Cited by 133Neuroendocrine regulation and behaviorNeurotransmitter Receptor Influence on BehaviorNeuropeptides and Animal Physiology

Activation of μ-Opioid Receptors in the Dorsal Striatum is Necessary for Adult Social Attachment in Monogamous Prairie Voles

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Burkett, James P, Spiegel, Lauren L, Inoue, Kiyoshi, Murphy, Anne Z, Young, Larry J·2011·Neuropsychopharmacology

Abstract

Despite significant evidence that opioids are involved in attachment by mediating social reward and motivation, the role of opioids in the formation of adult social attachments has not been explored. We used the socially monogamous prairie vole (Microtus ochrogaster) to explore the role of endogenous opioids in social bonding by examining partner preference formation in female prairie voles. We hypothesized that μ-opioid receptors (MORs) in the striatum have a critical role in partner preference formation. We therefore predicted that peripheral administration of an opioid receptor antagonist would inhibit partner preference formation, and more specifically, that μ-opioid selective receptor blockade within the striatum would inhibit partner preference formation. To test our hypotheses, we first administered the non-selective opioid antagonist naltrexone peripherally to females during an 18-h cohabitation with a male and later tested the female with a partner preference test (PPT). Females showed a dose schedule-dependent decrease in partner preference in the PPT, with females in the continuous dose group displaying stranger preferences. Next, we administered microinjections of the MOR selective antagonist D-Phe-Cys-Tyr-D-Trp-Arg-Thr-Pen-Thr-NH2 (CTAP) into either the nucleus accumbens shell (NAS) or the caudate-putamen (CP) immediately before a 24-h cohabitation with a male, and later tested the female with a PPT. Females receiving CTAP into the CP, but not the NAS, showed no preference in the PPT, indicating an inhibition of partner preference formation. We show here for the first time that MORs modulate partner preference formation in female prairie voles by acting in the CP.

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Authors
Burkett, J. P., Spiegel, L. L., Inoue, K., Murphy, A. Z., & Young, L. J.
Affiliations
  • Emory University (US)
  • Georgia State University (US)
Corresponding author
Young, Larry J
Venue
Neuropsychopharmacology
Published
2011-07-06
Volume
36
Issue
11
Pages
2200-2210
ISSN
  • 0893-133X (ISSN-L)
  • 1740-634X
OpenAlex
W2140104467
Cited by
133
References
87
Citations by year
2026: 9 · 2025: 9 · 2024: 5 · 2023: 2 · 2022: 9 · 2021: 6 · 2020: 4 · 2019: 6 · 2018: 9 · 2017: 12 · 2016: 18 · 2015: 11 · 2014: 9 · 2013: 15 · 2012: 7
FWCI
13.92
Type
journal article
Language
en
Open access
Locations
  • Neuropsychopharmacology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (P51OD011132)
  • U.S. Public Health Service (077776)
  • Yerkes National Primate Research Center, Emory University
  • National Institute of Mental Health (MH-64692, K02MH064692)
  • National Center for Research Resources (RR-0165, P51RR000165)
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
Keywords
mu-opioid receptor, Microtus ochrogaster, social attachment, mate preferences, dorsal striatum, caudate-putamen, nucleus accumbens shell, naltrexone, CTAP, opioid antagonists, social bonding, monogamy
MeSH terms
Age Factors, Animals, Corpus Striatum, Arvicolinae, Female, Male, Microinjections, Naltrexone, Pair Bond, Sexual Behavior, Animal, Social Behavior, Receptors, Opioid, mu, Opioid Peptides

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