In two people, 17 of 19 visual-cortex SEEG contacts showed a smaller response to same-category image pairs; subject-level evidence appeared in one person

This analysis tested category-specific repetition suppression in broadband (70–170 Hz) responses from 19 visually responsive SEEG contacts in two people (OpenNeuro ds004194). In 17 of 19 contacts, the response was smaller when the second image was from the same category; the median normalized effect was 0.041 (95% CI 0.021–0.078; sign test p = 0.0007). Effects were largest in ventral and lateral occipitotemporal contacts. The contact-level effect was significant in only one person when contacts were averaged within person. A larger effect at long than short inter-stimulus intervals was significant across contacts, but not within either person, so it does not establish interval dependence. Only two people were studied, and contacts within a person share trial noise; these results do not support a population claim. The analysis used an independent NumPy pipeline and archived code, per-trial responses, summary results, logs, and input hashes. The analyzed files came from the anonymous OpenNeuro S3 mirror; their exact dataset release is not recorded.

category-specific repetition suppression · SEEG · visual cortex · broadband response · inter-stimulus interval · human neuroscience