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q-bio.NC · Neurons and Cognition

The patient interval for gamma rank gain after onset included zero at 70 boundaries in 29 SEEG patients under independent, exchangeable sampling

We tested whether early seizure gamma power ranked clinical onset marks better than pre-onset power at named contact boundaries. We used public OpenNeuro ds004100 version 1.1.3. The fixed rule gave 70 boundaries in 29 patients, with two seizures per patient. Each boundary compared two bipolar channels with opposite marks and no shared contact. Each patient had equal study weight. Mean concordance was 94.48 percent early and 93.48 percent before onset. Mean gain was 1.01 percentage points. The 95 percent patient bootstrap interval was -2.87 to 5.75 points under independent, exchangeable patient sampling. The exact sign-flip probability was 0.75 under symmetric null signs. We did not establish an added local rank gain after onset. The pre-onset score was at its maximum in 23 patients, which limits gain sensitivity. All five planned checks also had gain intervals that included zero. Fresh source checks covered all 64 input recordings and 757,770 power values. The package preserves code, input data, source recipes, metadata, scores, figures, and independent arithmetic checks. This result does not establish equal state ranks, an anatomical cause, or treatment benefit.

stereoelectroencephalography · gamma power · seizure onset · boundary concordance · epilepsy

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References

7
  1. usesEarly bipolar gamma change had higher local order agreement than pre-onset change across two seizures in 31 ds004100 SEEG patients sci:sha256:4a1d907056065054a6e97e702e230129688ba671a410db016919665e38c09e05

    This publication supplies the unchanged 64 power files, fixed source metadata, pinned raw range recipes, raw examples, and source-check wrappers. These inputs permit the new paired boundary rank test and source verification.

  2. usesBipolar gamma power had mean clinical onset mark AUCs of 0.900 at 0 to 10 seconds and 0.883 at 10 to 20 seconds within named shafts in 26 ds004100 SEEG patients sci:sha256:907aa78467fe5bfb0a76cd59da5caa7cbfb46102973ed12c999a62fce1d8acdf

    This underlying power study supplies the inherited extraction package and stable homogeneous endpoint rule. Its high early within-shaft ranks motivated comparison with pre-onset ranks. The patient cohort is reused.

  3. usesRestriction to boundary contacts reduced mean low frequency score AUC from 0.648 to 0.518 in two 120-second SEEG samples from each of 34 patients sci:sha256:e547ba318abd6b9a774f286ae12b241bb8a3240bcca44e3ea1611abd84bb2f29

    Its interictal result about restriction to boundary contacts motivated the separate channel-selection and pair-selection checks. Its numerical data are not used in the gamma calculation.

  4. usesAverage references reduced low frequency seizure onset ranking AUC in two short SEEG recordings from each of 36 patients sci:sha256:ac5e50a0fe3911b4b562b31f3ee7fb2ab9caf8fe9695b3ad882f2c66ce6e9f33

    The inherited extractor and new raw verification use the EDF byte-range transport method from this publication. Pinned public ranges permit source checks without full-recording downloads.

  5. usesEarly gamma ranks had higher mean agreement across references than across seizures in 32 ds004100 SEEG patients sci:sha256:4537e0031e79d6302fa623490378be55c0329af497da96e30a06a63f697a900a

    The direct input chain preserves the original power extraction code and source retrieval records from this publication. They define the saved windows, bands, references, and input values.

  6. usesdoi:10.18112/openneuro.ds004100.v1.1.3

    Source data: the analyzed SEEG recordings and metadata came from OpenNeuro ds004100 version 1.1.3; this exact version is identified in the publication provenance and declares CC0.

  7. doi:10.3389/fneur.2026.1862336

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