There is no question there are differences between male and female brains. They are called sexual dimorphisms and you can point to different anatomical structures.

Autism reaches out in many different directions. It can be associated with language delays. It can be associated with epilepsy. It can be associated with some degree of intellectual disability, but the two core features of autism, I see, is impairments and social cognition, understanding and in restricted interests and repetitive behaviors.

The brain immediately confronts us with its great complexity. The human brain weighs only three to four pounds but contains about 100 billion neurons.

As the diagnosis of autism is increasing the diagnosis of mental retardation is decreasing. And more and more on the other end, the high end, more children who are just a little bit off, who ordinarily you would not single out now are being described as perhaps Asperger’s syndrome or on the high end of the autism spectrum, so I don’t believe there is an epidemic.

Autism is a developmental disorder characterized by two main components: an inability to interact socially with other people with joint attention to understand other people's thoughts.

Autism is not a snapshot. It's a life.

In autism there is just genes in part more or less of a probability that you will have the disorder, and that is where interactions with the environment are key.