Many children eventually diagnosed with autism lose social skills between 18 months and 3 years of age. But few parents notice this trend.

Researchers have built a tablet-based tool that uses machine learning to make screening for autism easy and efficient.

A small wristband gives caregivers a one-minute warning that an individual with autism is about to become aggressive toward himself or others.

Children with autism who participate in research beginning in infancy have less severe autism features than other children with the condition.

Language difficulties and emotional challenges such as anxiety or aggression in children with autism at age 3 predict their social skills at around age 5.

A 2013 initiative to find biological roots for mental health diagnoses still has broad appeal, but has not produced a dramatic shift in autism research.

From a form of childhood schizophrenia to a spectrum of conditions, the characterization of autism in diagnostic manuals has a complicated history.

Five years after its latest revision, the manual used to diagnose autism is back under scrutiny, as evidence suggests it excludes some people on the spectrum.

A new neuroimaging device that is worn like a helmet enables researchers to map the functional activity of a person’s brain as she moves her head.

Mutations in a gene called ADNP lead to a syndrome that includes autism, intellectual disability and problems with the gut, eyesight, heart and brain.