In this category we look at genetic, medical, and neurological causes of autistic symptoms. The aim is to find good quality studies that truly advance our understanding of the roots of autistic disorders. Quackery is rife on the Internet, so we look at studies of causes that are at least believable, that is, they are based on what is known about body chemistry, brain function, or human genetics. We don’t discard or ridicule the unlikely, but we will point out a lack of credibility in some studies.

Underconnectivity
Weak connections in the brain may be why people with autism have
trouble "seeing the forest for the trees"... more

Mapping the genes for autism:
Canadian study part of a worldwide effort ... more

More autism cases due to increased awareness, earlier diagnosis, says study
In children born in north east London between 1979 and 1998 ... more

MMR Vaccine and Autism
What does the research show? ... more

Autism and Gastrointestinal Disorder – Are they connected?
Are children with autism more likely to have had gastrointestinal ... more

Study shows no link between MMR, bowel problems and autism
Is there an association between the measles, mumps and ... more

Understanding autism - It's mainly in the genes
Autism is a developmental disability with onset in infancy. Its clinical ... more