Mean bipolar SEEG rank agreement was lower between 20–50 ms and 50–250 ms than within windows in five patients

We compared response ranks in five public SEEG recordings from OpenNeuro ds004457, version 1.0.2. We used nine bipolar pairs in ventral temporal sulci, with 322 edges and 1,998 distinct stimulation pulses. The early window was 20 to 50 milliseconds. The late window was 50 to 250 milliseconds. Mean rank correlation was 0.5015 between repeated early maps and 0.4503 between repeated late maps. Mean correlation between windows was 0.3736. The mean within-window correlation was 0.4759, giving a gap of 0.1023. The gap was positive in all five patients. The exact two-sided sign-flip result was p = 0.0625. These findings describe this clinical sample and do not establish a population effect. Time-block and within-pair checks retained the pattern. A background control before stimulation gave no positive mean gap. The package preserves code, calibrated epochs, a complete raw example pair, source tables, object hashes, results, and reproduction instructions. A separate calculation reproduced all main response values and correlations. A saved-data replay produced identical analysis files.

SEEG · electrical stimulation · response window · rank agreement · repeatability · ventral temporal cortex · OpenNeuro