capacity balance. Pandey et al. (2021) and Chang et al. (2024) are about autophagy-linked plasticity routes. Lee et al. (2022) and Thomas et al. (2025) are about turnover-resistant persistence or a candidate tag substrate. Therefore, when a claim depends on late stabilization, reconsolidation, or cross-event capture, this site now asks authors not only whether the local proteostasis / synaptic-tag route was measured or perturbed, but also which claim family, which integrative unit, which direct observable, which turnover window, and which human observability ceiling apply. Current human routes on this site do not directly resolve tagged branches, PRP capture, local ribosome / proteasome / autophagy state, or same-subject whole-brain late-stabilization controllers. The longer operating rule is in Wiki: local proteostasis / synaptic-tagging route card.

2026-03 Addendum: delay is not one scalar

Hardware latency audit and biological timing-state audit solve different problems. Seidl et al. (2015), Dutta et al. (2018), Cohen et al. (2020), Micheva et al. (2021), and Dubey et al. (2022) show that node/internode geometry, periaxonal coupling, astrocyte control, and PV-axon myelination can all alter spike-arrival timing and synchrony. van Blooijs et al. (2023) pushes human tract-scale transmission-speed measurement forward, but it still remains a macro proxy. Therefore, when a claim depends on phase, synchrony, or closed-loop timing, this site asks authors to disclose whether biological timing-state was measured, externally calibrated, absorbed into a constant, or left latent.

2026-03-21 addendum: ECM / PNN evidence also needs a route card

The remaining weakness was that ECM / PNN evidence could still compress several different inferential objects into one bucket. The primary literature does not support that shortcut. Pizzorusso et al. (2002) is about plasticity-window reopening, Frischknecht et al. (2009) is about receptor-mobility constraint, Nguyen et al. (2020) is about microglia-driven ECM remodeling, Alexander et al. (2025) is about cell-type-specific memory support, Mehak et al. (2025) is about an age-linked rescue route, and Lehner et al. (2024) plus Banovac et al. (2025) remain human ex vivo histology. On this site, ECM / PNN claims therefore have to disclose which claim family, which matrix object and cell population, which direct observable, which controller or perturbation route, which recovery boundary, which human observability ceiling, and which abstention boundary apply before any claim ceiling is raised. The full operating rule is summarized in Wiki: ECM / PNN route card.

2026-03-21 addendum: ionic / chloride evidence also needs a route card

The remaining weakness was that ionic evidence could still compress several different inferential objects into one bucket. The primary literature does not support that shortcut. Glykys et al. (2014) is about local chloride set point, Heubl et al. (2017) is about activity-dependent KCC2 regulation, Ding et al. (2016) and Forsberg et al. (2022) are about interstitial / CSF ion composition linked to sleep-wake state, Byvaltsev et al. (2023) is about perisynaptic K+ clearance by reverse-mode KCC2, Alfonsa et al. (2025) is about sleep-wake-history-dependent EGABAA shifts that change LTP induction, and Huberfeld et al. (2007) is a human pathology route. The human sodium row is also split: Qian et al. (2012) is TSC mapping, Fleysher et al. (2013) is SQ+TQF-derived ISMF / ISC / ISVF, Rodriguez et al. (2022) is a repeatable normalized sodium density-weighted route, Azilinon et al. (2023) shows that TSC and short-component fraction f can diverge, and Qian et al. (2025) is mono-/bi-T2 signal separation. On this site, ionic / chloride claims therefore have to disclose which claim family, which direct ionic observable, which spatial regime, which perturbation or controller route, which human quantity type / compartment model, and which abstention boundary apply before any claim ceiling is raised. The full operating rule is summarized in Wiki: ionic / chloride route card.

2026-03-30 addendum: shared extracellular / electrical-state evidence needs an extracellular-geometry split

The remaining weakness was that electrical-state evidence could still compress several different inferential objects into one bucket, especially by hiding extracellular-space geometry inside the electrical label. The primary literature does not support that shortcut. Galarreta & Hestrin (1999) is about gap-junction coupling networks, Anastassiou et al. (2011) is about endogenous-field / ephaptic spike-timing bias, Graydon et al. (2014) is about local extracellular-volume-fraction geometry and neurotransmitter dilution, Kilb et al. (2006) and Lauderdale et al. (2015) are about osmotic extracellular-space contraction / edema-linked excitability, Burman et al. (2023) is about inhibitory driving-force regime in active cortex, Yang et al. (2024) is about activity-dependent electrical-synapse remodeling, Selfe et al. (2024) is a direct inhibitory-driving-force assay with a specialized local optical route, Xie et al. (2013) is about sleep-linked interstitial-space expansion, Voldsbekk et al. (2020) remains a wakefulness-related human diffusion-MRI proxy clue, Örzsik et al. (2023) adds a sleep-conditioned higher-order diffusion / glymphatic clue under a within-subject sleep-deprivation-plus-zolpidem regime, and Feld et al. (2026) remains a human perturbation-conditioned clue with pharmacological caveats rather than a local whole-brain readout. On this site, shared extracellular / electrical-state claims therefore have to disclose which claim family, which direct extracellular / electrical observable, which spatial regime, which perturbation or calibration route, which human evidence class, and which abstention boundary apply before any claim ceiling is raised. The full operating rule is summarized in Wiki: electrical-state route card.

