For example, some believe that parts of their brain have become highly developed, but in isolation so that no connections are made. Understanding Savant Syndrome, says he believes prenatal interference with the way the brain develops is responsible for savants. He thinks testosterone may play a role in stunting the growth of the half of the brain linked to language skills, explaining why men are about six times more likely to be autistic than women. However, the Center for the Study of Autism in Oregon USA says no-one really knows why some autistic people have savant skills. The National Autistic Society says more than 500,000 families in the UK are affected by autism.
Autistic people have difficulty relating to and communicating with others.
It says no-one yet understands what causes the condition.