Some people who have lost the diagnosis of Asperger syndrome say they feel a loss of identity and worry about a loss of services.

Autistic preschoolers may get too little therapy and too much medication, according to a new study.

Robert Schultz hopes to use technology to change how autism is studied, diagnosed and treated.

Cut off from clients by the pandemic, clinicians are turning to video conferencing and other technologies to diagnose children with autism.

Doctors often conflate autism and intellectual disability, and no wonder: The biological distinction between them is murky. Scientific progress depends on knowing where the conditions intersect — and part ways.

A new blood test can identify within seven hours whether a person carries the genetic mutation underlying fragile X syndrome.

Individuals with mutations in an autism gene called TRIO may have a range of conditions, including intellectual disability and anomalous head size.

A short, widely used screening survey for autism called the AQ-10 may not be reliable for measuring traits of the condition in the general population.

Autism prevalence in the United States continues to rise, according to a new study of 8-year-old children in 11 states. Boys are 4.3 times as likely as girls are to have autism, a ratio that is consistent with previous estimates.

Autistic infants as young as 6 months display subtle signs of the condition, according to a study of visual attention.