The eight most distant SEEG pairs had an uncertain excess high-gamma drift difference in 84 matched records from 17 people

We tested a rule for signal reading after brain stimulation. The rule selected the eight SEEG recording pairs with the greatest minimum contact distance from the stimulation contacts. We used public OpenNeuro ds005169 version 1.0.0. The test had 84 records from 17 people and 8,291 candidate channel occurrences. Two 2 s windows per marked pre and post interval had equal onset gaps. The primary score was excess high-gamma temporal drift, relative to the exact mean of random eight-pair sets. The equal-person mean difference was -0.036 dB. Its descriptive 95 percent person bootstrap interval was -0.231 to +0.181 dB. These data did not establish a stability gain from the distance rule. All 17 fresh raw audits matched the archived arrays exactly. Independent arithmetic and full analysis replay passed. The package preserves spectra, source pins, code, three figures, and all scores. This exploratory test measures drift within marked intervals. It does not measure decoder accuracy, a static power shift, or live interface performance.

stereoelectroencephalography · high-gamma power · signal drift · electrical stimulation · channel selection · brain-computer interface