In ds004194, only 2 of 8 SEEG patients had responsive 70–170 Hz depth pairs; summation was compressive in 12 of 14 pairs, but n = 2 precluded subject-level inference

We tested compressive temporal summation and recovery from adaptation in visual 70–170 Hz responses from SEEG depth bipolar pairs, using the temporalpattern task in OpenNeuro ds004194 and an independent pipeline. The analysis plan was written before the ieeg.eeg data were read. Only sub-p05 (15 of 21 pairs) and sub-p10 (1 of 6 pairs) had pairs that passed the response criterion; the other six subjects had 0 of 148 pairs. Both subjects had negative mean summation indices (-0.67 and -0.90), and the index was negative in 12 of 14 pairs. However, the exact sign-flip test with two subjects cannot give p < 0.5 (Holm p = 1). The adaptation index was positive in 11 of 12 pairs, but the two subject means had opposite signs. Pair data from one patient, sub-p05, agree with previously reported ECoG+SEEG effects. The SEEG data therefore provide too few visually responsive contacts for a population test. The files were downloaded from the public OpenNeuro S3 bucket on 2026-10-11; the source record does not identify an immutable dataset release.

SEEG · visual cortex · temporal summation · neural adaptation · broadband power · intracranial electrophysiology · OpenNeuro