2026-03 Addendum: Use augmentation / ablation instead of enumeration

The weakness found in this re-audit was that by simply listing the state variables as ``missing,'' it was difficult to convey to the reader what could be added to make the claim even stronger. Therefore, on this site, we will compare the connectome-only baseline and the model with additional variables under the same held-out conditions, and request submissions that show which augmentation reduced which error term.

augmentation claim Minimum desired comparison What you can say even more strongly when you pass Replacement in case of failure
+ same-brain function / behavior Compare the model that adds the connectome-only baseline and the same-brain function/behavior using the same split. We can limit the extent to which the structural atlas is effective for state-dependent response prediction within the same individual. Contains structural scaffolding and annotation, and does not promote dynamical claims.
+ transcriptomic / cell-type label Ablation with the condition that removes the node label, and generates gain of target specificity and held-out response. You can say how much cell-type information improves target-specific connectivity and response prediction. cell-type is a descriptive tag and does not auto-complete until threshold / gain / set point.
+ transcriptional / chromatin state audit Compare a cell-atlas or connectome baseline against the same model with time-stamped expression / chromatin measurements or causal epigenetic perturbation under the same held-out learning or stabilization condition, and disclose gains separately. You can state more narrowly how much allocation eligibility, late stabilization, or locus-specific plasticity control improves once current transcriptional / chromatin state is treated explicitly. A static atlas or one-shot DEG list remains identity/context annotation or a time-stamped clue, and does not become ground truth of current plasticity state.
+ sleep / wake renormalization audit Compare the same baseline against a model or analysis that adds controlled sleep / wake history, deprivation or recovery status, and explicit overnight renormalization logging under the same held-out cross-day condition. You can state more narrowly how much cross-day stability or recovery prediction improves once sleep-dependent reset / accumulation is treated explicitly. Same-day fit remains same-day fit; it does not become next-day maintenance evidence.
+ sleep architecture / replay audit Compare the same baseline against event-defined slow-oscillation / spindle / ripple or TMR timing features together with sleep-integrity / disturbance metrics and any named NREM physiology gate under the same held-out overnight consolidation condition, and disclose gains separately. You can state more narrowly how much replay-consistent retention or timing-specific consolidation is explained once architecture, sleep continuity, and physiology-gating are modeled explicitly. A night of sleep, oscillation gain, or average overnight gain remains a temporal outcome, not replay-consistent mechanism evidence.
+ local proteostasis / synaptic-tagging audit Compare a synapse- or transcription-aware baseline against the same model with tag/PRP capture measurements, local translation/degradation/autophagy perturbation, or branch-local tag proxy under the same held-out stabilization or reconsolidation condition, and disclose gains separately. You can state more narrowly how much late stabilization, branch-local persistence, or cross-event capture improves once the local proteostasis route is treated explicitly. A current weight estimate or one-shot transcriptomic change remains a snapshot and does not become ground truth of the late-stabilization route.
+ ECM / PNN state audit Compare a synapse- or connectome-based baseline against the same model with matrix markers, local matrix perturbation, or externally calibrated ECM state under the same held-out plasticity or recovery conditions, and disclose gains in plasticity / reversal / stabilization separately. You can state more narrowly how much plasticity-gate control, inhibitory stabilization, or memory-update resistance improves once ECM / PNN state is treated explicitly. Histology, pathology, or generic scaffold annotation alone remain structural context and do not become a ground truth of current ECM / PNN state in vivo.
+ ionic milieu / chloride-homeostasis audit Compare a synapse- or excitability-aware baseline against the same model with chloride-state measurements, ionic manipulation, transporter-state perturbation, or externally calibrated ionic proxy under the same held-out memory, rhythm, or state-transition condition, and disclose gains separately. You can state more narrowly how much inhibitory polarity, rhythm stability, or state-transition prediction improves once ionic / chloride state is treated explicitly. Human sodium MRI or pathology alone remains a quantity-defined macro or disease-linked proxy and does not become ground truth of current local chloride homeostasis in vivo.
+ shared extracellular / electrical-state audit Compare a chemical-connectome or synapse-aware baseline against the same model with gap-junction measurement or perturbation, local field calibration, extracellular-space geometry / diffusion audit, osmotic manipulation, sleep-linked interstitial-space logging, or direct inhibitory-driving-force measurement under the same held-out synchrony, sleep-oscillation, spillover, or state-switch condition, and disclose gains separately. You can state more narrowly how much fast synchrony, oscillatory coordination, spillover, or shared extracellular / electrical-state prediction improves once electrical coupling, extracellular geometry, and local driving-force state are treated explicitly. Human macro field, diffusion-MRI proxy, or perturbation evidence alone remains indirect and does not become ground truth of local electrical coupling, extracellular-space geometry, or cell-specific inhibitory driving force in vivo.
+ timing-state / conduction audit Compare a fixed-delay baseline against a model or analysis that adds measured or externally calibrated timing variables under the same held-out conditions, and disclose phase / synchrony / perturbation gains separately. You can state more narrowly how much timing-sensitive prediction improves once biological conduction timing is treated explicitly rather than absorbed into a constant. Human myelin maps or tract-speed estimates remain macro timing proxies; without external calibration they do not become per-axon timing ground truth.
+ thermal-state audit Compare the same baseline against local temperature measurement, heating / cooling perturbation, device-heating control, a human perturbation-conditioned thermal route, or externally calibrated human thermometry under the same held-out timing or field-potential condition, and disclose gains separately. You can state more narrowly how much membrane-kinetic, sequence-timing, or field-potential prediction improves once thermal-state is treated explicitly. Temperature remains a hidden covariate or macro proxy; it does not become a fixed background constant.
+ neuromodulatory route audit Compare the same baseline against mixed arousal proxy, local transmitter sensor, receptor / transporter atlas, occupancy PET, or release-sensitive displacement PET under the same held-out state transition, and report ligand / drug / challenge / dose / time-window plus abstention separately. You can state more narrowly how much a selected transmitter-linked covariate, regional receptor prior, or challenge-limited release proxy improved prediction or stratification. Mixed proxy remains a covariate, receptor atlas remains a regional prior, occupancy PET remains a ligand- and dose-limited target-engagement proxy, and displacement PET remains a receptor- and challenge-limited release proxy rather than whole-brain neuromodulatory ground truth.
+ bioenergetic / mitochondrial audit Compare the same baseline against local ATP-linked measurements, mitochondrial-position or fission / fusion perturbation, or externally calibrated macro energetic imaging under the same held-out repeated-burst or plasticity condition. You can state more narrowly how much reliability, dendritic plasticity, or energetic constraint prediction improves once bioenergetic state is treated explicitly. Generic metabolic support remains a coarse proxy and does not become local mitochondrial ground truth.
+ neurovascular-unit / BBB audit Compare the same baseline against capillary-diameter / BBB measurements, pericyte or endothelial perturbation, or a named human BBB permeability proxy route under the same held-out plasticity, recovery, or long-horizon stability condition, and disclose gains separately. You can state more narrowly how much support-state prediction or plasticity-consistent stability improves once neurovascular / BBB state is treated explicitly. Vascular nuisance audit or macro BBB proxy remains a partial route and does not become pericyte / endothelial controller ground truth.
+ glial metabolism / substrate-routing audit Compare the same baseline against lactate-transport blockade, ketone-route perturbation, glia-to-neuron lipid-transfer audit, apoE / sortilin fuel-choice route, or another explicitly named glial fuel-route perturbation or proxy under the same held-out memory-support or nutrient-regime condition, and disclose gains separately. You can state more narrowly how much memory-support or nutrient-regime prediction improves once supplier cell, fuel object, and transport route are treated explicitly. Generic metabolic or astrocyte proxy remains coarse and does not become source-specific glial substrate-routing ground truth.
+ astrocyte network / ensemble-state audit Compare the same baseline against astrocyte-network readout, astrocyte-specific perturbation, or a named human astrocyte proxy route under the same held-out recall, stabilization, or fear-state condition, and disclose gains separately. You can state more narrowly how much recall, reconsolidation, or multiday stabilization depends on astrocyte-state once it is modeled explicitly. Neuron-only or generic astrocyte language remains a partial model and does not become astrocyte-state-complete evidence.
+ clearance / immune-support audit Compare the same baseline against lymphatic / microglial perturbation, CSF-mobility or biomarker-efflux route, or another named clearance proxy under the same held-out recovery or maintenance condition, and disclose gains separately. You can state more narrowly how much multiday recovery or support-state prediction improves once clearance / immune support is treated explicitly. Human clearance evidence remains macro clearance-transport proxy and does not become local immune-controller ground truth.
+ excitability / homeostatic recovery log Issuing held-out degradation, recovery time, and memory allocation proxy for cross-day/cross-perturbation. It can be said even more strongly that the state on the controller side had an effect on long-term stability and memory allocation. Retain short-term activity fit, and return long-term claims and memory claims to latent state.
2026-03 Addendum: Add measurement stack to augmentation claim

