Signs & Symptoms

Adults with autism tend to have a different set of psychiatric conditions than do those with attention deficit hyperactivity disorder.

About half of boys and men with fragile X syndrome injure themselves — and continue to do so for years.

Autistic women show unusually strong connections, and autistic men unusually weak ones, between two brain regions.

Mice colonized with gut microbes from some autistic boys show behaviors like those of the boys.

Autistic infants who are enrolled in long-term studies may go on to have milder autism traits and better life skills than other children with the condition.

Here is a roundup of news and research for the week of 20 May.

The ability to learn from social experiences wanes by adulthood, at least in mice — but the recreational drug ecstasy may bring it back.