title: Input and uptake at 7 months predicts toddler vocabulary: the role of child-directed speech and infant processing skills in language development.
abstract: Both the input directed to the child, and the child's ability to process that input, are likely to impact the child's language acquisition. We explore how these factors inter-relate by tracking the relationships among: (a) lexical properties of maternal child-directed speech to prelinguistic (7-month-old) infants (N = 121); (b) these infants' abilities to segment lexical targets from conversational child-directed utterances in an experimental paradigm; and (c) the children's vocabulary outcomes at age 2;0. Both repetitiveness in maternal input and the child's speech segmentation skills at age 0;7 predicted language outcomes at 2;0; moreover, while these factors were somewhat inter-related, they each had independent effects on toddler vocabulary skill, and there was no interaction between the two.
authors: University of Maryland,USA.
authors: Rochelle S
authors: RS
authors: Newman
authors: Harvard University,USA.
authors: Meredith L
authors: ML
authors: Rowe
authors: University of Maryland,USA.
authors: Nan
authors: N
authors: Bernstein Ratner
mesh_terms: D002648:Child; D002663:Child Language; D002675:Child, Preschool; D003142:Communication; D032882:Comprehension; D005260:Female; D006801:Humans; D007223:Infant; D007804:Language Development; D008297:Male; D009034:Mother-Child Relations; D013067:Speech Perception; D014705:Verbal Behavior; D014825:Vocabulary