Even if the same "transcriptomic label is added" or "same-brain function is added", the variables directly observed by the whole-brain spatial atlas, Patch-seq, volume EM, same-brain calcium+EM, and local transmitter sensor are different. Therefore, on this site, we always include Which measurement stack provided the additional information in the augmentation claim, and also write the claim ceiling for each stack separately. For a summary table, see Wiki: observability and claim ceiling by measurement stack.

Verification rigor requirements (reorganized in 2026-03 scientific audit)

Based on the primary literature audit in March 2026, this section has been rewritten to separate "requirements that are currently close to standards" and "requirements that are promising but are still in the exploratory stage." There are three main amendments: Do not require specific tool names, Require external validation for source imaging claims, Reduce TMS-EEG and thermodynamic indicators with application conditions.

Weaknesses found in audit

In the previous text, methods with different characteristics, such as ASR, ZapLine-plus, PCI-ST, Effective Information, and EPR, were listed as the same "essential requirements." But first and foremost, COBIDAS-MEEG and EEG-BIDS emphasizetransparent reporting, shareable metadata, and comparable baselines. Therefore, on this page, we reposition foundation of reproducibility as required, methodology selection recommended, andadditional theory-driven indicators as exploration.

Essential requirements (close to standard at this time)

  • Shareable inputs: Compliant with BIDS / EEG-BIDS, leaving events.tsv and JSON sidecar, electrode coordinates, coordinate system, task description, instructions, and key artifact factors. It is strongly recommended that event semantics be supplemented with machine-readable vocabularies such as HED and CogAtlasID.
  • Transparent reporting:Publish acquisition conditions, reference methods, filters, bad channel processing, exclusion trials, ICA/regression/interpolation order and parameters in line with COBIDAS-MEEG. We do not use "automatic preprocessing" that cannot be reproduced.
  • External validation of ESI claims:When claiming improvements in EEG source imaging, clarify individual MRI, coordinates, and forward models as much as possible, and verify errors using named validation classes such as simulations / phantoms, intracranial stimulation, simultaneous invasive recordings, or postsurgical outcome. Deep accuracy should not be claimed simply by introducing high-density EEG or MRI.
  • Comparison design:The evaluation will not be completed with the accuracy of a single dataset, but will be divided by subject or session, compared with the existing baseline, and any failures, abstention conditions, and uncertainties will be disclosed. Improvements on a single dataset do not guarantee external generalization.

Recommended requirements (issue-dependent, but improves reproducibility)

  • Sensitivity analysis of preprocessing:ASR, Autoreject, ICA, ZapLine-plus, Riemannian geometry, etc. are candidates and are not a universal correct answer. Leave at least one alternative setting or sensitivity analysis to see which treatment drove the results.
  • Signal preservation audit:Record the amount of change in the before and after spectra, exclusion rate, interpolation rate, and key indicators to check not only that the noise has been reduced but also that it is not destroying the target signal.
  • Specifying conditions for TMS-EEG/PCI:If perturbation complexity is used, report stimulation site, intensity, coil angle, auditory masking, myoelectric/stimulus artifact window, repeatability assessment, and follow TMS-EEG recommendations.

