With respect to why some acquired savants are musical, and some are good at the arts, and some are mathematical, why aren't they all the same; I think that has to do with this genetic endowment that all of us have.

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

Savant syndrome and autism, I think, are not disorders of brain structure, but they're disorders of brain function.

The beginning of wisdom is to call things by their right names in research.

The ways in which acquired savants show up are usually the same ways that congenital, or non-acquired, savant syndrome shows up. They tend to show up in the same areas: music, art, math, visual, spatial skills, and calendar calculating, although calendar calculating probably isn't quite as prominent in that group. They tend to show up quite quickly, or sort of explode on the scene and they then tend to have an obsessive sort of forceful quality about them in the same way as savant skills. So they tend to show up in the same ways.

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.

Now I realize, and I acknowledge, that the right brain/left brain distinction is a tremendous oversimplification. We don't come neatly divided into right and left hemispheres, but the fact is that the two hemispheres of the brain do specialize in certain functions.