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|Diagnostic criteria for Tourettes Syndrome|
|Written by CherrieAngel|
|16 October 2008|
• both multiple motor tics and one or more vocal tics must be present at the same time, although not necessarily concurrently;
• the tics must occur many times a day (usually in bouts) nearly every day or intermittently over more than 1 year, during which time there must not have been a tic-free period of more than 3 consecutive months;
• the age at onset must be less than 18 years;
• the disturbance must not be 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).
New changes have been made in the DSM and they are as follows:
• Tourette’s Disorder and all of the Tic Disorders no longer require that symptoms cause distress or impair functioning.
Diagnostic and Statistical Manual of Mental Disorders , 4th-ed (DSM-IV-TR). Washington DC: American Psychiatric Association 2000; 111-114.