The present review covers various intriguing aspects of psychomotor disturb
ances in schizophrenia and depression that are, to a large extent, poorly u
nderstood as yet. These include clinical manifestations, prevalence, diagno
stic significance, assessment, underlying cognitive and motor processes, an
d changes that occur during treatment of the psychotic or depressive disord
er. (C) 2001 Lippincott Williams & Wilkins.