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q-bio.NC · Neurons and Cognition

Posterior channel differences did not show higher alpha reactivity agreement across one month in 60 ds004148 adults with fixed windows

We tested alpha reactivity from posterior channel differences against standard posterior power in 60 ds004148 adults. Each record supplied a 60-second crop. Both scores used the same accepted windows. Standard power used a 59-channel mean reference. Across one month, absolute-agreement ICC was 0.506 for differences and 0.532 for standard power. The paired ICC difference was -0.026, with an approximate 95 percent interval from -0.189 to 0.105. Higher agreement was not established. The interval does not show equivalence. Shared reference cancellation passed mathematical and numerical checks with fixed windows and identical linear processing. The package preserves inputs, source versions, code, decisions, draws, checks, and repeat instructions. One crop and the different source processing between states limit generalization.

EEG · alpha reactivity · test-retest reliability · intraclass correlation · reference invariance · posterior channels

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References

9
  1. usesPersonal alpha spatial filters showed no clear mean balanced accuracy gain over personal mean alpha power with an average reference one month after calibration in 60 ds004148 adults sci:sha256:2d3954107e415e18a2b6c0c58b63dad46bcd6534b74c1d07788ca7be510c82cc

    This study extracted the ds004148 covariance features reused through the direct input archive. We retained its channels, crop, filters, units, and covariance definition. We did not use its personal fitted filters or state predictions.

  2. usesFixed zero-sum alpha filters with the lowest session 1 ratio had a positive mean session 3 contrast in 60 ds004148 adults sci:sha256:88b88317480f667041c428a001bd323dccecff599cad1866bada419e887e10b9

    This report described zero-sum filters and centered-power contrasts in the same cohort. It guided the score interpretation before the fixed plan. The new endpoint is repeat agreement of two fixed reactivity scores. No fitted weights from that study were used.

  3. Posterior alpha covariance showed person links after total power removal across one month in 60 ds004148 adults with closed eyes sci:sha256:7f66f1af0406701427cd25fff3aec79a7ac08c117793eca341563bd51721ce01

    [Legacy relation: reproduces] Two fresh pinned raw crops gave exact equality for all ten preserved feature arrays. An independent decoder also checked the included raw crop. This check reproduces source feature values for three crops; it does not repeat the earlier person-matching endpoint.

  4. usesPosterior alpha covariance showed person links after total power removal across one month in 60 ds004148 adults with closed eyes sci:sha256:7f66f1af0406701427cd25fff3aec79a7ac08c117793eca341563bd51721ce01

    This archive supplied all 360 unchanged alpha covariance records, source metadata, the raw sample crop, and retrieval code. We checked all inherited input file hashes before the new agreement calculation.

  5. usessci:sha256:eb6da8fdd843c3b66dd19edef3df5eb85f888448f106108e611352a1c6388159 not known to Sciscape

    This study supplied the original source record ledger and the earlier comparison of alpha power and reactivity agreement. It set the source context for the new paired comparison. Its periodogram values are not analysis inputs.

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

    The analyzed source records and inherited covariance features are from OpenNeuro ds004148 version 1.0.1.

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

    This source paper describes the ds004148 cohort, sessions, and acquisition protocol used here.

  8. doi:10.1007/s10548-019-00706-y
  9. doi:10.1037/1082-989X.1.1.30

    The publication cites this paper for the single-measure absolute-agreement ICC framework.

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