There are three levels of autism spectrum disorder (ASD), which are described in the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5). Each autistic person is diagnosed as ...

• The term “autism spectrum disorder” (ASD) is now an umbrella term encompassing what were previously considered four distinct types of autism. • ASD is diagnosed in levels, from Level 1 to Level 3, ...

Scientists have found a cluster of genes that plays a role in the development of an autism subtype. The genes are involved in controlling brain development, as well as the metabolism of cholesterol.

Even as a practitioner who works with autistic women, and as an autistic woman myself, understanding what exactly autism spectrum disorder is can be difficult. We tend to think of spectrums in terms ...

Thinking about autism has evolved. Just three decades ago, autism was a relatively rare and clearly defined condition, ...