transient tic disorder
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transient tic disorderSimple tic Neurology A childhood disorder characterized by single or multiple motor tics–face, arms, legs, or other areas, often occurring 1+/day for 4 wks, which is either organic or psychogenic; TTD worsens with emotional stress and is absent while sleeping; tics may
be precipitated in predisposed children with ADHD when given methylphenidate–Ritalin. See ADD.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.