Can Autism Spectrum Disorders Be Inherited?
"Can high functioning autism be inherited? Our son was recently diagnosed, and now I am wondering if my husband has it too ...their behaviors are very similar." There is strong evidence that ASD Level 1 or High-Functioning Autism (HFA) is, at least in part, an inherited condition. If one twin develops the disorder, there is a 60% likelihood that the other will develop it as well. Younger kids born into families with an older child on the autism spectrum have a 5-6% likelihood of also having the disorder. Even though the incidence of HFA is higher among related family members, no specific gene has been linked to its development. Also, there is currently no way to test for the genetic predisposition towards the disorder. HFA is a neurobiological disorder in which known areas of the brain are affected in ways scientists do not yet completely understand. The disorder is considered to be inherited in a complex fashion (e.g., more complicated than disorders such as co...