Abstract

Catatonia is a psychomotor disorder that has gone through numerous descriptions since 1874, reflecting the many changes in psychiatric disease conceptualization that have occurred within that time frame. Catatonia has been variously described as a distinct disease entity, as a part of schizophrenia, and as a nonspecific manifestation of many disorders. Because of its association with schizophrenia, the description of catatonia was particularly affected by the psychopharmacological era, beginning in the 1950s, and by the development of the Diagnostic and Statistical Manual of Mental Disorders (DSM). Changing trends in psychiatric research—especially the brain-based disease model, research methods favoured by the evidence-based medicine movement, and the codes and categories of the DSM—also profoundly influenced the evolving concept of catatonia. This paper discusses these important factors that affected recognition, treatment, and study of catatonia in order to reveal the biases and assumptions made when constructing a disease concept.