Genes implicated in Tourette syndrome overlap with those involved in autism, according to an analysis of rare DNA duplications and deletions in people with the syndrome, published in the March issue of Biological Psychiatry.

Autism and attention deficit hyperactivity disorder show genetic and neurobiological overlap, which may provide clues to the origin of both disorders, says Joel Nigg.

As babies are learning to talk, they shift their focus from speakers’ eyes to their lips, according to a new study that could inform efforts to find an early predictor of autism.

The results of two new studies support recommendations against the use of brain scans to diagnose autism.

Analyzing the organization of whole-brain structural networks could reveal differences in the way brains of children with autism and other neurodevelopmental disorders are wired.

New numbers are shedding light on just how much it costs to care for children with autism — and, importantly, what is driving those costs.

Intellectual disability is more likely to be associated with multiple, large or non-inherited duplications and deletions of DNA than is autism, according to a study published 7 November in PLoS Genetics.

Supplements of omega-3 fatty acids, prime ingredients of fish oils, don’t improve symptoms in children with autism, according to a new review.

People with autism have structural changes in parts of the cerebellum that are distinct from those seen in individuals with attention deficit hyperactivity disorder or dyslexia, according to an unpublished meta-analysis presented at the 2011 Society for Neuroscience annual meeting in Washington, D.C.

Two studies published in the past month highlight the challenges in balancing the accuracy of autism diagnosis with cost-effectiveness and speed.