Taking a close look at people who have a mutation in a known autism gene may reveal why these people often have vastly different characteristics.

Studying large numbers of fraternal and identical twins may help tease apart genetic and environmental contributors to autism.

Social interactions shape the bustling communities of gut bacteria in chimpanzees.

A new network of brain banks aims to collect and disburse tissue donations to U.S. autism researchers.

Inviting families to participate in studies in the context of their clinical care may help mitigate the logistical challenges of long-term studies.

Children with autism are more likely to be overweight or obese than their peers, but it’s unclear why, or what doctors should do about it.

Roughly 13 percent of children with autism eventually lose their diagnosis, either because they outgrow it or because they never had autism to begin with.

A European initiative that aims to provide a framework for clinical trials in autism has developed tools to track treatment responses.

A $28 million initiative aims to develop objective tools for tracking social skills in children with autism. The initiative’s leader outlines its approach.

Researchers are studying the infant siblings of children with autism, with hopes of improving the disorder’s diagnosis and treatment. They need to recognize the risks of these ‘baby sib’ studies, cautions ethicist Ilina Singh.