‘Autistic burnout’ is the intense physical, mental or emotional exhaustion, often accompanied by a loss of skills, that some adults with autism experience.

Autistic people who are hyperactive or have difficulty controlling their own impulses are the most likely to show ongoing self-injury.

Associated primarily with its role in movement, the striatum may also influence the social difficulties of autistic people.

Restricted interests and repetitive behaviors constitute one of two criteria that define autism in the diagnostic manual for psychiatry.

The branch of the nervous system that regulates subconscious bodily processes such as breathing and digestion may play a key role in autism.

Autistic people have long maintained that repetitive behaviors are beneficial. Emerging evidence in support of this idea is shaping new therapies.

Delivery by cesarean section leads to subtle brain and behavioral alterations in mice, particularly those delivered prematurely.

Studies of Rett syndrome hint at genes, cells and brain circuits that may be involved in autism — and may pave the way to treatments for both conditions.

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

Deleting the mutation from an autism gene may reverse some autism traits in mice, according to a new study. But the results may be a fluke.