Why Are Some Neurons Replaced in Adult Brain?

This review draws on work that benefited from very generous support of the National Institutes of Mental Health (Public Health Service Grant MH 18343), the Mary Flagler Cary Charitable Trust, Howard Phipps, and the late Herbert Singer. My wife, Marta Nottebohm, edited the text and made many helpful suggestions.

Correspondence should be addressed to Dr. Nottebohm at the above address. E-mail: nottebo{at}mail.rockefeller.edu.