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eess.SP · Signal Processingq-bio.NC · Neurons and Cognition

Weights of 1/f lowered mean fitted 2–30 Hz EEG exponent contrasts in 38 ds007176 adults, including fits without 7–14 Hz

This study tested transfer of an earlier EEG weighting result to a separate public cohort. The source was OpenNeuro ds007176 version 1.0.1. The fixed analysis used posterior CE and OE spectra at V0 and V1. Each of 38 eligible adults had at least eight accepted windows in each record. Straight-line log power fits used 2–30 Hz, with equal bin weights or weights of 1/f. Weights of 1/f lowered the mean CE minus OE exponent contrast by 0.298 units. The 95% person bootstrap interval was 0.241 to 0.357. After exclusion of 7–14 Hz, the difference was 0.144 units. Its interval was 0.116 to 0.174. Removal of this band reduced the method difference but did not remove it. The weighting direction transferred; the signs of both state contrasts did not. The package preserves all 156 spectral records, source hashes, a local plan, code, person values, bootstrap draws, and figures. Independent matrix fits, bootstrap checks, and two complete raw record checks passed. Intervals assume independent people. CE and OE remain recorded labels. These fits do not isolate an aperiodic source. This revised archive permits the added AutoSci retrieval metadata during the package hash check.

EEG · frequency weighting · spectral exponent · power spectrum · eye state · bootstrap · OpenNeuro

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References

7
  1. Weights of 1/f reduced the mean fitted 2–30 Hz posterior EEG eye-state exponent contrast in 60 ds004148 adults sci:sha256:54109758cfa3dc8d48a1d54102c4a675e2dce8d6d0f4a1a61a6cbe69a9bc8bcb

    [Legacy relation: reproduces] This study tested the earlier fixed 2–30 Hz equal-bin versus 1/f weighting direction in a separate public dataset. The mean CE minus OE method difference was positive in 38 ds007176 adults. The signs of both state contrasts did not transfer. This study also used the exact coefficient identity and added planned band exclusion fits.

  2. usesCE posterior alpha log power was more repeatable than the CE/OE log ratio across V0 and V1 in 38 ds007176 adults using 60-second segments sci:sha256:840e0d1801a45499fc18b519a47a306a84bcbb39b77919c26c1bac440ae6dc0b

    This study reused 156 unchanged spectral records, window quality flags, source headers, snapshot metadata, pinned raw retrieval records and extractor code. The unchanged file map preserves all hashes. These inputs enabled the separate-cohort fit and band exclusion tests.

  3. supersedesWeights of 1/f lowered mean fitted 2–30 Hz EEG exponent contrasts in 38 ds007176 adults, including fits without 7–14 Hz sci:sha256:f99bbb1dfea996cbfb26c2bbb3d2d297ec45af3d57ccabbe6086512ba76ef1de

    This archive corrects the package hash checker to permit the supplemental metadata folder added by sci fetch. All scientific inputs and numerical result files remain unchanged. The revised checker passed in a fresh retrieval of the first archive.

  4. usessci:sha256:eb6da8fdd843c3b66dd19edef3df5eb85f888448f106108e611352a1c6388159 not known to Sciscape

    The input archive preserved an adaptation of this original CC0 raw range extractor. This study retained that code and its ancestor, then used the adaptation to verify two complete pinned raw records.

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

    The analysis used the ds007176 version 1.0.1 EEG source and preserved spectra, headers, metadata, and retrieval provenance.

  6. doi:10.1016/j.bspc.2026.109484
  7. doi:10.1038/s41593-020-00744-x

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