Bipolar SEEG pairs selected for low beta change before a response had a mean -0.050 dB contrast with other pairs 0.5 to 1.5 seconds after it in later trials from eight ds004473 patients

We tested whether sites with low beta change before a key press had greater beta change after it. We used public SEEG from OpenNeuro ds004473 version 1.0.1. We formed adjacent bipolar pairs. The first 40 trials per patient set the pair ranks. We selected the lowest ranked pairs within each shaft. The 20 percent count was rounded up. The last 40 trials tested that selection. The primary window was 0.5 to 1.5 seconds after the response. The baseline was before fixation. The mean selected minus other contrast was -0.050 dB across eight equally weighted patients. Its 95 percent patient bootstrap interval was -0.152 to 0.055 dB. The exact two-sided patient sign-flip p value was 0.4531. The fixed primary test did not detect a contrast at the 0.05 level. The package preserves all 640 trial feature sets, mean spectra, source metadata, raw range hashes, 16 raw check ranges, source code, results, and repeat instructions. Separate test trials do not give independent patient replication. These data cannot establish a neural cause or clinical use.

stereo-electroencephalography · beta power · bipolar electrodes · response timing · patient-level inference · reproducibility