Autistic boys and men show notable differences in brain development, according to magnetic resonance imaging scans taken over a 16-year period.

Mutations in the autism-linked gene ASH1L change how neurons grow and develop.

Autistic people have distinct patterns of brain development, which sometimes result in differences in brain structure. Here’s what we know about those differences.

Mutations in both copies of a gene called ACTL6B lead to autism, epilepsy and intellectual disability.

The long fibers of neurons in the brains of young children with autism are structured differently from those of their neurotypical peers — and from those of older children with the condition.

A novel cell culture device enables researchers to grow bundles of nerve fibers from stem cells, mimicking the tissue that connects distant parts of the brain.

Many researchers question the value of three early mouse models of autism, but the models have their staunch supporters.

Autism and attention deficit hyperactivity disorder often coincide, but the search for common biological roots has turned up conflicting evidence.

Problems with social interactions stem from faulty wiring of a single circuit spanning distant brain regions, results from three mouse models of autism suggest.

Music therapy proves ineffective for autism, brain structures differ with 16p11.2 duplications and deletions, and mice missing NLGN3 may influence the sociability of their littermates.