The underlying theme of this book the role of experience in the development of the nervous system. It is now widely acknowledged that there are a variety of organi- environment interactions that guide the development of the nervous system. The popular press has also picked up on this theme and parents are being advised to enrich their child's sensory experience as early as possible. The importance of experience in development is so well accepted that it has begun to dictate public policy. In 1997, the President and First Lady hosted "The White House Conference on Early Childhood Development...