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

For years, we've thought of autism as lying on a spectrum, but emerging evidence suggests that it comes in several distinct ...

The new analysis study showed the delay may stem from genetic mutations that are present when a child is born – but activate later in life.

Experts say the research could reveal more about the role of genetics in autism and lead to more personalized care. A new study has identified four biologically distinct subtypes of autism, each with ...

A diagnosis of autism spectrum disorder (ASD), or autism, involves one of three levels. Standards for the three types of ASD are listed in the Diagnostic and Statistical Manual of Mental Disorders, ...