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Disentangling genetic and environmental influences on early language development: The interplay of genetic propensity for negative emotionality and surgency, and parenting behavior effects on early language skills in an adoption study.

Published version
Peer-reviewed

Repository DOI


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Abstract

Parenting and children's temperament are important influences on language development. However, temperament may reflect prior parenting, and parenting effects may reflect genes common to parents and children. In 561 U.S. adoptees (57% male) and their birth and rearing parents (70% and 92% White, 13% and 4% African American, and 7% and 2% Latinx, respectively), this study demonstrated how genetic propensity for temperament affects language development, and how this relates to parenting. Genetic propensity for negative emotionality inversely predicted language at 27 months (β = -.15) and evoked greater maternal warmth (β = .12), whereas propensity for surgency positively predicted language at 4.5 years (β = .20), especially when warmth was low. Parental warmth (β = .15) and sensitivity (β = .19) further contributed to language development, controlling for common gene effects.

Description

Publication status: Published


Funder: National Institutes of Health; doi: http://dx.doi.org/10.13039/100000002


Funder: U.S. Public Health Service; doi: http://dx.doi.org/10.13039/100007197

Keywords

Child, Humans, Male, Female, Parenting, Parents, Temperament, Cognition, Adoption

Journal Title

Child Dev

Conference Name

Journal ISSN

0009-3920
1467-8624

Volume Title

Publisher

Wiley
Sponsorship
Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01 HD042608)
National Institute of Mental Health (R01 MH092118)
National Institute on Drug Abuse (R01 DA020585, R01 DA035062)
NIH Office of the Director (UH3OD023389)