A child’s environment exerts a strong influence on the severity of her autism, a study of identical twins suggests.

Some men who have an autistic child carry mutations linked to the condition only in their sperm.

Few of the most popular early treatments for autism are supported by strong evidence, according to two new studies.

Some of the inherited variants implicated in autism also increase the odds of schizophrenia, bipolar disorder, depression or attention deficit hyperactivity disorder.

Here is a roundup of news and research for the week of 6 January.

A new resource details the genetic diversity of people in Asia and may shed light on genetic conditions such as autism.

Autism may stem from a different — and larger — set of genetic mutations in women than it does in men.

An immune molecule produced during a fever improves sociability in three mouse models of autism.