When we come to research, if we want to find out the cause of autism, we're going to have to be much more specific, and that's why when it comes to research, I'm fairly strict with respect to criteria. When it comes to treatment, I'm much more open to not making that differentiation.

Originally when we talked about language disorder it was a catastrophic language disorder. It's substantial, and from a treatment standpoint it's okay to keep diluting that term, but from a research standpoint we need to be much more precise. I wish somebody would take up the mantle of just that particular task.

We have medicalized a lot of things that I think are not really medical conditions.

Parents don't particularly care whether it's early infantile autism or whatever label the clinicians have put on it. All they want is treatment, and they want what's best for their child, whatever that is. And when it comes to treatment, it may be that there's much more shared interventions that don't make any difference what label we're putting on it.

There does seem to be a higher educational level in parents of autistic youngsters, and I guess that's something that we need to look into.

Savant syndrome is not a disorder in the same way as autism is a disorder or dementia is a disorder. Savant syndrome are some conditions that are superimposed and grafted on to some underlying disability. So savant syndrome is not a disease or disorder in and of itself. It is a collection of characteristics, or symptoms, or behaviors that have grafted on to the underlying disability.

When I met my first savant in 1962, I was impressed by the abilities in these youngsters who had severe disabilities. They appeared to me to be islands of genius in the sea of disability. So I've maintained that word picture since that time, of these islands of genius that are so striking and so jarring when you see them, especially in people who have severe disability.