Bleuler revisited: psychomotor slowing in schizophrenia as part of a catatonic symptom cluster

Psychiatry Res. 2008 Oct 30;161(1):121-5. doi: 10.1016/j.psychres.2008.01.017. Epub 2008 Aug 22.

Abstract

In schizophrenia, psychomotor slowing and stereotypy are poorly delineated from cognitive deficits like diminished processing speed. Inpatients' performance outcomes on a line-copying task, a task assessing stereotypy and a processing-speed task are compared. Results suggested that psychomotor slowing and stereotypy are related and may represent a catatonic symptom cluster.

MeSH terms

  • Adult
  • Antipsychotic Agents / therapeutic use
  • Cognition Disorders / diagnosis
  • Cognition Disorders / drug therapy
  • Cognition Disorders / psychology
  • Diagnosis, Differential
  • Discrimination Learning / drug effects
  • Female
  • Humans
  • Male
  • Neuropsychological Tests
  • Pattern Recognition, Visual / drug effects
  • Psychomotor Disorders / diagnosis*
  • Psychomotor Disorders / drug therapy
  • Psychomotor Disorders / psychology
  • Psychomotor Performance / drug effects
  • Reaction Time* / drug effects
  • Schizophrenia, Catatonic / diagnosis*
  • Schizophrenia, Catatonic / drug therapy
  • Schizophrenia, Catatonic / psychology
  • Stereotyped Behavior

Substances

  • Antipsychotic Agents