Duchenne smile

a smile characterized by bilaterally symmetrical upturning of the lips and activation of the orbicularis oculi muscles surrounding the eyes, which creates a crow’s-foot effect at the corners of the eyes. Duchenne smiles are believed to be authentic smiles, as opposed to posed, voluntary non-Duchenne smiles that lack the orbicularis oculi component. [Guillaume Duchenne]

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Psychology term of the day

May 8th 2024

measures of intelligence

a series of norm-referenced tests used to determine an individual’s ability to learn, reason, understand concepts, and acquire knowledge. See EEG measures of intelligence; ERP measures of intelligence; fMRI measures of intelligence. See also assessment of intelligence.