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 ...

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 ...

New research identifies four presentations of autism based on genetics, behaviors and the ages when symptoms first appeared.

Autism spectrum disorder, or ASD, is the clinical name for the condition most people refer to as autism. Autism is defined as "a complex developmental condition that affects communication, social ...