Variability in medial prefrontal cortex responses to smiles in human infants is linked to genetic variation in the oxytocin system.

doi:10.1080/17470919.2026.2686726

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Article

Variability in medial prefrontal cortex responses to smiles in human infants is linked to genetic variation in the oxytocin system.

Social neuroscience - 1 Jun 2026

Grossmann Tobias

Abstract excerpt

Smiling plays a critical role in guiding behavior during social interactions from early in human ontogeny. The current study examined whether genetic variation in the oxytocin system is linked to individual differences in medial prefrontal cortex (mPFC) responses to smiles in human infants. Results show that genetic variation in CD38 (rs3796863), linked in prior work to variation in oxytocin release, is...

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Identifiers

PMID: 42257672
DOI: 10.1080/17470919.2026.2686726

Genes

CD38

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 8 Sept 2026.

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