Cited by 298Neuroendocrine regulation and behaviorInfant Health and DevelopmentStress Responses and Cortisol

Social vocalizations can release oxytocin in humans

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Seltzer, Leslie J., Ziegler, Toni E., Pollak, Seth D.·2010·Proceedings of the Royal Society B: Biological Sciences

Abstract

Vocalizations are important components of social behaviour in many vertebrate species, including our own. Less well-understood are the hormonal mechanisms involved in response to vocal cues, and how these systems may influence the course of behavioural evolution. The neurohormone oxytocin (OT) partly governs a number of biological and social processes critical to fitness, such as attachment between mothers and their young, and suppression of the stress response after contact with trusted conspecfics. Rodent studies suggest that OT's release is contingent upon direct tactile contact with such individuals, but we hypothesized that vocalizations might be capable of producing the same effect. To test our hypothesis, we chose human mother-daughter dyads and applied a social stressor to the children, following which we randomly assigned participants into complete contact, speech-only or no-contact conditions. Children receiving a full complement of comfort including physical, vocal and non-verbal contact showed the highest levels of OT and the swiftest return to baseline of a biological marker of stress (salivary cortisol), but a strikingly similar hormonal profile emerged in children comforted solely by their mother's voice. Our results suggest that vocalizations may be as important as touch to the neuroendocrine regulation of social bonding in our species.

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  • Wismer Fries et al. reported that urinary oxytocin and vasopressin in orphans were affected by early neglect, but their reported levels were nearly a million-fold too high for both peptides, using a method neither sensitive nor selective enough to measure either peptide in urine; the report drew criticism, and the authors later improved their methodology.

    “The discrepancy between measurements in unextracted and extracted plasma is two orders of magnitude, but when Wismer Fries et al. reported that urinary excretion of oxytocin and vasopressin in orphans was affected by early neglect, they reported levels that were, for both peptides, nearly a million fold too high, after applying a method that was neither sensitive enough or selective enough to”

    From Intranasal Oxytocin: Myths and Delusions (2016) · cites this paper as [75]

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  • Slight variation to social circumstances may impact endogenous oxytocin release.

    “Recent evidence also suggests that slight variation to social circumstances may impact on endogenous oxytocin release (Grewen et al., 2005; Zak et al., 2005; Seltzer et al., 2010; Kéri and Kiss, 2011).”
  • Urinary oxytocin levels were only raised following a stressor when the stressor was followed by a comforting vocal or physical contact with subjects' mothers.

    “Seltzer et al. (2010) showed that urinary oxytocin levels were only raised following a stressor when the stressor was followed by a comforting vocal or physical contact with subjects' mothers.”
  • There is some evidence that oxytocin release is more likely during interactions with certain individuals, such as bond partners.

    “There is some evidence that oxytocin release is more likely during interactions with certain individuals, such as bond partners (Seltzer et al., 2010; Crockford et al., 2013).”
  • In the control condition, where exposure to a stressor was followed by subjects watching a film on their own, elevated salivary cortisol but not urinary oxytocin levels were detected.

    “In the control condition, where exposure to a stressor was followed by subjects watching a film on their own, elevated salivary cortisol but not urinary oxytocin levels were detected.”

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Authors
Seltzer, L. J., Ziegler, T. E., & Pollak, S. D.
Affiliations
  • University of Wisconsin–Madison (US)
  • Wisconsin National Primate Research Center, Madison, WI 53705, USA
Corresponding author
Seltzer, Leslie J.
Venue
Proceedings of the Royal Society B: Biological Sciences
Published
2010-05-12
Volume
277
Issue
1694
Pages
2661-2666
ISSN
  • 0080-4649 (ISSN-L)
  • 0962-8452
  • 1471-2954
OpenAlex
W2163078327
Cited by
298
References
45
Citations by year
2026: 11 · 2025: 7 · 2024: 10 · 2023: 13 · 2022: 14 · 2021: 30 · 2020: 29 · 2019: 23 · 2018: 21 · 2017: 24 · 2016: 24 · 2015: 29 · 2014: 21 · 2013: 16 · 2012: 9
FWCI
18.28
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the Royal Society B Biological Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Mental Health (MH61285, R01MH061285)
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Health Sciences › Health Professions › Pharmacy › Infant Health and Development
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
oxytocin, social vocalizations, mother-daughter dyads, social stress, salivary cortisol, touch, social bonding, neuroendocrine regulation, evolution of behavior
MeSH terms
Adult, Child, Cues, Female, Humans, Hydrocortisone, Mothers, Oxytocin, Saliva, Social Behavior, Stress, Psychological, Verbal Behavior

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