A new study published in the Journal of Genetic Counseling confirms the relative infrequency of genetic testing for autism.

A survey asks clinical geneticists what type of incidental findings should be returned to people who have their genomes sequenced.

Dysregulation of the intracellular signaling pathway RAS, a risk factor for idiopathic autism, may provide a unifying theory of the disorder. Although this is not an altogether new hypothesis, several new findings have strengthened the evidence for it considerably.

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.

A new study uses data from more than 10,000 typical individuals to validate candidate regions implicated in schizophrenia.

Deletion of 22q11, a schizophrenia-associated chromosomal region, may activate previously silent mutations, according to unpublished work presented Sunday at the 2011 Society for Neuroscience annual meeting in Washington, D.C.

Stem cells reprogrammed to become neurons can provide a picture of gene expression in neurons that is traditionally available only from brain tissue.

Duplications and deletions of genetic regions linked to autism are rare in individuals referred for genetic testing, but occur at a higher rate than in the general population.

Mice lacking a gene that regulates an important signaling pathway in the central nervous system have severe autism-like social deficits, including little interest in nurturing their offspring and problems with learning and memory.

Harmful spontaneous mutations may account for up to half the cases of non-inherited schizophrenia.