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The genetic relationship between individual differences in social and nonsocial behaviours characteristic of autism
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The genetic relationship between individual differences in social and nonsocial behaviours characteristic of autism

Author: Angelica Ronald Affiliation: Social Genetic and Developmental Psychiatry (SGDP) Centre, Institute of Psychiatry, King's College London, UK; Francesca Happé Affiliation: Social Genetic and Developmental Psychiatry (SGDP) Centre, Institute of Psychiatry, King's College London, UK; Robert Plomin Affiliation: Social Genetic and Developmental Psychiatry (SGDP) Centre, Institute of Psychiatry, King's College London, UK; et al
Edition/Format: Article Article : English
Publication:Developmental Science, v8 n5 (September 2005): 444-458
Database:Wiley Online Library
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Document Type: Article
All Authors / Contributors: Angelica Ronald Affiliation: Social Genetic and Developmental Psychiatry (SGDP) Centre, Institute of Psychiatry, King's College London, UK; Francesca Happé Affiliation: Social Genetic and Developmental Psychiatry (SGDP) Centre, Institute of Psychiatry, King's College London, UK; Robert Plomin Affiliation: Social Genetic and Developmental Psychiatry (SGDP) Centre, Institute of Psychiatry, King's College London, UK; et al
ISSN:1363-755X
Language Note: English
Unique Identifier: 5154298127
Notes: Address for correspondence: Angelica Ronald, SGDP Centre, Box PO83, Institute of Psychiatry, De Crespigny Park, London SE5 8AF, UK; e-mail: a.ronald@iop.kcl.ac.uk
Received: 14 June 2004 Accepted: 6 January 2005
Number of Figures: 1
Number of Tables: 6
Number of References: 59
Awards:
Other Titles: Social and nonsocial behaviours
Responsibility: Angelica Ronald et al.

Abstract:

Two types of behaviours shown in children - those reflecting social impairment and nonsocial obsessive repetitive behaviours - are central to defining and diagnosing autism spectrum disorders (ASDs). Parent and teacher data on social and nonsocial behaviours were obtained from a community sample of >3000 7-year-old twin pairs. Social and nonsocial behaviours were only modestly correlated, and it was found that some individuals had extreme scores on either social or nonsocial scales but not both. Genetic model-fitting showed that social and nonsocial behaviours are both highly heritable, but their genetic overlap is modest, with most of the genetic influence being specific to either social or nonsocial behaviours. Considering these behaviours separately might help clarify gene-brain-behaviour pathways in future research.

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