Theory of mind difficulties are likely to be more central to autism than to attention deficit hyperactive disorder, whereas executive function problems are more often associated with the latter.

Autism and post-traumatic stress disorder share many traits, but the connection between them was largely overlooked until now.

Toddlers with autism show less fear when confronted with something scary than do typical children or those with developmental delay.

Many drugs for fragile X syndrome have failed in large clinical trials, but candidates that target new aspects of the condition may fare better.

A new behavioral test in zebrafish may help researchers zero in on the biology of social interactions.

Depression is more than three times as common among adults with autism as it is in the general population.

Nearly half of American children with autism aged 10 to 17 are overweight or obese.

An electrical brain implant all but erased the obsessions that had consumed Becky Audette, years after her autism diagnosis. Could similar implants help other people with severe autism?

Looking at the brain as a whole suggests that nudging flawed sets of neurons to collaborate better might alleviate autism traits.

Difficulties with social communication appear to wane as toddlers with autism mature into young adults, perhaps due in large part to improvements in language ability.