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Genetic influences in different aspects of language development: the etiology of language skills in 4.5-year-old twins
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posted on 2023-06-08, 14:32 authored by Yulia Kovas, Marianna E Hayiou-Thomas, Bonamy Oliver, Philip S Dale, Dorothy V M Bishop, Robert PlominThe genetic and environmental etiologies of diverse aspects of language ability and disability, including articulation, phonology, grammar, vocabulary, and verbal memory, were investigated in a U.K. sample of 787 pairs of 4.5-year-old same-sex and opposite-sex twins. Moderate genetic influence was found for all aspects of language in the normal range. A similar pattern was found at the low end of the distribution with the exception of two receptive measures. Environmental influence was mainly due to nonshared factors, unique to the individual, with little influence from shared environment for most measures. Genetic and environmental influences on language ability and disability are quantitatively and qualitatively similar for males and females.
History
Publication status
- Published
Journal
Child DevelopmentISSN
0009-3920Publisher
WileyExternal DOI
Issue
3Volume
76Page range
632-651Department affiliated with
- Psychology Publications
Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2013-03-05Usage metrics
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