Acquire
Validate
Register Events
Epoch
Preprocess
Extract Features
Analyze
Test Hypotheses
Verify
Report
ROC-AUC
0.722
Permutation p
0.0196
50 perms
Null mean ± SD
0.502
± 0.026
Cohen's d
1.086
Majority baseline
0.684
ROC curve (out-of-fold)
GroupKFold · AUC 0.722
Permutation null distribution
Label-shuffled negative control
Confusion matrix & leakage controls
pred control
pred deceased
true control
591
25
true deceased
180
104
Cross-validation PASS GroupKFold(5)
Overlap-leakage grouping PASS
Participant-ID audit NOT APPLICABLE
Held-out participant INSUFFICIENT DATA
Held-out stimulus INSUFFICIENT DATA
Alternative model scoreboard
| Model | Status | Verdict |
|---|---|---|
| A · Constraint propagation | UNRESOLVED | Deceased-related state is discriminable; consistent with A but not yet distinguished from D/E without matched confound controls. |
| B · Global representational extinction | UNRESOLVED | Requires an independent person-identity preservation test to weaken/support; not available in this dataset. |
| C · General emotional salience | UNRESOLVED | Not excluded: no valence/arousal measurements to rule out a nonspecific salience account. |
| D · Familiarity / autobiographical memory | UNRESOLVED | Not excluded: no familiarity/memory-richness controls in current design. |
| E · Attachment intensity | UNRESOLVED | Living-attachment control present but attachment-strength covariates absent; cannot separate attachment intensity. |
Robustness multiverse (feeds evidentiary state & claim gate)
PASSVariants
10
Significant fraction
100%
AUC range
0.659–0.744
Median AUC
0.719
| Analytic variant | AUC | vs null upper |
|---|---|---|
| features=all_features | 0.722 | PASS |
| features=spectral_only | 0.670 | PASS |
| features=no_connectivity | 0.715 | PASS |
| features=time_domain_only | 0.710 | PASS |
| model=lda | 0.744 | PASS |
| model=linear_svm | 0.659 | PASS |
| cv_folds=3 | 0.709 | PASS |
| cv_folds=10 | 0.729 | PASS |
| seed=43 | 0.722 | PASS |
| seed=44 | 0.722 | PASS |
Effect is stable across the admissible analytic multiverse — supports the current claim level.
Evidentiary state · falsification · challenge matrix
| Prespecified failure condition | Status | Note |
|---|---|---|
| Deceased-related states cannot be distinguished from matched controls | PASS | Deceased vs controls AUC=0.722, p=0.0196. |
| Permutation testing removes the apparent effect | PASS | Effect survives permutation null. |
| Effects disappear under participant-level validation | INSUFFICIENT DATA | Single-participant dataset cannot test participant-level generalization. |
| Classification explained by emotional arousal | UNRESOLVED | No arousal measurement available to exclude an arousal account. |
| Person representation globally decays rather than remaining distinguishable | INSUFFICIENT DATA | Requires an independent person-identity preservation test. |
| No dissociation between explicit knowledge and neural response | INSUFFICIENT DATA | Requires explicit-recall contrast with concurrent conscious report. |
| Results depend materially on preprocessing choices | PASS | Effect stable across the admissible analytic multiverse. |
| Results depend on a few contaminated trials | NOT TESTED | Trial-influence analysis not yet executed. |
| Longitudinal behavior contradicts the proposed architecture | INSUFFICIENT DATA | Single session; longitudinal trajectory not testable. |