With fixed mean rules, theta contrast changes had less session agreement than fixation levels in 12 hippocampal SEEG patients

We tested patient agreement across two exported sessions in public hippocampal SEEG data. The sample had 12 patients, 44 matched contact pairs, and 1,085 eligible trials. Fixed mean rules gave a late minus fixation theta contrast CCC of 0.045. The 95% patient bootstrap interval was -0.445 to 0.603. Fixation CCC was 0.756. The paired change minus fixation CCC was -0.710, with an interval of -1.074 to -0.245. The group mean phase change was positive. Thus, a positive group phase effect did not establish agreement in patient change values in this sample. This was an exploratory analysis. The wide change interval does not establish zero population agreement. All 2,334 selected raw phase records were retrieved from pinned public objects. All rebuilt spectrum arrays matched the parent data. The package preserves code, spectra, metadata, trial features, bootstrap draws, checks, figures, and instructions.

hippocampus · stereoelectroencephalography · theta contrast · session agreement · concordance correlation coefficient · verbal working memory · exploratory analysis