Effects of Maternal Input on Language in the Absence of Genetic Confounds: Vocabulary Development in Internationally Adopted Children
Shafto, Carissa L.
MetadataShow full item record
CitationShafto, Carissa L., Joy Geren, and Jesse Snedeker. 2010. Effects of maternal input on language in the absence of genetic confounds: Vocabulary development in internationally adopted children. In CogSci 2010: Proceedings of the 32nd Annual Meeting of the Cognitive Science Society: August 11-14, 2010, Portland, Oregon, ed. Stellan Ohlsson and Richard Catrambone, 2775-2780. Austin, TX: Cognitive Science Society.
AbstractParents provide children with both genes (nature) and linguistic input (nurture). A growing body of research demonstrates that individual differences in children's language are correlated with differences in parental speech. Although this suggests a causal link between parental input and the pace of language development, these correlations could reflect effects of shared genes on language, rather than a causal link between input and outcome. We explored effects of maternal input on English vocabulary development in internationally-adopted (IA) children - a population with no genetic confound. IA preschoolers demonstrated some of the same correlations with input as in previous studies; specifically, measures of input quality were significantly correlated with vocabulary. However, IA infants did not demonstrate this pattern. Differences between the age groups may be related to the pace of acquisition; more rapid vocabulary development in the preschoolers suggests that access to, and children's ability to make use of input, may be a limiting factor for the infants.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:9978130
- FAS Scholarly Articles