In eight SEEG patients, long pre-cue 20 Hz power events occupied 14.59% of bins compared with 14.67% in phase controls

We tested whether long events in power near 20 Hz exceeded shared Fourier phase controls. We used 640 selected pre-cue segments from eight patients in public OpenNeuro ds004473 version 1.0.2. SEEG means stereoelectroencephalography. The sample contained 120 bipolar pairs. A long event had at least ten successive bins above a training threshold. Ten bins lasted about 100 ms. We gave each patient equal weight. Events occupied 14.59 percent of test bins. The mean was 14.67 percent in 999 shared phase controls. The difference was -0.074 percentage points. The descriptive 95 percent patient bootstrap interval was [-0.830, 0.678] percentage points. The upper Monte Carlo value was 0.598. The primary test did not reject this phase model. Its validity requires independent uniform common Fourier phases, given each segment's cross-spectrum, DC, and Nyquist values. The test does not show equivalence or an absence of neural bursts. The sample was selected offline and was reused from earlier work. The package preserves exact digital data, all control scores, thresholds, source recipes, code, results, and checks. Fresh retrieval and a complete analysis repeat matched the saved numerical files.

stereoelectroencephalography · Fourier phase controls · 20 Hz power · event occupancy · signal processing