Cited by 307Neuroendocrine regulation and behaviorOlfactory and Sensory Function StudiesNeuropeptides and Animal Physiology

The social deficits of the oxytocin knockout mouse

Winslow, J.T., Insel, T.R.·2002·Neuropeptides

Abstract

Numerous studies have implicated oxytocin (OT) and oxytocin receptors in the central mediation of social cognition and social behavior. Much of our understanding of OT's central effects depends on pharmacological studies with OT agonists and antagonists. Recently, our knowledge of OT's effects has been extended by the development of oxytocin knockout (OTKO) mice. Mice with a null mutation of the OT gene manifest several interesting cognitive and behavioral changes, only some of which were predicted by pharmacological studies. Contrary to studies in rats, mice do not appear to require OT for normal sexual or maternal behavior, though OT is necessary for the milk ejection reflex during lactation. OTKO pups thrive if raised by a lactating female, but OTKO pups emit fewer ultrasonic vocalizations with maternal separation and OTKO adults are more aggressive than WT mice. Remarkably, OTKO mice fail to recognize familiar conspecifics after repeated social encounters, though olfactory and non-social memory functions appear to be intact. Central OT administration into the amygdala restores social recognition. The development of transgenic mice with specific deficits in social memory represents a promising approach to examine the cellular and neural systems of social cognition. These studies may provide valuable new perspectives on diseases characterized by social deficits, such as autism or reactive attachment disorder.

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Crossref · 10.1054/npep.2002.0909

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Authors
Winslow, J. T., & Insel, T. R.
Affiliations
Emory University (US)
Venue
Neuropeptides
Publisher
Elsevier BV
Published
2002-04
Volume
36
Issue
2-3
Pages
221-229
ISSN
0143-4179 (ISSN-L)
OpenAlex
W2082859469
Cited by
307
References
69
Citations by year
2026: 5 · 2025: 8 · 2024: 8 · 2023: 11 · 2022: 13 · 2021: 12 · 2020: 10 · 2019: 7 · 2018: 21 · 2017: 16 · 2016: 14 · 2015: 15 · 2014: 7 · 2013: 11 · 2012: 21
FWCI
17.23
Type
journal article
Language
en
Open access
closed
Locations
  • Neuropeptides (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Life Sciences › Neuroscience › Sensory Systems › Olfactory and Sensory Function Studies
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
Keywords
oxytocin, social behavior, social cognition, social recognition memory, amygdala, ultrasonic vocalizations, maternal separation, aggression, milk ejection reflex, autism spectrum disorder, reactive attachment disorder, social dysfunction
MeSH terms
Animals, Behavior, Animal, Brain Chemistry, Female, Male, Maternal Behavior, Oxytocin, Phenotype, Social Behavior, Tissue Distribution, Mice, Knockout, Mice, Rats

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