Signs & Symptoms

The many genes implicated in Williams syndrome, a condition related to autism, may all work together to exert their effects on behavior.

Some cases of anxiety, which often accompanies autism, may stem from a faulty immune system, a new study suggests — but some experts are skeptical.

People with mutations in CHD8, a top autism gene, tend to be tall and have large heads.

Nearly one-third of autistic young people put themselves or others in danger in any given three-month period.

Extra copies of a gene called BOLA2 predispose people to autism and may protect against iron deficiency.

How well autistic children perform daily-living tasks tracks with their language skills and autism traits.

People who have mutations in a gene called PHF21A tend to have a constellation of traits and conditions, including autism.