Psychomotor Retardation
A clinically significant slowing of thought, speech, and physical movement observed in patients, most commonly associated with severe depression.
Full Definition
Psychomotor retardation is a symptom documented in mental status examinations and progress notes, describing a visible and measurable reduction in the speed of a patient's movements, speech, and cognitive processing. It is most commonly associated with major depressive disorder and bipolar depressive episodes but may also appear in catatonia and the aftermath of certain psychotropic medications. Editors should note that 'retardation' here is a clinical descriptor with a precise physiological meaning distinct from its colloquial (and now stigmatised) usage. Clinical documentation should retain this term when it reflects the clinician's intent; editors should not substitute lay synonyms unless instructed by a style guide.
Usage
Usage note: A precise clinical term; do not replace with informal synonyms in formal documents. Distinguish clearly from 'psychomotor agitation,' its clinical opposite.
In Context
- "Mental status examination revealed marked psychomotor retardation, with the patient taking up to 30 seconds to respond to questions." — Psychiatric Evaluation
- "Editors should preserve the clinical term 'psychomotor retardation' and not replace it with informal alternatives in formal diagnostic reports." — Editorial Style Note