AI Summary
This article discusses how the hippocampal CA2 region is involved in social memory by tuning the geometry of structured neural activity to meet the computational demands of familiarity detection and recollection of past social episodes.
Social memory consists of both familiarity detection and recollection of past social episodes. Whether and how the hippocampus fulfills these roles is unclear. Boyle, Posani, et al. find that the hippocampal CA2 region meets the distinct computational demands of these processes through tuning the geometry of structured neural activity.