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Quantitative genetics in the era of molecular genetics : learning abilities and disabilities as an example
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Haworth, Claire M. A. and Plomin, Robert (2010) Quantitative genetics in the era of molecular genetics : learning abilities and disabilities as an example. Journal of the American Academy of Child and Adolescent Psychiatry, Volume 49 (Number 8). pp. 783-793. doi:10.1016/j.jaac.2010.01.026 ISSN 1527-5418.
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Official URL: http://dx.doi.org/10.1016/j.jaac.2010.01.026
Abstract
Objective:
To consider recent findings from quantitative genetic research in the context of molecular genetic research, especially genome-wide association studies. We focus on findings that go beyond merely estimating heritability. We use learning abilities and disabilities as examples.
Method:
Recent twin research in the area of learning abilities and disabilities was reviewed.
Results:
Three findings from quantitative genetic research stand out for their far-reaching implications for child and adolescent psychiatry. First, common disorders such as learning difficulties are the quantitative extreme of the same genetic factors responsible for genetic influence throughout the normal distribution (the Common Disorders are Quantitative Traits Hypothesis). Second, the same set of genes is largely responsible for genetic influence across diverse learning and cognitive abilities and disabilities (the Generalist Genes Hypothesis). Third, experiences are just as influenced genetically as are behaviors and genetic factors mediate associations between widely used measures of the environment and behavioural outcomes (the Nature of Nurture Hypothesis).
Conclusions:
Quantitative genetics can go far beyond the rudimentary “how much” question about nature versus nurture, and can continue to provide important findings in the era of molecular genetics.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Psychology | ||||
Journal or Publication Title: | Journal of the American Academy of Child and Adolescent Psychiatry | ||||
Publisher: | Elsevier BV | ||||
ISSN: | 1527-5418 | ||||
Official Date: | August 2010 | ||||
Dates: |
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Volume: | Volume 49 | ||||
Number: | Number 8 | ||||
Page Range: | pp. 783-793 | ||||
DOI: | 10.1016/j.jaac.2010.01.026 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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