Cited by 132Neuroendocrine regulation and behaviorFace Recognition and PerceptionPrimate Behavior and Ecology

Oxytocin blunts social vigilance in the rhesus macaque

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Ebitz, R. Becket, Watson, Karli K., Platt, Michael L.·2013·Proceedings of the National Academy of Sciences

Abstract

Exogenous application of the neuromodulatory hormone oxytocin (OT) promotes prosocial behavior and can improve social function. It is unclear, however, whether OT promotes prosocial behavior per se, or whether it facilitates social interaction by reducing a state of vigilance toward potential social threats. To disambiguate these two possibilities, we exogenously delivered OT to male rhesus macaques, which have a characteristic pattern of species-typical social vigilance, and examined their performance in three social attention tasks. We first determined that, in the absence of competing task demands or goals, OT increased attention to faces and eyes, as in humans. By contrast, OT reduced species typical social vigilance for unfamiliar, dominant, and emotional faces in two additional tasks. OT eliminated the emergence of a typical state of vigilance when dominant face images were available during a social image choice task. Moreover, OT improved performance on a reward-guided saccade task, despite salient social distractors: OT reduced the interference of unfamiliar faces, particularly emotional ones, when these faces were task irrelevant. Together, these results demonstrate that OT suppresses vigilance toward potential social threats in the rhesus macaque. We hypothesize that a basic role for OT in regulating social vigilance may have facilitated the evolution of prosocial behaviors in humans.

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Authors
Ebitz, R. B., Watson, K. K., & Platt, M. L.
Affiliations
Duke University (US)
Venue
Proceedings of the National Academy of Sciences
Published
2013-06-24
Volume
110
Issue
28
Pages
11630-11635
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2028239280
Cited by
132
References
55
Citations by year
2026: 3 · 2025: 5 · 2024: 7 · 2023: 6 · 2022: 10 · 2021: 8 · 2020: 4 · 2019: 10 · 2018: 18 · 2017: 15 · 2016: 9 · 2015: 12 · 2014: 17 · 2013: 7 · 2012: 1
FWCI
22.23
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Mental Health (MH086712, R01MH086712, R01MH089484, R01MH096875, R01MH095894)
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Face Recognition and Perception
  • Social Sciences › Psychology › Social Psychology › Primate Behavior and Ecology
Keywords
oxytocin, social vigilance, rhesus monkeys, prosocial behavior, social attention, face attention, emotional facial expressions, social danger
MeSH terms
Animals, Behavior, Animal, Macaca mulatta, Oxytocin, Saccades, Social Behavior

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