Cited by 115Neuroendocrine regulation and behaviorStress Responses and CortisolNeuropeptides and Animal Physiology

The oxytocin system promotes resilience to the effects of neonatal isolation on adult social attachment in female prairie voles

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Barrett, C E, Arambula, S E, Young, L J·2015·Translational Psychiatry

Abstract

Genes and social experiences interact to create variation in social behavior and vulnerability to develop disorders of the social domain. Socially monogamous prairie voles display remarkable diversity in neuropeptide receptor systems and social behavior. Here, we examine the interaction of early-life adversity and brain oxytocin receptor (OTR) density on adult social attachment in female prairie voles. First, pups were isolated for 3 h per day, or unmanipulated, from postnatal day 1–14. Adult subjects were tested on the partner preference (PP) test to assess social attachment and OTR density in the brain was quantified. Neonatal social isolation impaired female PP formation, without affecting OTR density. Accumbal OTR density was, however, positively correlated with the percent of time spent huddling with the partner in neonatally isolated females. Females with high accumbal OTR binding were resilient to neonatal isolation. These results are consistent with the hypothesis that parental nurturing shapes neural systems underlying social relationships by enhancing striatal OTR signaling. Thus, we next determined whether early touch, mimicking parental licking and grooming, stimulates hypothalamic OT neuron activity. Tactile stimulation induced immediate-early gene activity in OT neurons in neonates. Finally, we investigated whether pharmacologically potentiating OT release using a melanocortin 3/4 agonist, melanotan-II (10 mg kg−1 subcutaneously), would mitigate the social isolation-induced impairments in attachment behavior. Neonatal melanotan-II administration buffered against the effects of early isolation on partner preference formation. Thus, variation in accumbal OTR density and early OT release induced by parental nurturing may moderate susceptibility to early adverse experiences, including neglect.

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  • Repeated neonatal social isolations disrupt adult pair-bonding in voles with low accumbens receptor density but not in those with high receptor density.

    “Repeated neonatal social isolations (modeling neglect) disrupt adult pair-bonding in voles with low accumbens receptor density but not in those with high receptor density, suggesting that accumbens oxytocin signaling promotes resilience to early-life neglect (Barrett et al. 2015).”

    From Oxytocin, Neural Plasticity, and Social Behavior (2021) · cites this paper as Barrett et al. 2015

    In Experiment 1 (Results), early-isolated females with low accumbens oxytocin receptor binding did not show a partner preference, whereas those with high binding did. The claim says “voles” without specifying females; the Discussion calls the male data inconclusive, so the finding cannot be extended to males. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Accumbens oxytocin signaling promotes resilience to early-life neglect.

    “suggesting that accumbens oxytocin signaling promotes resilience to early-life neglect (Barrett et al. 2015).”

    From Oxytocin, Neural Plasticity, and Social Behavior (2021) · cites this paper as Barrett et al. 2015

  • Melanocortin receptor agonists facilitate OT-dependent partner preferences in prairie voles.

    “facilitate OT-dependent partner preferences in prairie voles (35, 37, 39, 40)”
  • Prairie vole females that experienced early-life separation from parents and littermates for 3 h per day for the first two weeks of life displayed an impairment in the ability to form pair bonds as adults.

    “As adults, females that experienced this early-life separation, modeling parental neglect, displayed an impairment in the ability to form pair bonds.”
  • Some females were resilient to early-life neglect and formed bonds normally, while others were susceptible and unable to form bonds.

    “Interestingly, not all females responded in the same way to this early neglect; some were resilient, forming bonds normally, while others were susceptible and unable to form bonds.”

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Authors
Barrett, C. E., Arambula, S. E., & Young, L. J.
Affiliations
Emory University (US)
Corresponding author
Barrett, C E
Venue
Translational Psychiatry
Published
2015-07-21
Volume
5
Issue
7
Pages
e606-e606
ISSN
2158-3188 (ISSN-L)
OpenAlex
W1033049088
Cited by
115
References
114
Citations by year
2026: 6 · 2025: 3 · 2024: 7 · 2023: 8 · 2022: 11 · 2021: 13 · 2020: 9 · 2019: 12 · 2018: 12 · 2017: 16 · 2016: 12 · 2015: 6
FWCI
25.09
Type
journal article
Language
en
Open access
Locations
  • Translational Psychiatry (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation
  • Autism Speaks
  • National Institutes of Health (P51OD011132)
  • Yerkes National Primate Research Center, Emory University (P51OD11132, /OD P51OD11132)
  • National Institute of Mental Health (R01MH096983, P50MH100023)
  • National Institute of General Medical Sciences (R01GM085391)
  • National Institute of Neurological Disorders and Stroke (T32NS096050)
  • Office of Research Infrastructure Programs, National Institutes of Health
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
Keywords
oxytocin receptor, neonatal isolation, social attachment, mate preferences, Microtus ochrogaster, childhood adversity, melanotan II, social monogamy, female social behavior
MeSH terms
alpha-MSH, Animals, Animals, Newborn, Arvicolinae, Female, Object Attachment, Oxytocin, Peptides, Cyclic, Social Behavior, Social Isolation, Vasopressins, Gene Expression, Receptors, Oxytocin, Receptors, Melanocortin, Resilience, Psychological

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