Children born to women who had diabetes or high blood pressure while pregnant may be at an increased risk of autism.

About 10 percent of people with a large mutation in chromosome 22 have autism, attention deficit hyperactivity disorder or intellectual disability.

Autism and intelligence share genetic variants, researchers grow Neanderthal mini-brains and see overlap with autism, and maternal diabetes is an autism risk factor.

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

Mutations in certain genes contribute specifically to autism, and others only to developmental delay.

Since the DSM-5’s debut, schoolchildren have gained stronger legal rights and better opportunities for accessing services; for adults, it’s a different story.

The move to replace ‘mental retardation’ with ‘intellectual disability’ is widely accepted, but little data exist on the impact of this change.

Five years after its latest revision, the manual used to diagnose autism is back under scrutiny, as evidence suggests it excludes some people on the spectrum.

Mutations in a gene called ADNP lead to a syndrome that includes autism, intellectual disability and problems with the gut, eyesight, heart and brain.

Children with autism typically have four or five other conditions, such as attention deficit hyperactivity disorder, that can affect when they are diagnosed.