title: Prevalence of abnormal involuntary movements ("spontaneous dyskinesias") in the normal elderly.
abstract: Advancing age has been associated with increased prevalence of abnormal involuntary movements in neuroleptic-treated patients. In order to investigate the possibility that the aging process itself might produce involuntary movements clinically indistinguishable from tardive dyskinesia, a group of healthy elderly volunteers were systematically examined. A 4% prevalence rate of mild involuntary movements was found, suggesting that the aging process itself is not likely to produce dyskinesias without other contributing factors coming into play.
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000150:complications; D009069:Movement Disorders / Q000150:complications / Q000453:epidemiology* / Q000503:physiopathology; D009422:Nervous System Diseases / Q000150:complications