This month’s newsletter highlights findings on the use of three medication types during pregnancy.

Parents’ health, treatment dosages and sensory perception feature in this month’s crop of null and replicated results.

Women who carry genetic variants tied to autism have an elevated chance of experiencing pregnancy-related events linked to the condition in their children.

Doctors can prescribe it, but evidence that ketamine eases autism traits is still preliminary.

The finding that MDMA and an experimental serotonin agonist increase sociability across six different model mice suggests that disparate autism-linked mutations converge on the same underlying pathways.

The high levels of serotonin seen in the blood of some autistic people have confounded scientists for more than half a century. Despite so little progress, some researchers refuse to give up.

A glowing protein tracks serotonin levels and location in the brains of living mice and could yield clues to the neurotransmitter’s role in autism.

A class of medications used to treat obsessive-compulsive disorder seems to ease compulsive behaviors in adults with autism. Why can’t we tell if these medications work similarly in children with the condition?

Autistic people are four times as likely to experience depression over the course of their lives as their neurotypical peers. Yet researchers know little about why, or how best to help.

About one in three autistic people in the United Kingdom is prescribed drugs designed to alter brain function.