Three-month-old Elizabeth looks at her mother and smiles.Researchers call this a(n) _____ smile.

Question

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A social smile is a response to a social stimuli, such as the presence of another person. The fact that Elizabeth is looking at her mother when she smiles indicates that this is a social smile, rather than a reflexive smile which occurs in response to a physical stimulus, or an attachment smile which occurs when a child is reunited with their primary caregiver. Trust is not a commonly used term to describe a type of smile.

Three-Month-Old Elizabeth Looks at Her Mother and Smiles