Shortcomings of approaches to classifying psychopathology based on expert consensus have given rise to contemporary efforts to classify psychopathology quantitatively. In this paper, we review progress in achieving a quantitative and empirical classification of psychopathology. A substantial empirical literature indicates that psychopathology is generally more dimensional than categorical. When the discreteness versus continuity of psychopathology is treated as a research question, as opposed to being decided as a matter of tradition, the evidence clearly supports the hypothesis of continuity. In addition, a related body of literature shows how psychopathology dimensions can be arranged in a hierarchy, ranging from very broad “spectrum level” dimensions, to specific and narrow clusters of symptoms. In this way, a quantitative approach solves the “problem of comorbidity” by explicitly modeling patterns of co-occurrence among signs and symptoms within a detailed and variegated hierarchy of dimensional concepts with direct clinical utility. Indeed, extensive evidence pertaining to the dimensional and hierarchical structure of psychopathology has led to the formation of the Hierarchical Taxonomy of Psychopathology (HiTOP) Consortium. This is a group of 70 investigators working together to study empirical classification of psychopathology. In this paper, we describe the aims and current foci of the HiTOP Consortium. These aims pertain to continued research on the empirical organization of psychopathology; the connection between personality and psychopathology; the utility of empirically based psychopathology constructs in both research and the clinic; and the development of novel and comprehensive models and corresponding assessment instruments for psychopathology constructs derived from an empirical approach.
Bibliographical noteFunding Information:
R.F. Krueger est soutenu par le US National Institutes of Health, NIH ( R01AG053217 , U19AG051 426 ) et la Templeton Foundation ; A.J. Shackman par le US NIH ( DA040717 et MH107444 ) et l’University of Maryland, College Park ; A. Wright par le US National Institute of Mental Health, NIMH ( L30MH101760 ) ; N.C. Venables par le US National Institute of Drug Abuse ( T320A037183 ) ; U. Reininghaus par le Netherlands Organization for Scientific Research ( 451-13-022 ). Les opinions exprimées dans ce document sont celles des auteurs et ne reflètent pas nécessairement celles des sources de financement.
- Clinical utility
- Hierarchical taxonomy of psychopathology
- Mental disorder