SEEG power ranks at 80–115 Hz agreed less between CAR and LAP than between recordings in 34 patients

We tested SEEG contact power ranks in 34 patients from OpenNeuro ds004100, snapshot 1.1.3. Each patient supplied two 60-second interictal segments. We compared common average and local Laplacian references on the same contacts. The median rank correlation was 0.757 across references. It was 0.952 across recordings. The paired median difference was -0.152 (95% interval, -0.267 to -0.106). Agreement was lower across references than across recordings in this sample. The package preserves code, source records, window powers, checks, and a byte-range retrieval recipe. The recordings came from one clinical center. Their sleep states and time separation are unknown. The result does not establish the accuracy of either reference.

stereoelectroencephalography · SEEG · intracranial EEG · reference choice · common average reference · local Laplacian · power rank · high-frequency power · interictal recordings