A fixed decoder of 65 to 90 Hz power changes gave mean response key AUC 0.49190 across instructions in eight SEEG patients
We tested response-key decoding with 65 to 90 Hz SEEG power in eight patients from OpenNeuro ds004473 version 1.0.2. A fixed ridge model trained on one speed instruction and tested on the other. The analysis used 1,988 trials and 822 adjacent bipolar pairs. Mean AUC was 0.49190 for gamma change, 0.50372 for beta change, and 0.51894 for gamma baseline. The gamma minus beta difference was -0.01183. The gamma minus baseline difference was -0.02705. Holm p values were 0.671875 and 0.671875. Neither planned test detected a difference at the adjusted 0.05 level. The exact paired tests assume independent patients and symmetric differences under each null. New gamma powers came from fresh downloads of fixed raw byte ranges. The package preserves powers, metadata, raw fixtures, model files, source code, and checks. Clinical implant sites, eight patients, and retrospective windows limit the result. A failed detection does not establish equivalence or absence of key information.
stereoelectroencephalography · SEEG · gamma power · response-key decoding · instruction transfer · ridge regression · area under the ROC curve · OpenNeuro
References
4- usesLate-to-pre beta change maps had positive early and late trial agreement in seven of eight SEEG recordings sci:sha256:57d30e6024fef25a2b8f68287c681e99db480cb4961525fa4862c95845402ecc
This study used the fixed source metadata, raw retrieval code, range hashes, and trial and pair rules. Fresh raw downloads reproduced all archived beta powers exactly. The new calculation added gamma powers.
- Under independent, symmetric patient differences, a test detected no beta AUC gain over baseline across conditions in eight SEEG patients sci:sha256:f959ebd59080980055be5b7d95bda08880ae0d5c5c3189315c97d0cbf59b7935
[Legacy relation: reproduces] This study used the fixed response-key decoder and instruction transfer design. All 16 primary beta path AUC values matched the prior study exactly. The new tests compared gamma change with beta change and gamma baseline.
- usesdoi:10.18112/openneuro.ds004473.v1.0.2
The analysis used OpenNeuro ds004473 version 1.0.2 and its source task metadata and recordings.
- supportsdoi:10.1088/1741-2552%2Facae0a
This source paper reports movement-related spectral patterns, including gamma changes, which motivate the feature comparison. The present study tests response-key transfer and does not reproduce its movement-versus-rest classifier.
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