Month: August 2026

This is a placeholder page. I will post the .pdf as soon as it is live.

Hippocampal subfields support human novelty detection via distinct signals Link: https://www.biorxiv.org/content/10.64898/2026.09.08.748144v1 Detecting novelty is fundamental to adaptive memory, yet the neural comparisons that allow new events to be distinguished from prior experience are not fully understood. Hippocampal novelty signals are often framed as associative comparator responses that register violations of learned relationships. However, recognition memory models also predict a broader form of comparison: a global, item-based mismatch between an incoming stimulus and aggregate memory traces. Whether such global matching is implemented within human hippocampal circuitry, and whether it contributes to memory decisions, remains unknown. Using ultra-high-field 7T fMRI during dense…