Search requirements (promising but not currently gate conditions)

  • PCI-ST Spatial Distribution, Effective Information, Causal Density, Transfer Entropy:While these can be useful for research, they are highly task- and implementation-dependent and are currently not included in the required core metrics of the common bench.
  • Persistence diagram, Bottleneck distance, Fisher information distance:Promises as an auxiliary indicator for structural comparison, but lacks standardization in interpretation and stability. Submit as an auxiliary analysis, and place the primary judgment on simpler, more easily auditable metrics.
  • Thermodynamic irreversibility / EPR: Research on non-equilibrium brain dynamics is progressing, but the current main evidence still relies heavily on fMRI, ECoG, and theoretical models. It is too early to use this as an essential KPI for pass / fail decisions in WBE verification.

2026-03 Addendum: Consciousness readout is accepted at 4 gates

The remaining weakness in this section was that simply sorting EEG / DoC / anesthesia papers into "no-report," "PCI," "resting-state," and "multimodal" still left the promotion rule too coarse. Ferrante et al. (2025) showed that preregistered theory competition does not currently yield a single winner, so theory labels cannot be allowed to leak status into readout labels. Cohen et al. (2024), Dellert et al. (2025), and Fahrenfort et al. (2025) showed that post-perceptual / report confounds and criterion placement must be broken separately, so no-report design alone is not yet construct validity. Gogulski et al. (2024) showed that early/local dlPFC TMS-evoked responses vary markedly in reliability across targets and analysis windows, and Biabani et al. (2024) showed that auditory and somatosensory inputs can materially contaminate TMS-evoked responses across prefrontal, premotor, and parietal stimulation. Breyton et al. (2025) then showed that spatiotemporal brain complexity can separate consciousness-related states outside perturbation paradigms, while Casarotto et al. (2024) showed that spontaneous EEG features and PCI can dissociate in minimally conscious patients, so resting-state markers still require same-cohort calibration rather than substitution for perturbational benchmarks. Finally, Amiri et al. (2023), Rohaut et al. (2024), and Manasova et al. (2026) showed that multimodal panels can improve diagnosis / prognosis and cross-centre robustness, but only as bundles whose value must still be measured against behavior-only baselines, missing-modality slices, and site transfer. Therefore, this site accepts consciousness-related readouts at the following four gates.

Gate Minimum requirement Assertion to stop when not passing
Construct-validity gate Separate no-report from report, log criterion placement separately, predefine failure conditions, and disclose how task / report confounds were suppressed. Do not say the marker reads conscious content itself; decision strategy and post-perceptual processing remain viable alternatives.
Perturbational gate For TMS-EEG or intracranial perturbation, report stimulation site, intensity, control / sham, auditory and somatosensory suppression, artifact window, analysis window, and target-specific reliability. Do not call a PCI / PCI-ST-style value a stable state-level benchmark if the perturbation and reliability log is incomplete.
Calibration gate Calibrate resting-state complexity / criticality, PCI, behavioral assessment, clinical outcomes, and pipeline sensitivity within the same cohort, and publish the decision / abstention threshold used at evaluation time. Do not present resting-state complexity or passive EEG classifiers as standalone bedside meters; without same-cohort calibration they remain auxiliary proxies.
Incremental / deployability gate Show incremental value over a behavior-only baseline, external-site generalization, robustness under missing-modality conditions, calibration error, and measurement burden. Do not describe a multimodal panel as ready to deploy or portable across hospitals on average accuracy alone.
Minimum operating rules

No-report / criterion placement is treated as a construct-validity gate, PCI / PCI-ST is treated as a main benchmark candidate only after it passes a perturbational gate, resting-state complexity / criticality remains an auxiliary proxy until it passes a calibration gate, and a multimodal clinical panel remains exploratory until it passes an incremental / deployability gate. In other words, on this site, the same "awareness index" can have a different claim ceiling depending on which gate it has passed.

What still had to be fixed after the 4-gate split

Even after the 4-gate split, one shortcut remained: a submission could still borrow authority from a familiar label such as IIT, PCI, criticality, or multimodal without exposing which gate was actually passed on which denominator. That shortcut is not supported by the primary literature. Therefore, this site now requires the following card whenever a result is promoted as a consciousness-related readout.

Consciousness Readout Card

This card is deliberately narrower than a theory summary and stricter than a generic multimodal checklist. Its job is to stop theory names, proxy names, and bundle names from sounding like one common evidential ladder when they are not.

Card field What must be exposed Claim to stop when this field is missing
Readout family and claimed gate Name whether the result is being used as a prediction family, construct-validity control, perturbation benchmark candidate, same-cohort proxy, or deployability bundle, and state explicitly which of the 4 gates it is claiming to have passed. Do not let a familiar label such as IIT, PCI, criticality, or multimodal stand in for the evidence level.
Construct-control log Expose report / no-report relation, task relevance, criterion placement, failure conditions, stimulus matching, and whether the marker survived a design that suppresses post-perceptual alternatives. Do not promote late or frontal correlates to conscious-content markers by default.
Perturbation log Expose stimulation site, intensity, control / sham, sensory suppression, artifact window, analysis window, trial count, and target-specific reliability. Do not call a PCI / PCI-ST-like value a portable state benchmark.
Same-cohort calibration denominator Report how many cases contribute jointly to resting metrics, perturbation metrics, behavioral assessment, and outcomes; publish the evaluation-time threshold and abstention rule. Do not compare passive and perturbational markers as if they were calibrated when they were not observed on the same denominator.
Incremental baseline and availability slice Report the behavior-only baseline, strongest single-modality baseline, complete-case denominator, missing-modality policy, and whether the bundle gain survives each slice. Do not write "multimodal outperformed baseline" if the denominator changed or if the gain disappears outside the complete-feature subset.
Transfer and disagreement window Report cross-site / cross-scanner / cross-protocol validation, hard-group disagreement, calibration drift, and measurement burden. Do not describe the readout as deployable or portable across hospitals on internal validation alone.
Non-licensed claims Write explicitly what the result does not determine yet, such as conscious content, personal identity, theory truth, or bedside portability. Do not let readers promote the result by implication after the table ends.
How this card changes site behavior

If the card is missing, this site reads the submission at the lowest gate actually supported by the exposed evidence. A theory-associated metric remains a prediction-linked readout, not a theory verdict. A passive classifier remains a proxy, not a perturbation substitute. A multimodal gain remains bundle-performance evidence, not automatic clinical portability.

