There is a need to refine our current psychiatric nosology to produce diagnostic criteria and disorder categories that keep pace with advances in neuroscience while at the same time enhance clinical utility. Furthermore, dimensional aspects of psychiatric disorders require greater recognition so as to improve our understanding of boundaries between disorders and underscore the heterogeneous nature of psychopathology. The Conceptual Evolution of DSM-5 provides a framework for the evolution of the forthcoming diagnostic system in the fifth edition of Diagnostic and Statistical Manual of...