Increased autism risk among children exposed to antidepressants in utero may be related less to the medications than to the mothers’ depression.

Young adults with autism face many new expectations and challenges — with none of the support that is available during high school.

A large study finds that certain health complications during pregnancy or delivery increase the chances of having a child with autism by 26 percent or more.

Replacing the microbes that inhabit the gut may ease digestive troubles and social difficulties in children with autism.

Babies who have their first bowel movement before birth have a slightly increased risk of autism, according to a study of nearly 10 million people.

Instead of simply listing sex differences in the brain, researchers should consider how sex interacts with other factors to affect the brain, Joel says.

Peruse our picks for the best science photos published on Spectrum this year.

Autism researchers reflect on the unusual episodes that spawned significant scientific projects.

New cages for mice mimic the animals’ natural burrows, providing a realistic environment for studies of social behavior.

Infecting pregnant rats with group B streptococcus triggers inflammation in the fetal side of the placenta, but only in male fetuses.