This interdisciplinary work addresses the question, What role should psychological conceptualization play for thinkers who believe that the brain is the organ of the mind? It offers readers something unique both by systematically comparing the writings of eliminativist philosophers of mind with the writings of the most committed proponents of biological psychiatry, and by critically scrutinizing their shared anti-anthropomorphism from the standpoint of a diagnostician and therapist. Contradicting the contemporary assumption that common sense psychology has already been proven futile, and we are just waiting for an adequate scientifically-based replacement, this book provides explicit philosophical and psychological arguments showing why, if they did not already have both cognitive and psychodynamic psychologies, philosophers and scientists would have to invent them to better understand brains. (Series A)