Signs & Symptoms

The timing of treatment is crucial for conditions related to autism — and more so for some conditions than for others.

Researchers have engineered two generations of monkeys with mutations in SHANK3, a top autism gene. The first generation shows traits reminiscent of the condition.

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.