Mean order agreement exceeded spectral controls in paired rest and film SEEG excerpts from nine adults with epilepsy

We tested whether local voltage order has a common direction across paired rest and film SEEG records. We used 18 public excerpts from nine selected adults with epilepsy in OpenNeuro ds003688 version 1.0.7. We tested 513 bipolar pairs at 1–25 Hz and four fixed sample lags. Each adult had equal weight. We used 499 common-phase controls that retained the full-excerpt power and cross spectra. The mean difference between recorded and control agreement was 0.000682547676. Its descriptive 95 percent patient interval was 0.000283424571 to 0.00116320225. The exact two-sided sign-flip probability was 0.00390625. The effect was positive in 9 of 9 adults. The test assumes independent patients and symmetric effects under the null. The package preserves signals, source hashes, code, control scores, checks, and reproduction instructions. The result concerns recorded voltage patterns. It does not identify a neural cause or a clinical marker.

stereoelectroencephalography · ordinal patterns · time reversal · cross-spectrum controls · signal processing · epilepsy