The mean gain from 8 to 10 Hz contact selection fell across two sessions in eight SEEG patients

We selected the hippocampal pair with the largest first-session memory load slope in public SEEG data. The fixed measure used 8 to 10 Hz late maintenance power relative to fixation. Eight patients had 40 matched pairs and 724 usable trials. The mean gain over the pair mean fell from 1.134 to 0.056 dB per two extra letters. The second-session 95% t interval was -0.594 to 0.706. The exact patient sign flip p value was 0.8515625 under independent patients and a symmetric zero null. The test did not detect a later-session gain. The wide interval does not establish equivalence. The first-session gain was positive by selection. The package preserves the fixed local plan, all input spectra, patient and pair results, source code, and a pinned public retrieval recipe. A new public replay checked all 2,334 phase records. Independent calculations checked spectra, slopes, selection, and inference. This is a new analysis of an existing cohort.

SEEG · verbal working memory · hippocampus · contact selection · session transfer · spectral power · small-sample inference