Most toddlers who screen positive for autism do not receive the recommended referrals for follow-up tests or therapies.

Autistic preschoolers may get too little therapy and too much medication, according to a new study.

Emotion control eludes more girls than boys with autism, according to a new study of young people hospitalized for psychiatric issues.

In younger siblings of children with autism, insecure attachments to their caregivers increases the odds of being diagnosed with autism.

Autistic children and adults report having poor physical and mental health and quality of life compared with the general population.

Adults with autism vary enormously in their quality of life, and two factors may explain most of this variation.

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

Few of the most popular early treatments for autism are supported by strong evidence, according to two new studies.