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Intermediate Technical IVT

psychomotor retardation

Observable slowing of physical movements and mental processes, commonly seen in severe depression.

Full Definition

Psychomotor retardation is a clinical sign characterized by a marked slowing of motor activity, speech, and thought processes that extends beyond normal variations in behavior. It manifests as delayed responses to questions, slow or monotonous speech, reduced spontaneous movement, and apparent difficulty in initiating actions. This symptom is particularly prominent in major depressive episodes with melancholic features and can be objectively measured using standardized rating scales.

Usage

Usage note: Distinguish from bradykinesia, which is specifically related to movement disorders.

In Context

  • "The patient exhibited marked psychomotor retardation with delayed responses and minimal spontaneous movement." — mental status examination
  • "Psychomotor retardation resolved significantly after three weeks of antidepressant treatment." — progress note

Also known as

motor retardation psychomotor slowing

Contrasted with

psychomotor agitation

Don't confuse with

bradykinesia catatonic stupor cognitive slowing

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