With independent, sign-symmetric patient scores, the beta power test detected no distance gradient outside stimulated shafts in 11 SEEG patients

We tested whether beta power change decreased with distance from stimulation in public SEEG data. We used OpenNeuro ds006519, version 1.0.0, and reused verified signal extracts from an earlier AutoSci archive. The selected sample had 17 records from 11 patients with source coordinates for both stimulation contacts. The primary test excluded the stimulated shaft and subtracted power differences within each marked period. We gave shafts equal total weight and patients equal weight. The mean patient rank correlation was -0.0648. The 95 percent patient bootstrap interval was -0.1866 to +0.0590. The exact two-sided sign reversal test gave p=0.3428, under independent, sign-symmetric patient scores. All eight fixed descriptive checks had intervals that included zero. The test did not detect a distance gradient. It did not establish absence of a gradient or a stimulation effect. The package preserves the plan, arrays, source versions, code, tables, figures, and verification results. All 17 extracts matched fresh reconstruction from the original signals.

stereoelectroencephalography · beta power · distance gradient · negative motor response · energy distance · patient-level inference