Mice lacking one copy of a gene linked to autism are small and show striking changes in the number and quality of their cries.

A top autism gene called SCN2A plays a role at neuronal connections into adulthood, offering hope for treating mutations after infancy.

The U.S. Drug Enforcement Agency has made it legal for doctors to prescribe an epilepsy drug derived from marijuana. But all other compounds derived from marijuana remain under tight restrictions.

A new brain implant pumps chemical signals directly into a target region to ease seizure-like activity in mice.

The United States has approved a compound derived from marijuana as a treatment for certain types of epilepsy. The ruling may spell good news for autism research.

Children who have a rare extra copy of one segment on chromosome 15 have better cognitive abilities and daily living skills than those with a duplication that forms an extra chromosome.

More than half of people on the spectrum have four to five other conditions. Which conditions, and how and when they appear, varies from one autistic person to the next.

Over the past year, HNRNPU, a gene well known for its link to epilepsy, has emerged as a new autism candidate.