Since the 1940s, the American Psychopathological Association has been a driving force in psychiatric genetic research. Having studied the Kallmann and Kety Hoch Award papers, many researchers have attempted to advance psychiatric genetic knowledge from epidemiological findings to biological findings. Genetic Approaches to Mental Disorders provides the latest information on the relationship between genetics and mental disorders. Divided into four sections, this book presents analysis of the genetic data, linkage mapping and association, debate over genetic Kraepelinian dichotomy, and mapping and association results in psychiatry.