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- Title
Brief Report: Autistic Traits in Twins Vs. Non-Twins-A Preliminary Study.
- Authors
Ho, Alexander; Todd, Richard; Constantino, John
- Abstract
Previous studies have suggested that among affected sib pairs with autism there is an increase in the frequency of twins over what would be expected in comparison to the prevalence of twins in the general population. In this study we sought to determine whethersub-thresholdautistic traits were more pronounced in twins than in non-twins. The Social Responsiveness Scale (SRS) was administered in an epidemiologic twin sample (n=802) and in a separate population-based sample of non-twins ascertained from a local school district (n=255). For males (but not females), the mean SRS score was significantly higher among twins than among non-twins. As has been suggested for autism, twin status may incur increased liability to sub-threshold autistic symptomatology, particularly in males.
- Subjects
AUTISM; DEVELOPMENTAL disabilities; DISABILITIES; CHILDREN with disabilities; INTELLECTUAL disabilities
- Publication
Journal of Autism & Developmental Disorders, 2005, Vol 35, Issue 1, p129
- ISSN
0162-3257
- Publication type
Article
- DOI
10.1007/s10803-004-1040-8