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DSM-IV-TR: Tourette's Disorder

This Tic Disorder is diagnosed when BOTH motor AND vocal tics ("sudden, rapid, recurrent, nonrhythmic, stereotyped motor movement or vocalization") are experienced persistently. (Named for Gilles de la Tourette)

Diagnostic criteria for 307.23 Tourette's Disorder
(cautionary statement)  

A. Both multiple motor and one or more vocal tics have been present at some time during the illness, although not necessarily concurrently. (A tic is a sudden, rapid, recurrent, nonrhythmic, stereotyped motor movement or vocalization.) 

B. The tics occur many times a day (usually in bouts) nearly every day or intermittently throughout a period of more than 1 year, and during this period there was never a tic-free period of more than 3 consecutive months. 

C. The onset is before age 18 years. 

D. The disturbance is not due to the direct physiological effects of a substance (e.g., stimulants) or a general medical condition (e.g., Huntington's disease or postviral encephalitis).

Reprinted with permission from the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision.  Copyright 2000 American Psychiatric Association

See also: Chronic Motor or Vocal Tic Disorder

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