Autism is unusually common among people with congenital blindness, in part because the ability to see drives much of brain development.

At least one in three autistic children has significant movement difficulties, according to a large study.

Mutations in the gene CSDE1 lead to a constellation of developmental delays and conditions, including autism, according to a new study.

Mice lacking one copy of a gene called DDX3X have developmental delay and sensory, motor and behavioral problems — similar to those seen in people with a mutation in the gene.

A single seizure early in life leads to enduring behavioral problems, including diminished sociability, in mice.

A new survey suggests autism prevalence has more than doubled over nine years, but the numbers may reflect only a rise in awareness and better data collection.

Certain patterns of electrical activity in the brain may signal autism in children with tuberous sclerosis complex, a related genetic condition.

Being anemic while pregnant may increase a woman’s chance of having a child with intellectual disability, autism or attention deficit hyperactivity disorder.

The loss of 21 genes on chromosome 3 may substantially raise the risk of autism.

People on the spectrum, and girls and women in particular, are at high risk of suicide; siblings of autistic people are also at heightened risk.