Genetic and environmental overlap between Chinese and English reading-related skills in Chinese children

Wai Lap Simpson WONG, Bonnie Wing-Yin CHOW, Suk Han Connie HO, Miu Yee Mary WAYE, Dorothy V. M. BISHOP

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6 Citations (Scopus)

Abstract

This twin study examined the relative contributions of genes and environment on 2nd language reading acquisition of Chinese-speaking children learning English. We examined whether specific skills—visual word recognition, receptive vocabulary, phonological awareness, phonological memory, and speech discrimination—in the 1st and 2nd languages have distinct or overlapping genetic and environmental origins. A sample of 279 Chinese twin pairs with a mean age of 6 years was tested. Univariate twin analyses were used to identify sources of individual variations in reading abilities and related cognitive–linguistic skills in Chinese and English, respectively. They were used to show both similar and distinctive patterns in these skills across Chinese and English. Bivariate Cholesky decomposition analyses indicated genetic overlaps between all parallel Chinese and English variables, as well as shared environmental overlaps in receptive vocabulary and phonological awareness. The phenotypic correlations between 1st and 2nd language skills previously observed in cross-linguistic studies could be explained by the shared genetic and environmental influences found in this twin study. Copyright © 2014 The Author(s).
Original languageEnglish
Pages (from-to)2539-2548
JournalDevelopmental Psychology
Volume50
Issue number11
DOIs
Publication statusPublished - Nov 2014

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Reading
Twin Studies
Language
Vocabulary
twin studies
Aptitude
Linguistics
vocabulary
language
Learning
speaking
Genes
linguistics
ability
learning
Recognition (Psychology)

Citation

Wong, S. W. L., Chow, B. W.-Y., Ho, C. S.-H., Way, M. M. Y., & Bishop, D. V. M. (2014). Genetic and environmental overlap between Chinese and English reading-related skills in Chinese children. Developmental Psychology, 50(11), 2539-2548.

Keywords

  • Twins
  • Chinese learners of English
  • Second language reading acquisition
  • Behavioral genetics
  • Cognitive–linguistic skills