Science

Young infants see saliva sharing as a sign of a close bond, experiments suggest

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 06/10/2026, 21:55:24 UTC.

Briefings

A 2026 study suggests young infants recognize saliva sharing as a sign of a close bond, potentially indicating social learning begins early. The research indicates that infants may use this behavior to assess relationships, though the specific mechanisms and developmental stages remain under investigation.

Key points

• Infants as young as a few months old are observed to recognize and react to the act of saliva sharing between caregivers as a sign of a close bond.
• This behavior may serve as a social learning mechanism, allowing infants to understand relationships through observation of shared physical actions.

Context and limitations

The study relies on observational data from controlled environments; specific developmental stages and the exact cognitive mechanisms behind this recognition are not fully established.

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