Gamma thresholds set from five baseline windows flagged 101 of 320 baseline test windows after transfer and 81 with local use in 32 SEEG patients

We tested whether a gamma threshold from one SEEG file gave the same baseline flag rate in another file from the same patient. We used two public OpenNeuro ds004100 files for each of 32 patients. Each maximum threshold used five two-second baseline scores. The transferred threshold flagged 101 of 320 baseline test windows. The local threshold flagged 81. The mean paired change was 6.25 percentage points. The 95 percent patient bootstrap interval was 0.31 to 12.50 percentage points. The exact sign-flip probability was 0.0743. These results give limited evidence for a population increase. The result applies to short baseline windows in a reused cohort. It does not estimate clinical false alarms. The package preserves unchanged power inputs, fixed source versions, all scores, code, data retrieval instructions, and independent source checks. All 64 source files were checked. An offline repeat reproduced 11 numerical output files byte for byte.

stereoelectroencephalography · SEEG · gamma power · threshold transfer · baseline calibration · epilepsy · signal processing · patient bootstrap