Cited by 12Neuroendocrine regulation and behaviorNeurotransmitter Receptor Influence on BehaviorInfant Health and Development

Maternal dopamine encodes affective signals of human infants

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Zeevi, Lior, Irani, Merav, Catana, Ciprian, Feldman Barrett, Lisa, Atzil, Shir·2022·Social Cognitive and Affective Neuroscience

Abstract

Mothers are highly responsive to their offspring. In non-human mammals, mothers secrete dopamine in the nucleus accumbens (NAcc) in response to their pups. Yet, it is still unknown which aspect of the offspring behavior elicits dopaminergic responses in mothers. Here, we tested whether infants’ affective signals elicit dopaminergic responses in the NAcc of human mothers. First, we conducted a behavioral analysis on videos of infants’ free play and quantified the affective signals infants spontaneously communicated. Then, we presented the same videos to mothers during a magnetic resonance-positron emission tomography scan. We traced the binding of [11C]raclopride to free D2/3-type receptors to assess maternal dopaminergic responses during the infant videos. When mothers observed videos with many infant signals during the scan, they had less [11C]raclopride binding in the right NAcc. Less [11C]raclopride binding indicates that less D2/3 receptors were free, possibly due to increased endogenous dopamine responses to infants’ affective signals. We conclude that NAcc D2/3 receptors are involved in maternal responsiveness to affective signals of human infants. D2/3 receptors have been associated with maternal responsiveness in nonhuman animals. This evidence supports a similar mechanism in humans and specifies infant-behaviors that activate the maternal dopaminergic system, with implications for social neuroscience, development and psychopathology.

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  • In human mothers, behavioral synchrony between mother and infant is related to changes in endogenous dopamine and the functional connectivity of the nucleus accumbens, medial amygdala, and medial prefrontal cortex.

    “In human mothers, behavioral synchrony between mother and infant is related to changes in endogenous DA and the functional connectivity of the NAc, MeA, and the medial (mPFC), together comprising the MeA network implicated in social functioning [43,44].”

    From The Neurobiology of Love and Pair Bonding from Human and Animal Perspectives (2023) · cites this paper as [44]

    The Method (Participants; page unavailable) says this paper follows up on a study in the same mothers that linked maternal attunement to dopamine responses. Its Conclusion (page unavailable) reports that mothers’ nucleus accumbens D2/3 receptor occupancy was sensitive to infants’ affective signals. The cited paper does not establish the claimed relationship with mother–infant behavioral synchrony or functional connectivity among the nucleus accumbens, medial amygdala, and medial prefrontal cortex. (LLM, conf=0.87)

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Authors
Zeevi, L., Irani, M., Catana, C., Feldman Barrett, L., & Atzil, S.
Affiliations
  • Hebrew University of Jerusalem (IL)
  • Harvard University (US)
  • Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
Corresponding author
Atzil, Shir
Venue
Social Cognitive and Affective Neuroscience
Published
2021-11-09
Volume
17
Issue
5
Pages
503-509
ISSN
  • 1749-5016 (ISSN-L)
  • 1749-5024
OpenAlex
W3212923205
Cited by
12
References
62
Citations by year
2026: 4 · 2025: 2 · 2024: 3 · 2023: 3
FWCI
1.47
Type
journal article
Language
en
Open access
Locations
  • Social Cognitive and Affective Neuroscience (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
Funders
National Institute of Child Health and Human Development (R21HD076164)
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Health Professions › Pharmacy › Infant Health and Development
Keywords
nucleus accumbens, maternal responsiveness, [11C]raclopride PET, mother-infant interaction, social neuroscience
MeSH terms
Animals, Dopamine, Humans, Mammals, Nucleus Accumbens, Receptors, Dopamine D2, Raclopride, Positron-Emission Tomography

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