The mean patient median log variance ratio was +0.505 dB after 6 mA pulses in five ds004457 SEEG patients with separate window means

We measured residual pulse variance in five epilepsy patients from OpenNeuro ds004457 version 1.0.2. We used 571 site-contact pairs and ten pulses per site. We removed separate window time means and the average pulse response. The mean patient median log variance ratio was +0.505 dB. The geometric variance ratio was 1.123. All five patient estimates were positive. The exact two-sided test of patient sign flips gave p = 0.0625. Recorded variation did not fall in the tested 50 to 250 ms windows. The common-offset check gave +4.411 dB. The package includes code, compact data, source hashes, all scores, and reproduction steps. We verified 120 fresh source files and 24,320 stored windows. This voltage measure does not isolate neuronal noise.

stereoelectroencephalography · SEEG · pulse variance · electrical stimulation · neural variability · variance ratio