Cited by 1,425Neuroendocrine regulation and behaviorAttachment and Relationship DynamicsStress Responses and Cortisol

Neuroendocrine perspectives on social attachment and love

Sue Carter, C·1998·Psychoneuroendocrinology

Abstract

The purpose of this paper is to review existing behavioral and neuroendocrine perspectives on social attachment and love. Both love and social attachments function to facilitate reproduction, provide a sense of safety, and reduce anxiety or stress. Because social attachment is an essential component of love, understanding attachment formation is an important step toward identifying the neurobiological substrates of love. Studies of pair bonding in monogamous rodents, such as prairie voles, and maternal attachment in precocial ungulates offer the most accessible animal models for the study of mechanisms underlying selective social attachments and the propensity to develop social bonds. Parental behavior and sexual behavior, even in the absence of selective social behaviors, are associated with the concept of love; the analysis of reproductive behaviors, which is far more extensive than our understanding of social attachment, also suggests neuroendocrine substrates for love. A review of these literatures reveals a recurrent association between high levels of activity in the hypothalamic pituitary adrenal (HPA) axis and the subsequent expression of social behaviors and attachments. Positive social behaviors, including social bonds, may reduce HPA axis activity, while in some cases negative social interactions can have the opposite effect. Central neuropeptides, and especially oxytocin and vasopressin have been implicated both in social bonding and in the central control of the HPA axis. In prairie voles, which show clear evidence of pair bonds, oxytocin is capable of increasing positive social behaviors and both oxytocin and social interactions reduce activity in the HPA axis. Social interactions and attachment involve endocrine systems capable of decreasing HPA reactivity and modulating the autonomic nervous system, perhaps accounting for health benefits that are attributed to loving relationships.

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Crossref · 10.1016/s0306-4530(98)00055-9

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  • Animal model research points to a strong relationship between socially monogamous attachment behaviors and the expression of oxytocin within the brain, along with vasopressin and dopamine.

    “Animal model research points to a strong relationship between socially monogamous attachment behaviors and the expression of oxytocin within the brain—along with that of an affiliated peptide, vasopressin, and a suite of auxiliary hormones and neurotransmitters including dopamine.”
  • Anatomical investigations into the mating patterns of prairie voles and montane voles suggest that their dissimilar bonding strategies may turn upon systematic differences in the distribution of oxytocin and vasopressin receptor neurons in their brains.

    “Notably, anatomical investigations into the mating patterns of two closely-related species of vole—the monogamous prairie vole (Microtus ochrogaster) and the polygamous montane vole (Microtus montanus)—suggest that their dissimilar bonding strategies may turn upon systematic differences in the distribution of oxytocin and vasopressin receptor neurons in their brains [35].”
  • Oxytocin is a nonapeptide hormone associated with affiliative bonding in mammals and mediates social behavior, pair-bonding, and parental attachment across species.

    “OT is a nonapeptide hormone associated with affiliative bonding in mammals (Insel et al., 1997) that is known to mediate social behavior, pair-bonding, and parental attachment across a variety of species (Carter, 1998).”
  • The current findings lend some support to evolutionary models that parental and romantic attachment share underlying mechanisms mediated by the oxytocinergic system.

    “The current findings lend some support to evolutionary models suggesting that parental and romantic attachment share some underlying mechanisms and are mediated by the oxytocinergic system (Carter, 1998; Feldman, in press).”
  • Positive effects of touch from others are likely mediated by increased secretion of oxytocin.

    “positive effects are likely mediated by increased secretion of the neuropeptide oxytocin [6,[16], [17], [18], [19]].”

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Authors
Sue Carter, C.
Venue
Psychoneuroendocrinology
Publisher
Elsevier BV
Published
1998-11
Volume
23
Issue
8
Pages
779-818
ISSN
0306-4530 (ISSN-L)
OpenAlex
W2171095353
Cited by
1,425
References
203
Citations by year
2026: 14 · 2025: 38 · 2024: 34 · 2023: 42 · 2022: 29 · 2021: 44 · 2020: 56 · 2019: 48 · 2018: 45 · 2017: 103 · 2016: 70 · 2015: 85 · 2014: 76 · 2013: 82 · 2012: 82
FWCI
32.58
Type
journal article
Language
en
Open access
closed
Locations
  • Psychoneuroendocrinology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Social Sciences › Psychology › Social Psychology › Attachment and Relationship Dynamics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
social attachment, love, neuroendocrinology, pair bonding, Microtus ochrogaster, maternal attachment, hypothalamic-pituitary-adrenal axis, oxytocin, vasopressin, social bonding, reproductive behavior, autonomic nervous system, stress reduction, monogamy
MeSH terms
Animals, Child, Biological Evolution, Female, Humans, Hypothalamo-Hypophyseal System, Love, Male, Neurosecretory Systems, Object Attachment, Pair Bond, Parent-Child Relations, Pituitary-Adrenal System, Sexual Behavior, Social Behavior

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