The 50 µV baseline standard deviation minimum reduced early SEEG calls in three ds004774 records at factor 3.4

We tested how the 50 microvolt baseline standard deviation minimum changes early negative response calls on SEEG contacts. We used released averages from MAYO01, MAYO02, and MAYO05 in OpenNeuro ds004774 version 1.0.0. The threshold factor stayed at 3.4. The source detector and peak finder were unchanged. Among 1,442 eligible traces, the minimum reduced calls from 177 to 34. Mean patient call rates were 12.23% without the minimum and 2.41% with it. Of 143 added calls, 82 passed the released trial similarity test after correction within each patient. The effect remained with a 20 mm distance exclusion and with surface stimulation only. An ECOG comparison showed the same direction. The three tested records had no valid manual SEEG response labels. Thus, the study does not show improved detection accuracy. The package preserves exact SEEG windows, source hashes, code, results, figures, both analysis plans, and reproduction commands.

SEEG · stereoelectroencephalography · evoked responses · ER-Detect · baseline standard deviation · response detection · intracranial EEG · OpenNeuro