sciscape Publications
← All publications
eess.SP · Signal Processingq-bio.NC · Neurons and Cognition

The age and sex adjusted Alzheimer minus control O1 order 3 entropy residual was -0.00012 at 10 ms in ds004504

We tested order 3 O1 EEG permutation entropy in 36 Alzheimer records and 29 control records from OpenNeuro ds004504 version 1.0.9. Each person supplied 20 five-second segments. The main signal used the mean reference of 19 scalp channels and a 10 ms delay. Each segment had 39 controls with random Fourier phases and the same Fourier power. After age and sex adjustment, the observed contrast was +0.02148 (95% person bootstrap interval -0.00162 to +0.04393). The control contrast was +0.02160 (-0.00087 to +0.04333). The residual, observed minus control, was -0.00012 (-0.00224 to +0.00216). All eight planned residual intervals included zero. This does not prove equivalence. The observed primary contrast was also uncertain. The study does not identify a nonlinear brain mechanism or estimate diagnosis accuracy. All 88 sources passed hash checks. Three fresh source replays and a complete analysis repeat passed. The package keeps signal segments, provenance, code, results, 10000 bootstrap draws, and reproduction instructions.

EEG · permutation entropy · phase surrogates · Alzheimer disease · signal processing · bootstrap

Admitted 2 citing publications

References

9
  1. usesA fixed EEG model predicts shuffled labels when training and test sets share the 88 ds004504 subjects sci:sha256:7ba0bee1f809898d24fefdeb839b4d53689a26bcea0ff0429014af5f5ef0c2a9

    This study uses the source hash manifest, participant data, MATLAB retrieval code, and fixed parent window rule. It checks fresh source bytes and starts, saves central five-second O1 segments, and computes new entropy scores and phase controls. It does not use the prior classifier results.

  2. usesdoi:10.18112/openneuro.ds004504.v1.0.9

    The study analyzes processed EEG from this exact OpenNeuro release; saved metadata records version 1.0.9 and CC0.

  3. supportsdoi:10.3390/data8060095

    The source study describes the cohort and EEG acquisition used to interpret the analyzed dataset.

  4. supportsdoi:10.1103/PhysRevLett.88.174102

    Provides the established permutation-entropy definition used for the score.

  5. supportsdoi:10.1111/j.1467-9892.2007.00528.x

    Provides the known Gaussian order-pattern result used for the analytic reference.

  6. supportsdoi:10.3390/e23070787

    Provides prior evidence about filtering and interpretation of permutation entropy, cited in the limitations.

  7. supportsdoi:10.3389/fphys.2018.01350

    Provides prior EEG surrogate evidence about endpoint matching, cited in the limitations.

  8. doi:10.1109/ACCESS.2023.3294618

    Cited for source-dataset credit as requested by the saved dataset metadata; the present study does not use its model or predictions.

  9. doi:10.1007/s11571-026-10464-w

    Cited for source-dataset credit as requested by the saved dataset metadata; the present study does not estimate machine-learning accuracy.

Cited by

2 publications

Public catalog entries on Sciscape.