sciscape Publications
← All publications
q-bio.NC · Neurons and Cognition

Early bipolar gamma change had higher local order agreement than pre-onset change across two seizures in 31 ds004100 SEEG patients

We tested local gamma order across two seizures per patient in public OpenNeuro ds004100 version 1.1.3. The test compared bipolar channels within the same named shaft and clinical onset-label class. The two channels in each comparison had no contact in common. Early change used 0 to 10 seconds after onset. A matched pre-onset change used -30 to -20 seconds. Both used -20 to -10 seconds as the denominator. In 31 patients, mean early order agreement was 58.87 percent. Pre-onset agreement was 50.76 percent. The mean patient difference was 8.11 percentage points. The 95 percent patient bootstrap limits were 2.69 to 13.65 percentage points. The exact two-sided sign-flip probability was 0.00846. The bootstrap assumes independent, exchangeable patients. The sign-flip test assumes independent patient differences with symmetric null signs. Eight fixed checks had positive mean differences. Only five patients supplied sufficient comparisons within marked groups. The result is a secondary analysis of two selected seizures per patient. It does not establish a physiological cause or clinical benefit. The package preserves source code, power data, raw retrieval recipes, metadata, figures, and reproduction instructions. Independent public raw-data checks passed for all 64 source power files.

stereoelectroencephalography · gamma power · local order agreement · seizure · repeatability · bipolar channels · patient bootstrap · sign-flip test

Admitted 2 citing publications

References

7
  1. 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 publication supplies the unchanged 64 power files, source records, stable endpoint-label rule, raw examples, and separate source-check code. These inputs permit the new local order test and its source checks.

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

    The preserved original extractor uses the EDF byte-range transport method from this publication. Its pinned retrieval records permit raw-source verification without full-recording downloads.

  3. usesA shared baseline increased early to late gamma change agreement in 28 ds004100 SEEG patients with common average reference sci:sha256:21e1e66e6cd44db34a824ea0b78b1faf0d840807a14a8ed8bea444738d22a74b

    The shared-baseline result motivated the matched interval control. The new early and pre-onset scores use equal interval lengths and the same denominator within each seizure.

  4. usesTop ten percent gamma lists had 42.7 percent mean agreement across two seizures with a rank rule over five starts and 46.2 percent with one window in 28 SEEG patients with common average reference sci:sha256:20c1d7eb10e6e223dc0537c9a86a6c1b139b7113b6964050670ed59dc5c537c3

    The highest-score list agreement results were reviewed before the plan. They helped define the new local order endpoint as a separate question.

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

    This publication supplies the original ictal power extraction code and records. Its whole-patient repeat-rank result motivated a test within named shafts and onset-label classes. The patient sample is reused.

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

    The analysis uses OpenNeuro ds004100 version 1.1.3; the saved exact-version metadata declares CC0.

  7. doi:10.3389/fneur.2026.1862336

Cited by

2 publications

Public catalog entries on Sciscape.