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stat.ME · Methodologyeess.SP · Signal Processing

A model with equal state gain variances and independent visit gains required state gain correlations above 0.783 and 0.897 for a finite alpha agreement reversal in two fixed EEG samples

We tested when added gain can reverse the agreement ranking of closed-eye alpha power and its closed/open ratio. We derived an exact condition for equal state gain variances and separable state and visit correlations. We used fixed posterior 8 to 13 Hz features from 60 and 38 adults. With independent visit gains, a finite reversal required state gain correlation above 0.783 and 0.897. With exactly shared state gains, visit correlation had to be below 0.482 and 0.414. The intervals were broad. The curves are ratios of expected ANOVA components, not expected sample ICCs. Gain was assumed, not estimated. The package preserves source spectra, code, bootstrap draws, proof, hashes, results, and reproduction instructions.

EEG · alpha power · test-retest reliability · intraclass correlation · measurement error · gain correlation · bootstrap · agreement

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References

7
  1. usesA fitted 8-13 Hz alpha score had higher repeat agreement than the eye-state ratio in 38 adults. It did not cancel common gain with fixed windows. sci:sha256:5fad3d8b25ba8f75d4e3a6e5eba3998c3a707c751e88f3639f3933818bbb0247

    This work supplied the shared-gain cancellation argument and independent gain stress test for a fitted score. We extended its covariance assumptions.

  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 work supplied ds007176 spectra, record rules, source metadata, and baseline components. We kept its 38-person paired sample.

  3. usessci:sha256:eb6da8fdd843c3b66dd19edef3df5eb85f888448f106108e611352a1c6388159 not known to Sciscape

    This work supplied ds004148 spectra, source metadata, the extractor, and baseline components. We verified all copied hashes and baseline coefficients.

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

    This exact OpenNeuro version supplied the ds004148 spectra used in the 60-person analysis.

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

    This exact OpenNeuro version supplied the ds007176 spectra used in the 38-person analysis.

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

    The source data paper supplies the ds004148 sample and protocol details summarized in this publication.

  7. supportsdoi:10.1016/j.bspc.2026.109484

    The source data paper supplies the ds007176 source study context and collection details discussed here.

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