PSYCHOMOTOR RETARDATION By N., Pam M.S. - April 28, 2013 A general slowing of mental and physical activity including speech, thinking and movements. It is a common symptom of depression. Also referred to as hypoactivity. PSYCHOMOTOR RETARDATION: "John would just sit there on the corner of his bed for hours during a depressive event. That was indicative of psychomotor retardation." Related Psychology Terms TOPIRAMATE MENTATION PSYCHOMOTOR MENTAL STATUS PSYCHOMOTOR AGITATION BECK DEPRESSION INVENTORY (BDI) SEDATIVE ISOCHRONY PURPOSELESS HYPERACTIVITY AUTISTIC DISORDER Cite this page: N., Pam M.S., "PSYCHOMOTOR RETARDATION," in PsychologyDictionary.org, April 28, 2013, https://psychologydictionary.org/psychomotor-retardation/ (accessed December 11, 2019).