Using polygenic profiles to predict variation in language and psychosocial outcomes in early and middle childhood

Dianne F. Newbury, Jenny L. Gibson, Gina Conti-Ramsden, Andrew Pickles, Kevin Durkin, Umar Toseeb

Research output: Contribution to journalArticle

3 Citations (Scopus)
8 Downloads (Pure)

Abstract

Purpose: Children with poor language tend to have worse psychosocial outcomes compared to their typically developing peers. The most common explanations for such adversities focus on developmental psychological processes whereby poor language triggers psychosocial difficulties. Here, we investigate the possibility of shared biological effects by considering whether the same genetic variants, which are thought to influence language development, are also predictors of elevated psychosocial difficulties during childhood. Method: Using data from the U.K.-based Avon Longitudinal Study of Parents and Children, we created a number of multi-single-nucleotide polymorphism polygenic profile scores, based on language and reading candidate genes (ATP2C2, CMIP, CNTNAP2, DCDC2, FOXP2, and KIAA0319, 1,229 single-nucleotide polymorphisms) in a sample of 5,435 children. Results: A polygenic profile score for expressive language (8 years) that was created in a discovery sample (n = 2,718) predicted not only expressive language (8 years) but also peer problems (11 years) in a replication sample (n = 2,717). Conclusions: These findings provide a proof of concept for the use of such a polygenic approach in child language research when larger data sets become available. Our indicative findings suggest consideration should be given to concurrent intervention targeting both linguistic and psychosocial development as early language interventions may not stave off later psychosocial difficulties in children.

Original languageEnglish
Pages (from-to)3381-3396
Number of pages16
JournalJournal of Speech, Language, and Hearing Research
Volume62
Issue number9
Early online date19 Aug 2019
DOIs
Publication statusPublished - 20 Sep 2019

Keywords

  • language skills
  • polygenic profiles
  • psychosocial outcomes

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