Causal perturbation suite (reorganized to 4-gate system)

The March 2026 primary-literature audit reconfirmed that current BCI and neuromodulation papers provide causal evidence with different strengths at different stages, not a one-step demonstration of "counterfactual equivalence." Therefore, this site treats offline accuracy, online human-in-the-loop, local causal intervention, and long-term closed loops separately, and does not promote merely high-accuracy results to L2 / L3.

What is different from ordinary accuracy evaluation

A normal accuracy evaluation asks whether the system gives the same answer to the same question. The causal perturbation suite goes one step further and compares how performance collapses and how it recovers when conditions are intentionally changed. In other words, it is not only a test of answer matching, but also a test of whether internal mechanisms react in comparable ways.

When you want to organize only the entrance first

If you want an everyday-language explanation of the differences between held-out accuracy, intervention, counterfactual reasoning, and perturbation-based verification, read Wiki: Counterfactual and Perturbation Verification first.

2026-03-28 addendum: co-adaptation must be logged before online gains are interpreted

One remaining shortcut at the L3 entrance was that a paper could still say "online performance improved" without separating user-side learning, decoder updates, and application-side shaping. The primary literature does not support that shortcut. Orsborn et al. (2014) showed that decoder adaptation can itself shape neural plasticity during neuroprosthetic control. Perdikis et al. (2018) and Abu-Rmileh et al. (2019) showed that longitudinal BCI gains can depend on mutual learning and that adaptation rate can trade off against subject learning. Wairagkar et al. (2025) and Wilson et al. (2025) then showed modern speech and cursor loops with session-to-session retraining, blockwise decoder updates, and explicit open-loop probes. Therefore, this site now requires a Co-Adaptation Log before same-session online gains are promoted to fixed-decoder or durable-loop language.

Gate Minimum desired proof Current representative examples What this still does not justify
Gate 1 / online decode The subject performs continuous operations or conversations while viewing the output, compares using online indicators instead of offline, and discloses whether decoder or interface policy was frozen or updated during the run. Forenzo et al. (2024), Willett et al. (2023), Littlejohn et al. (2025) This alone does not lead to causal structure matching, counterfactual equivalence, or fixed-decoder durability.
Gate 2 / bidirectional perturbation Feedback or a bidirectional loop in which a stimulus changes the next input, behavior changes due to intervention, and the surrogate body / environment mapping is disclosed. Flesher et al. (2021) Even if we can show the causal gain of local subsystems, we cannot show that whole-brain WBE holds true.
Gate 3 / state-dependent intervention Switch stimulation and control according to the detected state, and show improvement by comparing real-life blocks. Oehrn et al. (2024), Dixon et al. (2026) Task-specific controller effectiveness may be shown, but state completeness remains unresolved.
Gate 4 / longitudinal stability Disclose the degradation, recalibration frequency, abandonment rate, and termination conditions of fixed decoders. Wairagkar et al. (2025), Wilson et al. (2025), Cascino et al. (2026) A system that cannot operate stably over time cannot be treated as L3-complete on the basis of a short demonstration.

Three-stage introduction

  • Stage A / Validation that can be performed now: Preregister and compare out-of-subject generalization, unlearning conditions, online indicators, abstention, and calibration error using public EEG and existing BCI data. Even if Stage A is passed, the argument remains at L1 to weak L2.
  • Stage B / Intermediate validation with external standards: Measure response error, uncertainty, and recovery time in systems with ground truth, such as simulations, phantoms, intracranial stimulation, and simultaneous invasive recordings. Strong claims about source-imaging improvement or perturbation response should not be made until this stage has been passed.
  • Stage C / Actual intervention: TMS-EEG, adaptive stimulation, and pharmacological interventions have strong validation power, but they require IRB approval, equipment, and subject operations. In this repository, the requirements specification and public log format are prepared in advance, while experiment execution itself is treated as an external dependency task.
Evaluation metrics

In the first judgment, we prioritize pre-registered effect size, robustness under OOD conditions, calibration error, abstention rate, and uncertainty range, as well as end-to-end latency P50 / P95 / P99, jitter, dropout, recalibration burden, and recovery time after perturbation. PCI-ST spatial distribution, bottleneck distance on persistence diagrams, and Fisher Information Metric (FIM) distances between generated models are left as auxiliary analyses; the main pass / fail judgment does not depend on any single method.

Don't sell the word counterfactual cheaply

If the branching conditions, comparison rules, failure conditions, and stimulus artifact windows are not fixed in advance, we do not refer to it as a "counterfactual equivalence" on this site, but rather as an intervention response test or a perturbation generalization test.

2026-03-19 addendum: attach a Body / Environment Boundary Card to L3 results

The weakness exposed in this pass was that latency, jitter, and safe-stop logs can show whether a loop is fast and stable, but not which subject boundary the loop actually preserved or whether the slow internal milieu remained matched. Musall et al. (2019) and Stringer et al. (2019) showed that ongoing behavior explains a large fraction of cortical activity, Saleem et al. (2013) and Ravassard et al. (2013) showed that locomotion, optic flow, vestibular, and other sensory cues reshape cortical and hippocampal codes, Zelano et al. (2016) and Raut et al. (2025) showed that breathing and arousal link brain dynamics to organism-wide physiological state, and Flesher et al. (2021) showed that restoring tactile feedback improves a local bidirectional BCI. But that still leaves a slower class undernamed. de Quervain et al. (1998) showed that glucocorticoids can impair memory retrieval, Oei et al. (2007) showed that hydrocortisone decreases hippocampal and prefrontal retrieval activity in humans, McCauley et al. (2020), Barone et al. (2023), and Birnie et al. (2023) showed that circadian timing and corticosteroid rhythm alter hippocampal plasticity machinery, and Benedict et al. (2004), Reger et al. (2008), and Sherman et al. (2015) showed that insulin delivery or circadian-rhythm consistency can shift human memory or hippocampal activity. Therefore, a loop result cannot be read here as “embodiment solved” unless it names which sensory, motor, interoceptive, surrogate-body, and slow internal-milieu routes were preserved, substituted, matched, perturbed, or omitted.

