Brain activity patterns in the first year of life may predict autism in infants at high risk for the condition.

Autistic children who lose words reach key milestones earlier than autistic children without language regression.

More than two-thirds of toddlers flagged for autism do not get assessed for the condition by specialists.

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.

People with autism may show an altered pattern of brain activity when looking at two competing images.

At 10 months of age, infants later diagnosed with autism show key differences in joint attention, a behavior in which two people focus on the same object or event.

A blood test can accurately detect whether a fetus carries large mutations of the kind linked to autism, according to pilot-study results.