The signaling imbalance theory holds that the brains of autistic people are hyper-excitable because of either excess neuronal activity or weak brakes on that activity.

Watch the complete replay of Evelina Fedorenko discussing language processing and development in autism.

To find biological markers of autism, scientists would be wise to measure the brain’s electrical activity along with the resulting magnetic fields.

The brains of autistic children show few differences from those of children with attention deficit hyperactivity disorder, or even of controls.

Any study of postmortem brains must control for artifacts, which are pervasive in brain tissue.

Autism and obsessive-compulsive disorder frequently accompany each other; Scientists are studying both to understand how they differ.

An analysis of four mouse models negates certain assumptions underlying the signaling imbalance theory of autism.

The cerebellum, a brain region primarily associated with movement, may mediate the pleasure that comes from socializing.

Applying sound waves to a mouse’s brain provides a safe way to push molecular probes into the brain to manipulate activity there.

New results from brain scans of adults with autism are at odds with the popular theory that the condition involves weak brakes on brain activity.