In this book, leading-edge investigators offer effective strategies to improve current antidepressive therapies and suggest molecular, biological, and genetic approaches that will lead to the development of novel antidepressants. The contributors' critical reviews and commentaries illuminate our understanding of the mechanism(s) responsible for antidepressant action. The book's goal is to move beyond current biogenic amine-based concepts and therapies to the development of new and improved antidepressants that are more effective and have a more rapid onset than current.