The brain immediately confronts us with its great complexity. The human brain weighs only three to four pounds but contains about 100 billion neurons. Although that extraordinary number is of the same order of magnitude as the number of stars in the Milky Way, it cannot account for the complexity of the brain. The liver probably contains 100 million cells, but 1,000 livers do not add up to a rich inner life.

The brain immediately confronts us with its great complexity. The human brain weighs only three to four pounds but contains about 100 billion neurons. Although that extraordinary number is of the same order of magnitude as the number of stars in the Milky Way, it cannot account for the complexity of the brain. The liver probably contains 100 million cells, but 1,000 livers do not add up to a rich inner life.

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 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 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.

I think my own bias is that there may be something wrong with the timing and the connectivity between regions rather than pointing to one particular spot in the brain.