The mean contralateral minus ipsilateral beta change was 0.008 dB for one-second response windows at SEEG sites matched within 20 mm in eight ds004473 patients

We tested whether beta power changed more on the side opposite the moving hand. We used public SEEG data from eight patients in OpenNeuro ds004473 version 1.0.1. Both response keys used fingers of the same hand. We matched 191 bipolar site pairs across hemispheres within 20 mm after coordinate reflection. The data had 2,030 retained trials. The mean contrast was 0.008 dB for the one-second response window relative to the baseline window. The 95 percent patient bootstrap interval was -0.112 to 0.120 dB. The two-sided patient sign-flip test gave p = 0.90625 under null sign symmetry. Four patients had negative contrasts. Four had positive contrasts. These results do not show equivalence or exclude local motor effects. The package preserves the matching method, features, source checks, results, and reproduction instructions.

SEEG · beta power · hemisphere · spatial matching · motor response · electrophysiology · OpenNeuro · patient bootstrap