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. People with this can sometimes be mistaken as having dementia. Psychomotor retardation can require increased nursing care to ensure adequate food and fluid intake as well as self-care. Informed consent for treatment is more difficult to achieve when this is present.

Psychomotor retardation is also referred to as motormental retardation, commonly seen in depression and bipolar disorder.

Medical signs | Mental illness diagnosis by DSM and ICD