Body / Environment Boundary Card field What must be written at minimum What goes wrong if it is omitted
declared boundary / target subsystem Fix whether the claim concerns a speech loop, grasp loop, navigation loop, memory-task loop, or a broader embodied agent, and state the maximum claim ceiling. A local loop is too easily misread as if the whole subject boundary had been reproduced.
retained / substituted sensory channels List which inputs were preserved or replaced: vision, touch, proprioception, vestibular cues, respiration-related cues, auditory feedback, dialogue partner, and task-state cues. The reader cannot tell whether the observed performance depended on missing cues that were silently restored or on cues that never existed in the test.
retained / substituted action channels Name the actual plant or actuator, such as cursor, robotic hand, speech synthesizer, virtual avatar, or stimulation output, together with its controllable degrees of freedom. The loop can look “embodied” even though the output space was heavily simplified.
interoceptive / autonomic / arousal routes State whether respiration, pupil, HR / HRV, effort, fatigue, or other body-state observables were logged, manipulated, or left latent. Arousal- or body-state-driven gains can be misread as stable neural equivalence of the target subsystem.
slow internal-milieu / circadian / endocrine-metabolic routes State whether circadian phase or clock time, recent sleep-wake schedule, cortisol / glucocorticoid assay or steroid treatment, feeding / fasting or glucose-insulin regime, and similar slow body-state variables were controlled, measured, perturbed, or left latent. When available, name the assay type and sampling window. A stable-looking local loop can be overread as state-equivalent even though memory retrieval, plasticity, or gain regime changed with slow body-state variables that were never matched.
surrogate body / environment contract Describe the surrogate body or environment, including latency, noise, saturation, sensory remapping, and whether the environment was fixed, simulated, or interactive. A local engineering convenience can be mistaken for a biologically comparable sensorimotor world.
loop-removal / ablation test Report what happened when feedback, tactile input, self-motion cues, or another key loop element was removed, scrambled, or delayed. The system may look robust only because the decisive loop component was never challenged.
environment OOD / perturbation slices Report performance across changed environments, noise levels, partners, objects, tasks, or sensory conditions rather than only on the training setting. The result can be overread as general closed-loop competence even if it is tightly locked to one environment.
residual omitted loops / abstention boundary Fix which body / environment routes still remained absent and what stronger claim is therefore forbidden. L3 subsystem evidence is too easily promoted to embodied equivalence or WBE readiness.
Minimum operating rules

If this card is missing, this site treats the result by default as a task-specific local controller, local subsystem loop, or surrogate-body demonstration. It does not promote the result to solved embodiment, subject-complete closed loop, or WBE-relevant body / environment equivalence.

Fast routes and slow milieu are different audits

Respiration, pupil, HR / HRV, tactile contact, self-motion, and dialogue context are not the same inferential object as circadian phase, corticosteroid exposure, or feeding / insulin regime. This site therefore logs fast loop routes and slow internal-milieu routes separately rather than assuming one disclosure covers both.

How this differs from the Intervention Card

The Intervention Card fixes what was changed and how timing/safety were logged. The Body / Environment Boundary Card fixes what system boundary the loop actually used. On this site, a paper needs both before its L3 wording is allowed to rise.

Additional audit logs (with applicable conditions)

In response to technical criticisms (Issue #257-#260) submitted in the latter half of February 2026, this section clarifies the role of additional logs. The goal is not to make everything mandatory, but to clarify what should be included once a given analysis has actually been run.

