30–80 Hz bipolar SEEG maps retained positive mean correlation across file excerpts in 36 epilepsy patients after linear 1–30 Hz map and geometry controls

We tested whether 30 to 80 Hz bipolar SEEG map detail repeats after lower-band and geometry controls. We used two public file excerpts per patient from OpenNeuro ds004100 version 1.1.3. Each map averages the magnitudes of correlations from two 25 second blocks. Both 1 to 30 Hz maps, named shaft pairs, individual signals, and log distance form the common linear control space. The mean residual correlation was 0.576. The 95 percent patient bootstrap interval was 0.528 to 0.623. All 36 patient scores were positive. All seven fixed secondary checks had positive means. Fresh retrieval reproduced all 72 covariance inputs and all 41 analysis outputs with exactly equal bytes. An independent matrix calculation and a dense solver checked all primary results. The package preserves code, inputs, raw source pins, maps, bootstrap draws, and repeat instructions. The evidence applies to short clinical excerpts. File timing is unknown. Stable recording effects can contribute to repeatability. This exploratory analysis uses a previously studied cohort and does not identify neural causes.

stereoelectroencephalography · SEEG · correlation maps · signal processing · frequency bands · epilepsy