a disorder of motor activity characterised by a reduction in the amount of purposeful movement. The patient sits abnormally still or walks abnormally slowly or takes a long time to initiate movement. There is a reduced amount of spontaneous movement. In their speech there are long pauses before the patient answers,each word follows very slowly after the one before. With restricted quantity of speech the patient uses the minimum necessary words, does not use extra sentences or unprompted additional comments, so that it is extremely difficult to keep the conversation going. In more severe forms the patient completely fails to answer. Questions have to be repeated and answers are restricted to a minimum. Subjectively the patient may complain of their thoughts being slowed up or reduced.
Psychomotor retardation comprises a slowing down of thought and a reduction of physical movements in a person. This is most commonly seen in people with clinical depression where it indicates a degree of severity. It is often accompanied by psychosis.