Signs & Symptoms

A two-belt treadmill attached to a specialized display suggests that people with autism have a distinct walking style.

Some children who dramatically lose a range of abilities after age 2 may have a condition called childhood disintegrative disorder.

Links between sensory and motor brain networks may be unusually weak in individuals with autism.

The brains of rats exposed in utero to the seizure drug valproate show a significant increase in brain size around the time of birth.

Traits associated with autism and gender variance may co-occur even among typical children — a finding that may ease some of the skepticism about the overlap.

Three distinct categories of traits best characterize autism, according to a study of more than 6,000 children.

Children who contract serious infections may have an increased likelihood of being diagnosed with autism.

Children who have an older sibling with attention deficit hyperactivity disorder are at an increased risk of having autism. The reverse is also true.