The mean bipolar beta contrast is +0.052 dB between cue and keypress windows in eight SEEG patients when both windows remain between those events

This study compared 13 to 30 Hz beta power in cue and keypress windows from eight public SEEG patients. Both half-second windows had to remain between the cue and keypress. The analysis used 976 of 1786 source retained trials and 834 adjacent bipolar pairs. Each patient effect was the median across mean paired log power contrasts. The mean patient effect was +0.052 dB for response minus cue. The 95 percent patient bootstrap interval was -0.075 to +0.161 dB. The exact sign-flip p value was 0.4453125. The test assumes independent patients and symmetric effects under the null. It did not resolve a group mean difference. This does not establish equivalent windows. In 729 primary trials, the windows shared samples. Two patients had only 13 and eight primary trials. The package adds new cue powers to archived response powers. It preserves code, pinned metadata, trial masks, range hashes, raw audit records, figures, and retrieval instructions. Independent checks and a repeat analysis passed.

stereoelectroencephalography · SEEG · beta power · keypress · event-related power · signal processing · paired comparison