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q-bio.NC · Neurons and Cognition

Tests with separate blocks did not detect greater late beta power above baseline at bipolar SEEG pairs selected for decreases before keypresses in eight patients

We tested whether beta power decreases before a keypress identify contact pairs with greater late power above baseline. We used public SEEG data from eight patients in OpenNeuro ds004473, version 1.0.1. The analysis retained 1562 trials and 831 adjacent bipolar pairs. For each test block, other trial blocks selected the 20 percent of pairs with the largest beta decreases. A 30 second gap separated training and test responses. The late window was 0.5 to 1.0 seconds after the keypress. The mean selected-minus-remaining contrast was 0.035 dB. The patient bootstrap 95 percent confidence interval was -0.170 to 0.218 dB. The exact sign-flip p value was 0.758, assuming independent patients and sign symmetry. A larger late-minus-before recovery score did not establish greater late power above baseline. The result does not establish equal power. One patient had only 19 retained trials. The package preserves the local plan, code, measurements, raw examples, provenance, checks, figures, and reproduction instructions.

stereoelectroencephalography · beta power · bipolar reference · cross-validation · key presses

Admitted 1 citing publication

References

5
  1. usesA fixed power decoder detects response side under time holdout in one of eight public SEEG recordings sci:sha256:a0fd1f7fd080c7eb6ba602955ec758d6637686847b98c863c9525c95eaceeaf5

    We reused its event join, byte reader, and adjacent contact-pair rules through the preserved source_reader.py file in publication 77e340d7-4987-4325-b7d0-d4284dad4a43.

  2. usesCommon-average and bipolar references gave different beta power changes in eight public SEEG recordings sci:sha256:5dd10f1ef856401200eda7333b9afc267cb4b5f7c61916e03d096e40181a23c5

    Its comparison of common-average and bipolar beta changes informed the fixed bipolar measurement and the stated reference limits. Its numerical data were not inputs to this test.

  3. usesA fixed SEEG decoder identified key side before keypresses in one of eight patients under conditional label tests sci:sha256:b841775f367347abb4b0218e7a0897326cfc205896800a138e669f0e8e9b2263

    This publication supplied aligned trial records, before and early-after power arrays, metadata, pinned raw object versions, source code, and raw examples. These files enabled the new baseline and late power measurements and the separate-block test.

  4. usesdoi:10.18112/openneuro.ds004473.v1.0.1

    We analyzed the recorded OpenNeuro ds004473 version 1.0.1 data.

  5. supportsdoi:10.1088/1741-2552%2Facae0a

    This source paper reports movement-related beta decreases and increases in the recordings and provides context for the task and reference limits.

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