Log with applicable conditions

  • Human Proxy Composition Card:When several living-human proxy rows are used together, name the claimed latent variable, proxy class and direct observable by row, the evidence role / decision axis of each row (normative atlas / cohort prior, cross-sectional contrast, same-subject baseline, within-subject change witness, or perturbation-response witness) together with the route and time window that justify that role, same-subject / same-session relation, effective time window / state axis, physiological / perturbation regime compatibility, operational maturity, calibrator role, model burden, route-local repeatability / reproducibility window, method-family non-equivalence when nominally similar quantities depend on different acquisition or fitting routes, cross-centre / cross-scanner transfer window, acquisition completeness / row-overlap geometry / missing-row slice, common-driver / independence audit, agreement / disagreement topology plus resolution policy, incremental evidence over the strongest single row, cross-row calibration route, and residual latent-state ceiling. If this is missing, the bundle stays at the strongest single-row or proxy-rich ceiling rather than same-subject state identification.
  • Fusion Card:When reporting multimodal or atlas-prior results, name the acquisition relation, synchronization route and unresolved lag, effective-window / temporal-kernel relation, geometry / co-registration scope, fusion model, hemodynamic vascular-state / CVR calibration when applicable, unimodal and prior-only baselines, availability / complete-case slice, missing-modality policy, cross-centre / cross-scanner transfer or disagreement window, external calibration route, and abstention boundary. If this is missing, the result stays at the strongest unimodal or atlas-conditioned ceiling rather than same-subject cross-stack state identification.
  • ESI/HBM logs:Only when making anatomical source claims, attach uncertainty maps from cranial conductivity, forward model sensitivity analysis, or hierarchical Bayesian estimation.
  • Inverse-Solver Agreement Log:When reporting an anatomical ESI/HBM result, name the inverse families / packages compared, source regime / target object, uncertainty object, parameter window, forward-model uncertainty route or fixed conductivity policy, named validation board / operating regime when available, headline-location spread or overlap metric, and whether the displayed map is best-case, median, or ensemble. If this is missing, the result stays at the method-sensitive source-hypothesis level.
  • Identifiability Card:For inverse or model-based claims, name the claim object, structural-identifiability assumptions, practical-identifiability evidence, alternative solution set, experiment-design leverage, recorded subset, held-out falsification route, and abstention boundary. If this is missing, the result stays at predictive / localization / model-conditioned level rather than unique recovery.
  • Alternative model log:Does not claim that the estimated model is the only solution, but reports the existence of alternative models or equivalence classes that can explain the same observed statistics.
  • Connectome-Constrained Model Card:When reporting a connectome-constrained predictor, name the structural prior and coverage, fitted degrees of freedom, task/state regime plus OOD slices, omitted mechanisms, validation / perturbation class, ensemble spread or alternative families, and abstention boundary. If this is missing, the result stays at the conditional-model / hypothesis-engine level.
  • Effective Connectivity Route Card:When reporting DCM or related effective-connectivity results, name the node set and omitted competitors, observed-subsystem closure / latent-confound audit, node-definition policy, processing / first-level design policy, neural-mass / HRF / prior assumptions plus sampling / transformation sensitivity, family comparison or model-recovery results, perturbation / external validation route, reliability window, and abstention boundary. If this is missing, the result stays at the model-conditioned hypothesis level.
  • Pretraining Card:When reporting a foundation / self-supervised EEG result, name corpus identity and overlap audit, setup diversity, harmonization policy, adaptation regime, benchmark object / supervision unit, benchmark provenance, scale / efficiency, and the stopped claim. If this is missing, the result stays at the qualified representation-learning / decoding level.
  • Body / Environment Boundary Card:For online human-in-the-loop or embodied tasks, name retained / substituted sensory, motor, and interoceptive channels, the surrogate body / environment contract, loop-removal tests, OOD environment slices, and the abstention boundary. If this is missing, the result stays at the local-controller level.
  • Co-Adaptation Log:For online human-in-the-loop results, name whether the decoder, thresholds, smoothing, prompt or control scaffold, and interface rules were frozen or updated, the trigger and cadence of each update, any fixed-policy or open-loop comparator blocks, practice dose and instruction changes, and whether the apparent gain is attributed to user learning, decoder adaptation, or mixed causes. For invasive language or speech BCIs, also state whether the result is being read as same-session throughput / expressivity, transfer initialization, a bounded fixed-decoder slice, or adaptive rescue. If this is missing, the result stays at same-session local-controller or co-adaptive-package evidence rather than fixed-decoder stability.
  • Phase-Targeting Log:For phase-locked stimulation or phase-triggered observation, name the target band and channel / spatial filter, oscillation gate (power, SNR, phase-reset rejection, no-stim rate), causal estimator family and post-hoc benchmark, trigger-time circular targeting metric, off-target or random-phase comparator, and whether the preferred phase was fixed or adaptively updated across sessions. If this is missing, the result stays at exploratory state-dependent timing evidence rather than validated phase-specific control.
  • Burst-Controller Log:For burst-driven neuromodulation or adaptive DBS, name the biomarker family and symptom target, sensing contacts / signal-to-noise / artifact exclusions, controller family (single threshold, dual threshold, proportional, inverse, or decoder-based), movement / medication / rest regime, floor / ceiling amplitude, update interval / onset duration / ramp policy, biomarker-linked comparator and any TEED or duty-cycle matching rule, and rescue or programming burden. If this is missing, the result stays at exploratory burst-trigger timing evidence or personalized-controller feasibility rather than validated symptom-linked control.
  • Preprocessing Fidelity Log:Records before and after spectra, exclusion/interpolation rates, changes in key metrics, and at least one task-consistent signal preservation metric, with or without ASR.
  • Event Semantics Log: Attach HED to BIDS metadata and map to CogAtlas / CogPO / NIF / SCORE etc. as necessary. Fixing to a specific ontology is not a common requirement.
  • Perturbation log:If local interventions or stimulation were used, expose the stimulation site, intensity, artifact window, masking, safe stop conditions, and retry conditions. If not used, specify "No perturbation evidence."
  • Irreversibility / Thermodynamic Route Card:When reporting irreversibility, arrow-of-time, entropy production, or entropy flow, name signal route and state definition, coarse-graining / closure assumptions, estimator family, null / surrogate control, reverse-transition support / finite-data handling, quantity type (lower bound / asymmetry / model-based), and isolation of hardware power and computational cost. If this is missing, the result stays at the exploratory auxiliary-log level.
Handling external dependent tasks

Validations that require real subject intervention (TMS/tDCS), IRB review, and equipment procurement are managed as externally dependent tasks. In this repository, "requirement specifications, judgment conditions, and public log format" will be implemented in advance, and the experiment implementation itself will proceed on a separate track.

Thermodynamic indicators (exploration track)

Although research investigating brain dynamics using NESS (Non-Equilibrium Steady State) and time irreversibility is important, this site positions it as a Supplementary Research Track as of 2026-03. While the usefulness of irreversibility indicators is being shown, they are still not a common acceptance criterion for WBE validation because the result can move materially with modality, coarse-graining, partial observability, hidden-cycle structure, temporal resolution, source model, finite-data regime, and dynamical assumptions. In particular, entropy production estimated from coarse-grained neural data is often information-theoretic lower bound and must be read separately from microscopic physical dissipation itself.

