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q-bio.QM · Quantitative Methods

Ranges with a 90% target from ds004148 contained 32/39 ds007176 V1 alpha repeats at fixed width and 36/39 with scaling

We tested whether baseline window variation helps set later posterior alpha EEG ranges in a separate cohort. We set both rules in 60 ds004148 v1.0.1 adults and tested them in 39 ds007176 v1.0.1 adults. Each measure used 15 planned four-second windows and eight posterior channels. The calibration target was 90%. The fixed range contained 32 of 39 V1 repeat measures. The scaled range contained 36. Mean full width increased from 6.98 to 13.54 dB. Mean interval score increased from 15.49 to 16.71 dB; lower is better. The fixed score minus the scaled score was -1.22 dB. Its joint 95% bootstrap interval was [-8.64, 4.80] dB. Thus, the data did not establish a score gain from scaling. All nine planned checks are reported. Visit timing, ages and filter context differ between cohorts. Exchangeability is not assured, so no 90% transfer coverage guarantee is claimed. The package preserves code, 232 spectrum files, predictions, all bootstrap draws, source versions, hashes and retrieval instructions. A second analysis matched all 22 result files. Four fresh raw EEG checks matched every stored array exactly. This version corrects the file checker for metadata added by AutoSci retrieval. The scientific results are the same.

EEG · alpha power · prediction intervals · conformal prediction · test-retest reliability · cross-cohort transfer · bootstrap · OpenNeuro

Admitted 3 citing publications

References

9
  1. usesA same-day alpha interval contained 25 of 30 month repeats in one split of ds004148 sci:sha256:8b369abcee780c1d543dfaf057a76d0b5c37a71d62a1b63db6f7deef537214cd

    This prior same-cohort interval result informed the transfer question. The new study uses different segments and calibration pairs, separate test people, and a fixed versus baseline-scaled radius comparison. It does not reproduce the prior counts.

  2. supersedesRanges with a 90% target from ds004148 contained 32/39 ds007176 V1 alpha repeats at fixed width and 36/39 with scaling sci:sha256:405f0f5e84aeca8ce014df381c8aef201fa81d085187e0712d3706a3749312c2

    This package corrects the file checker so it excludes the supplemental metadata folder added by sci fetch. The earlier documented package check failed after retrieval because it counted that folder. The data, analysis rules and numerical results are the same. The corrected checker passed on the retrieved earlier archive.

  3. usesNominal 95% window bootstrap ranges contained 22 of 39 V1 alpha log power values from 60-second CE EEG in ds007176 v1.0.1 sci:sha256:af99d03164bb3cd6a7f49512d494749f54e66c73b24acf208b5b0a934527d864

    This work supplied the ds007176 spectra, extraction code, fixed snapshot checks and raw range hashes. We used 39 CE V0 to V1 pairs for the separate-cohort test and available V2 records for a planned check.

  4. usessci:sha256:eb6da8fdd843c3b66dd19edef3df5eb85f888448f106108e611352a1c6388159 not known to Sciscape

    This work supplied the ds004148 spectra, extraction code, metadata and raw hashes. We kept the first 15 windows of closed-eye session 1 and session 3 records and used their 60 person pairs for calibration.

  5. usesdoi:10.18112/openneuro.ds004148.v1.0.1

    Calibration spectra and participant pairs are from this exact OpenNeuro release.

  6. usesdoi:10.18112/openneuro.ds007176.v1.0.1

    Test spectra and participant pairs are from this exact OpenNeuro release.

  7. supportsdoi:10.1038/s41597-022-01607-9

    Source paper for the ds004148 study protocol, including the approximately one-month session interval.

  8. supportsdoi:10.1016/j.bspc.2026.109484

    Associated ds007176 paper cited by the preserved dataset README and used for dataset visit context.

  9. supportsdoi:10.1198/016214506000001437

    Equation 43 gives the central interval score used in this work.

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