Neural signatures of natural behaviour in socializing macaques
Camille Testard (),
Sébastien Tremblay,
Felipe Parodi,
Ron W. DiTullio,
Arianna Acevedo-Ithier,
Kristin L. Gardiner,
Konrad Kording and
Michael L. Platt
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Camille Testard: University of Pennsylvania
Sébastien Tremblay: University of Pennsylvania
Felipe Parodi: University of Pennsylvania
Ron W. DiTullio: University of Pennsylvania
Arianna Acevedo-Ithier: University of Pennsylvania
Kristin L. Gardiner: University of Pennsylvania
Konrad Kording: University of Pennsylvania
Michael L. Platt: University of Pennsylvania
Nature, 2024, vol. 628, issue 8007, 381-390
Abstract:
Abstract Our understanding of the neurobiology of primate behaviour largely derives from artificial tasks in highly controlled laboratory settings, overlooking most natural behaviours that primate brains evolved to produce1–3. How primates navigate the multidimensional social relationships that structure daily life4 and shape survival and reproductive success5 remains largely unclear at the single-neuron level. Here we combine ethological analysis, computer vision and wireless recording technologies to identify neural signatures of natural behaviour in unrestrained, socially interacting pairs of rhesus macaques. Single-neuron and population activity in the prefrontal and temporal cortex robustly encoded 24 species-typical behaviours, as well as social context. Male–female partners demonstrated near-perfect reciprocity in grooming, a key behavioural mechanism supporting friendships and alliances6, and neural activity maintained a running account of these social investments. Confronted with an aggressive intruder, behavioural and neural population responses reflected empathy and were buffered by the presence of a partner. Our findings reveal a highly distributed neurophysiological ledger of social dynamics, a potential computational foundation supporting communal life in primate societies, including our own.
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:nat:nature:v:628:y:2024:i:8007:d:10.1038_s41586-024-07178-6
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DOI: 10.1038/s41586-024-07178-6
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