Inheritability of Autism Traits

Another study in Journal of the American Academy of Child & Adolescent Psychiatry looks as the suggested high heritability of autism traits and cases. The study did not find the high rates of heritability expected, but did find that autism traits show moderate heritability in 2- to 3-year-old twins.

R. Stilp et al., “Genetic Variance for Autism Screening Items in an Unselected Sample of Toddler-Age Twins,” Journal of the American Academy of Child & Adolescent Psychiatry 49,, no. 3 (2010): 267–76.