Autism is diagnosed on the basis of a triad of impairments in social interaction,
communication, and flexible imaginative functions (with restricted and repetitive behaviors …

There is broad agreement that genetic influences are central in the development of
idiopathic autism. Whether relatives manifest genetically related milder phenotypes, and if …

Little is known about the female presentation of autism spectrum disorder (ASD) during early
childhood. We investigated sex differences in developmental profiles using the Mullen …

Sex differences were examined in 3-year-olds with autism spectrum disorders (ASD)
ascertained from a high-risk cohort, and high-and low-risk comparison groups. Participants …

Males are at least four times more likely to develop autism than females. Among relatives
with a broader autistic phenotype, males predominate too. Autism is a highly heritable …

Heterogeneity within the autism diagnosis obscures the genetic basis of the disorder and
impedes our ability to develop effective treatments. We found that by using two readily …

Key substantive findings from quantitative and molecular genetic research are reviewed in
relation to affective disorder, schizophrenia, autism, hyperkinetic/attention deficit disorder …

Genetic epidemiology is the study of inherited factors involved in the etiology of a disease or
disorder and uses the methods of both medical genetics and clinical epidemiology. In …

Autism is a neurodevelopmental disorder of genetic origins, with a heritability of about 90%.
Autistic disorder is classed within the broad domain of pervasive developmental disorders …

We provide an overview of research on the epidemiology of autism and related pervasive
developmental disorders (PDDs). First, we provide data on the prevalence of autism, which …