Oxytocin reduces food sharing in capuchin monkeys by modulating social distance
Abstract
Recent evidence indicates that oxytocin plays an important role in promoting prosocial behaviour amongst humans and other species. We tested whether oxytocin affected cooperation and food-sharing in capuchin monkeys, a highly cooperative New World primate. Subjects received either 2IU oxytocin or an inert adjuvent intranasally prior to each session. Oxytocin influenced food sharing in capuchins in ways we did not anticipate. Recipients were less likely to passively acquire food from possessors when either individual had received OT than in the control, and also spent less time in proximity to their partner. Passive food sharing requires proximity, and oxytocin decreased the capuchins’ typical congregating behaviour, apparently resulting in decreased sharing. We propose that the likely mechanism for increased social distance is the known anxiolytic effect of oxytocin. Our results indicate a need to consider how oxytocin affects the context of interactions and interacts with modes of sociality unique to each species.
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Capuchins treated with a small IN dose of Leu8-OT showed reduced prosocial food sharing.
“Capuchins treated with a small IN dose of Leu8-OT showed reduced prosocial food sharing (Brosnan et al., 2015).”
From Neuropeptide diversity and the regulation of social behavior in New World primates (2016) · cites this paper as Brosnan et al., 2015
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- Authors
- Brosnan, S. F., Talbot, C. F., Essler, J. L., Leverett, K., Flemming, T., Dougall, P., Heyler, C., & Zak, P. J.
- Affiliations
- Georgia State University (US)
- Claremont Graduate University (US)
- Venue
- Behaviour
- Publisher
- Walter de Gruyter GmbH
- Published
- 2015
- Volume
- 152
- Issue
- 7-8
- Pages
- 941-961
- ISSN
- 0005-7959 (ISSN-L)
- 1568-539X
- OpenAlex
- W15245611
- Cited by
- 30
- References
- 75
- Citations by year
- 2025: 1 · 2024: 2 · 2023: 1 · 2022: 3 · 2021: 3 · 2020: 1 · 2019: 4 · 2018: 3 · 2017: 3 · 2016: 5 · 2015: 4
- FWCI
- 8.19
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Behaviour (publishedVersion)
- Topics
- Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
- Social Sciences › Psychology › Social Psychology › Primate Behavior and Ecology
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Human-Animal Interaction Studies
- Keywords
- oxytocin, food sharing, capuchin monkeys, social distance, prosocial behavior, cooperation, anxiolytic effects, social proximity, intranasal administration, primate sociality
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