2026-03-28 addendum: irreversibility claims also need a reverse-transition support audit

Lynn et al. (2021) estimated entropy-production lower bounds from coarse-grained BOLD state transitions, showed sensitivity to the number of coarse-grained states, and displayed finite-data confidence intervals around the resulting fluxes. de la Fuente et al. (2023) used inversion decoding on ECoG and showed dependence on principal-component choice, feature set, and model complexity. Ishihara & Shimazaki (2025) estimated model-based entropy flow from spike trains while explicitly stating pairwise and conditional-independence limits and using trial-shuffled controls to separate coupling-related contributions from firing-rate dynamics and sampling error. Teza & Stella (2020) and Cocconi et al. (2022) showed that coarse graining is part of the thermodynamic question rather than a harmless implementation detail, and Epp et al. (2025) showed that BOLD changes can oppose oxygen-metabolism changes. A second correction is required by the partial-observation and lacking-data literature. Martínez et al. (2019) showed that waiting-time asymmetry can reveal hidden dissipation even when observable current vanishes, Hartich & Godec (2024) showed that this reading can fail when coarse-graining and time reversal do not commute, Martínez et al. (2024) replied by limiting the original claim to coarse-grainings that are local in time and, where needed, second-order semi-Markov constructions, Blom et al. (2024) showed that coarse lumping can hide dissipative cycles and induce memory so that estimates from partial observations become far too small when the observed trajectory is naively treated as Markov, and Baiesi et al. (2024) showed that when reverse transitions are sparse or unobserved, direct entropy-production estimation can fail and lower-bound strategies become preferable. Therefore, the phrase "thermodynamic result" still does not tell us which quantity was computed, whether an energetic interpretation is grounded, whether the observed trajectory is thermodynamically closed enough for the chosen estimator, or whether the reported irreversibility had adequate reverse-transition support rather than only a clean surrogate test. On this site, any such claim now needs an Irreversibility / Thermodynamic Route Card; the longer public rule is summarized in Wiki: irreversibility route card.

2026-04-02 addendum: operational use also needs stability and bridge audits

The next weakness was that estimator meaning and hidden-degree risk were already separated, but operational stability was still too easy to smuggle in as if it came for free once the mathematics looked sound. Current primary literature does not support that shortcut. Poudel et al. (2024) showed that small motion can materially alter visibility-graph structure and that only low-motion subsets reached moderate-to-high test-retest reliability for selected metrics. Metzen et al. (2024) showed that BOLD variability and complexity measures have markedly different reliability profiles, with some functional-connectivity complexity measures remaining unacceptable-to-moderate. Omidvarnia et al. (2021) showed reproducible multiscale-entropy structure for resting-state fMRI, but that does not automatically transfer to every irreversibility family. A second weakness remained on the physiology side: Chen et al. (2025) showed with simultaneous EEG-PET-MRI that temporal coupling across modalities can be strong while spatial organization and state trajectories remain non-identical, and Epp et al. (2025) showed that task BOLD changes can oppose oxygen-metabolism changes. Therefore, this repository now treats stability / nuisance sensitivity, cross-estimator concordance, and physiology-bridge quality as separate reporting burdens before an irreversibility result is discussed as more than an exploratory auxiliary log.

What can be said at the moment

  • Breach of detailed equilibrium can be observed:There are studies that estimate the lower bound of entropy production from brain activity, and it is supported that irreversibility contains information about neural dynamics.
  • However, interpretation is route-dependent:The relationship between state of consciousness and irreversibility has also been reported in fMRI, ECoG, etc., but the appearance changes depending on coarse-graining, temporal resolution, preprocessing, source model, estimator family, and explicit model assumptions. EEG/ECoG/fMRI irreversibility should not be equated with metabolic dissipation or hardware power.
  • Operational promotion is a second question:Even after a metric is mathematically interpretable, motion sensitivity, denoising dependence, scan-rescan stability, and cross-estimator agreement still have to be shown before it can function as a reusable comparison lane.
  • Therefore, we do not use it as a gate condition:At this stage, thermodynamic indicators alone do not determine WBE identity or validity.

Minimum reporting rule

  • Route-card disclosure: Write signal route and state definition, coarse-graining / timescale, observed-state closure / hidden-degree risk, estimator family, and whether the reported number is a lower bound, asymmetry score, or model-based entropy-flow estimate.
  • Dynamical-assumption disclosure: Name steady-state, Markov, pairwise, conditional-independence, source-model, or other explicit assumptions that materially shape the estimate.
  • Memory-order / decimation disclosure: State whether the observed process is treated as Markov, 1st/2nd-order semi-Markov, or higher-order non-Markov, whether coarse-graining and time reversal commute under the adopted construction, which hidden states / cycles were collapsed, and whether waiting-time asymmetry or memory diagnostics were checked.
  • Nulls and surrogate controls: Report time-reversal / label / trial shuffles plus motion or nuisance controls, so artifact-sensitive and rate-only alternatives are tested explicitly.
  • Stability / nuisance sensitivity: Report motion sensitivity, denoising / preprocessing dependence, split-half or test-retest reliability, session interval, and whether the result is protocol-scoped or portable across reasonable acquisition variants.
  • Cross-estimator concordance when claims are strengthened: State whether the sign, ordering, or state separation survives more than one reasonable estimator family or remains explicitly family-specific.
  • Reverse-transition support and finite-data handling: Report whether the relevant reverse transitions were actually observed, how zero or rare reverse counts were handled, and what noise-floor, bootstrap, Bayesian prior, or lower-bound strategy was used when support was sparse.
  • Physiology-side grounding when energetic language is used:Name calibrated CMRO2, FDG-PET, 31P-MRS, or explicitly state that no direct metabolic route is present.
  • Physiology-bridge quality:If a metabolism-side route is invoked, state whether it was same-session, same-state-window, spatially coregistered, lag-aware, and whether cross-modal agreement or disagreement was quantified explicitly.
  • Cost Isolation:We report hardware power, wall-clock energy, FLOPs, and communication costs separately, and treat the approximately 20W of biological brains only as a background value for comparison.
  • Submitted as ancillary indicators:Read alongside existing reproducibility indicators, source validation, perturbed responses, baseline comparisons, and do not draw conclusions on their own.
  • Declare abstention explicitly:State what remains unresolved, such as microscopic dissipation, direct metabolic cost, direct causal wiring, or identity-relevant sameness.
What to do now with this repository

In this repository, we do not make thermodynamic indicators a "required submission," but rather leave them at the stage where route-card reporting, literature monitoring, estimation-error auditing, stability / nuisance checks, and explicit physiology-bridge logging are in place. This will be treated as an exploratory auxiliary analysis until stable within-modality operation and bridge-quality criteria are confirmed.

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