title: Natural kinds, psychiatric classification and the history of the DSM.
abstract: This paper addresses philosophical issues concerning whether mental disorders are natural kinds and how the DSM should classify mental disorders. I argue that some mental disorders (e.g. schizophrenia, depression) are natural kinds in the sense that they are natural classes constituted by a set of stable biological mechanisms. I subsequently argue that a theoretical and causal approach to classification would provide a method for classifying natural kinds that is superior to the purely descriptive approach adopted by the DSM since DSM-III My argument suggests that the DSM should classify natural kinds in order to provide predictively useful (i.e. projectable) diagnostic categories and that a causal approach to classification would provide a more promising method for formulating valid diagnostic categories.
authors.affiliation: Iowa State University, USA jtsou@iastate.edu.
authors.forename: Jonathan Y
authors.initials: JY
authors.lastname: Tsou
mesh_terms: D003863:Depression; D039721:Diagnostic and Statistical Manual of Mental Disorders; D006801:Humans; D001523:Mental Disorders / Q000145:classification*; D012559:Schizophrenia
keywords: Diagnostic validity; history of the Diagnostic and Statistical Manual of Mental Disorders; looping effects; mechanistic property cluster kinds; projectability