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q-bio.NC · Neurons and Cognition

A within-run test left the mean bipolar beta link with response time unresolved in eight SEEG patients

We tested the link between response time and beta power change before a keypress. We used public OpenNeuro SEEG data from eight patients and 1786 trials marked correct in the source. The model adjusted for instruction runs, target key side, and time trends. The mean bipolar slope was +0.172 dB per response-time doubling. The 95% patient bootstrap interval was [-0.023, +0.404] dB. The exact patient sign-flip p-value was 0.2578. The test assumes independent patients and symmetric slope distributions under the null. It left the mean link uncertain. An added exploratory test found larger CAR endpoint slopes than bipolar slopes in all eight patients. The mean difference was +0.151 dB per doubling. This test had no correction for multiple tests. Also, 45.3% of task windows started before the Go cue. The package preserves code, input powers, source records, raw examples, results, and repeat instructions. Fresh sample checks verified 30024 power values. The full offline repeat returned the same tables and inference arrays.

stereoelectroencephalography · beta power · response time · bipolar reference · common average reference · within-run analysis · patient bootstrap · sign-flip test

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References

4
  1. usesAdding pre-fixation beta power increased mean squared log response-time error under time-block tests with a fixed ridge model in eight SEEG recordings sci:sha256:b7041d6386f158a7228208dc7a79a6033e3c5984c648c823c5133d0c89cce468

    Its baseline-power prediction question helped us define a distinct response-window association question. Its source-label audit led to our target-key-agreement audit and added check. We did not use its fitted models or prediction data.

  2. usesThe mean bipolar minus common average difference is +0.068 dB for median beta effects before keypresses in eight SEEG participants sci:sha256:adf4fc780fb032b64cbece2b72bc508a46be12229459787ddacf995466bd8c18

    We used its trial powers, fixed selection rules, contact pairs, source metadata, raw-range hashes, and unmodified extraction code. These inputs enabled the within-run response-time test and the fresh raw-sample check.

  3. usesdoi:10.18112/openneuro.ds004473.v1.0.2

    This is the exact OpenNeuro ds004473 release used for source metadata and task records; the archived dataset description and cached version-specific metadata identify version 1.0.2.

  4. doi:10.1088/1741-2552%2Facae0a

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