Rationality and Compulsion : Oxford University Press : 9780199214853 : 0199214859 : 26 Apr 2007 : Rationality and Compulsion presents a unique examination of mental illness - derived from philosophical action theory. Delusion is common to many mental disorders, resulting in actions that, though perhaps rational to the individual, might seem entirely inappropriate or harmful to others. So what is it that causes these actions, and why do they continue? The theory expounded in this book shows how the key to this problem might be compulsion. This book presents a new analysis of the notion of compulsion - developed from action theory. The books starts with an introduction to action theory (for the benefit of non-philosophers). It then shows how insights from action theory can help us better understand mental illness, before developing an analysis of compulsion that emphasizes the element of unavoidability. The book argues that what is fundamentally disturbing to the person suffering from d