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Learning abilities and disabilities : generalist genes in early adolescence
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Davis, Oliver S. P., Haworth, Claire M. A. and Plomin, Robert (2009) Learning abilities and disabilities : generalist genes in early adolescence. Cognitive Neuropsychiatry, Volume 14 (Number 4-5). pp. 312-331. doi:10.1080/13546800902797106 ISSN 1354-6805.
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Official URL: http://dx.doi.org/10.1080/13546800902797106
Abstract
Introduction. The new view of cognitive neuropsychology that considers not just case studies of rare severe disorders but also common disorders, as well as normal variation and quantitative traits, is more amenable to recent advances in molecular genetics, such as genome-wide association studies, and advances in quantitative genetics, such as multivariate genetic analysis. A surprising finding emerging from multivariate quantitative genetic studies across diverse learning abilities is that most genetic influences are shared: they are “generalist”, rather than “specialist”. Methods We exploited widespread access to inexpensive and fast Internet connections in the United Kingdom to assess over 5000 pairs of 12-year-old twins from the Twins Early Development Study (TEDS) on four distinct batteries: reading, mathematics, general cognitive ability (g) and, for the first time, language. Results. Genetic correlations remain high among all of the measured abilities, with language as highly correlated genetically with g as reading and mathematics. Conclusions. Despite developmental upheaval, generalist genes remain important into early adolescence, suggesting optimal strategies for molecular genetic studies seeking to identify the genes of small effect that influence learning abilities and disabilities.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Psychology | ||||
Journal or Publication Title: | Cognitive Neuropsychiatry | ||||
Publisher: | Psychology Press | ||||
ISSN: | 1354-6805 | ||||
Official Date: | 2009 | ||||
Dates: |
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Volume: | Volume 14 | ||||
Number: | Number 4-5 | ||||
Page Range: | pp. 312-331 | ||||
DOI: | 10.1080/13546800902797106 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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