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, ...

Reported cases have surged. Doctors and scientists point to how diagnosis and awareness have morphed over time.

More research is needed to formulate clinical practice guidelines for practitioners in community mental health clinics who treat adults with ASD, according to study results presented at the American ...

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 ...

Some people with autism spectrum disorder (ASD) have abnormal levels of glutamate in the brain. New research led by Mass General Brigham has focused on this neuron-activating chemical, suggesting that ...

Clinicians and researchers continue to push back on unsupported claims about the causes of autism while new NIH projects aim to clarify its complex origins.