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Access through your institution Buy or subscribe Social memory requires the recollection of both the familiarity of an individual and the details of previous encounters. Boyle, Posani et al.
show that, in mice, the hippocampal CA2 region enables both processes by using distinct strategies to represent familiar and unfamiliar mice. The authors used calcium imaging to record
activity in CA2 as mice interacted with conspecifics confined to particular locations. Using a linear decoder, they showed that CA2 population activity simultaneously represents a
conspecific’s identity and its spatial location. Furthermore, the familiarity of the conspecific is represented as an abstract variable, independent of identity or location. This is a
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* Log in * Learn about institutional subscriptions * Read our FAQs * Contact customer support REFERENCES ORIGINAL ARTICLE * Boyle, L. M. et al. Tuned geometries of hippocampal
representations meet the computational demands of social memory. _Neuron_ https://doi.org/10.1016/j.neuron.2024.01.021 (2024) Article PubMed Google Scholar Download references AUTHOR
INFORMATION AUTHORS AND AFFILIATIONS * Nature Reviews Neuroscience http://www.nature.com/nrn/ Katherine Whalley Authors * Katherine Whalley View author publications You can also search for
this author inPubMed Google Scholar CORRESPONDING AUTHOR Correspondence to Katherine Whalley. RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Whalley, K.
Social representation. _Nat. Rev. Neurosci._ 25, 210 (2024). https://doi.org/10.1038/s41583-024-00803-3 Download citation * Published: 04 March 2024 * Issue Date: April 2024 * DOI:
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