When people hear the word autism, it’s often associated with a specific set of traits. But in reality, autism spectrum disorder (ASD) is just that—a spectrum, encompassing a broad range of differences ...

Families of people with severe autism say the repeated expansion of the diagnosis pushed them to the sidelines. A new focus on the disorder has opened the way for them to argue their cause. Jodie ...

Genetic data suggest that expanding diagnostic criteria may account for much of the increase in ADHD and autism diagnoses.

The official diagnosis of autism has undergone multiple reinterpretations and definitional shifts within the scientific community since it was first described in the early 20th century. Today, autism ...