Harmful mutations in a gene called NAA15 may lead to autism, intellectual disability and delayed speech and motor function.

A widely used test for autism misses some children with delays in motor, social and communication skills.

A researcher proposes splitting autism into subtypes, mitochondria make neurotransmitters, and highly successful grantees may face a funding cap.

A single gene, OTUD7A, may account for most of the features seen in people missing a segment of chromosome 15 known as 15q13.3.

Spontaneous mutations that impair proteins may lead to motor problems in children with autism.

Infants who have neurofibromatosis, a genetic condition linked to autism, show motor difficulties and communication delays at 10 months of age.

The advocacy organization Autism Speaks releases its three-year strategic research plan, a new autism journal is slated for 2019, and updated U.S. developmental disability prevalence numbers are published.

Success in a small clinical trial of spinal muscular atrophy suggests gene therapy might treat single-gene conditions related to autism.

Children with autism do not show the burst of vocabulary growth that usually accompanies learning to walk.

Young children with autism sustain injuries primarily because of co-occurring attention deficit.