About 1 in 10 toddlers who have an older sibling with autism have cognitive and motor delays.

The first large population-based analysis of the prevalence of regression in autism reveals that it occurs in 20 percent of children with autism.

Manipulating MeCP2, the gene mutated in Rett syndrome, has revealed two neuron types as crucial contributors to the condition.

Adults with autism, particularly women, deliberately hurt themselves much more often than other adults do.

Scientists fret over ‘Brexit,’ a video game boosts cognitive skills in children, and studies detail the downsides of jargon.

Researchers are beginning to understand how mutations in a cancer-linked pathway called WNT contribute to autism.

An extra copy of a stretch of genes on chromosome 22 may contribute to autism, as well as a variety of health problems.

Mice with a mutation in CHD8, the top autism gene, show no signs of any of the condition’s core features.

A detailed analysis of the behavior of 6,500 children suggests that five types of behaviors lumped together in current diagnostic guidelines should each be considered separately.