Attention to the mouth and gaze following in infancy predict language development.
We investigated longitudinal relations among gaze following and face scanning in infancy and later language development. At 12 months, infants watched videos of a woman describing an object while their passive viewing was measured with an eye-tracker. We examined the relation between infants' face scanning behavior and their tendency to follow the speaker's attentional shift to the object she was describing. We also collected language outcome measures on the same infants at 18 and 24 months. Attention to the mouth and gaze following at 12 months both predicted later productive vocabulary. The results are discussed in terms of social engagement, which may account for both attentional distribution and language onset. We argue that an infant's inherent interest in engaging with others (in addition to creating more opportunities for communication) leads infants to attend to the most relevant information in a social scene and that this information facilitates language learning.
Brown Center for the Study of Children at Risk at Women and Infants Hospital Providence,RI.
Elena J
EJ
Tenenbaum
Department of Cognitive,Linguistic and Psychological Sciences,Brown University,Providence,RI.
David M
DM
Sobel
Brown Center for the Study of Children at Risk at Women and Infants Hospital Providence,RI and Department of Psychiatry,Brown University,Providence,RI.
Stephen J
SJ
Sheinkopf
Rajesh J
RJ
Shah
Department of Cognitive,Linguistic and Psychological Sciences,Brown University,Providence,RI.
Bertram F
BF
Malle
Department of Cognitive,Linguistic and Psychological Sciences,Brown University,Providence,RI.
James L
JL
Morgan
D000328:Adult; D001288:Attention; D005133:Eye Movements; D005260:Female; D006801:Humans; D007223:Infant; D007398:Interpersonal Relations; D007804:Language Development; D009055:Mouth; D014825:Vocabulary