Preferential looking to eyes versus mouth in early infancy: heritability and link to concurrent and later development.

Charlotte Viktorsson,Ana Maria Portugal,Danyang Li,Maja Rudling,Monica Siqueiros Sanchez,Kristiina Tammimies,Mark J Taylor,Angelica Ronald,Terje Falck-Ytter

Journal of child psychology and psychiatry, and allied disciplines（2023）

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摘要

These results suggest that individual differences in infants' preferential looking to eyes versus mouth to a substantial degree reflect genetic variation. The findings provide new leads on both the perceptual basis and the developmental consequences of these attentional biases.

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关键词

Twin design,eye-mouth index,language comprehension,visual attention

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