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Sci Rep. 2017 Oct 11;7(1):12935. doi: 10.1038/s41598-017-13109-5.

Preference for novel faces in male infant monkeys predicts cerebrospinal fluid oxytocin concentrations later in life.

Author information

1
Neurosciences Program, Stanford University, Stanford, CA, 94305, USA. jemadrid@stanford.edu.
2
Department of Psychiatry and Behavioural Sciences, Stanford University, Stanford, CA, 94305, USA. jemadrid@stanford.edu.
3
Department of Psychiatry and Behavioural Sciences, Stanford University, Stanford, CA, 94305, USA.
4
California National Primate Research Centre, University of California Davis, Davis, CA, 95616, USA.
5
Winnicott Research Unit, University of Reading, RG6 6AL, Reading, UK.
6
Department of Psychology, University of California Davis, Davis, CA, 95616, USA.
7
Department of Comparative Medicine, Stanford University, Stanford, CA, 94305, USA.
8
Department of Psychiatry and Behavioural Sciences, Stanford University, Stanford, CA, 94305, USA. kjparker@stanford.edu.
9
California National Primate Research Centre, University of California Davis, Davis, CA, 95616, USA. kjparker@stanford.edu.

Abstract

The ability to recognize individuals is a critical skill acquired early in life for group living species. In primates, individual recognition occurs predominantly through face discrimination. Despite the essential adaptive value of this ability, robust individual differences in conspecific face recognition exist, yet its associated biology remains unknown. Although pharmacological administration of oxytocin has implicated this neuropeptide in face perception and social memory, no prior research has tested the relationship between individual differences in face recognition and endogenous oxytocin concentrations. Here we show in a male rhesus monkey cohort (N = 60) that infant performance in a task used to determine face recognition ability (specifically, the ability of animals to show a preference for a novel face) robustly predicts cerebrospinal fluid, but not blood, oxytocin concentrations up to five years after behavioural assessment. These results argue that central oxytocin biology may be related to individual face perceptual abilities necessary for group living, and that these differences are stable traits.

PMID:
29021623
PMCID:
PMC5636831
DOI:
10.1038/s41598-017-13109-5
[Indexed for MEDLINE]
Free PMC Article

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