NCIt synonyms : Tourette's Syndrome; Tourette s Syndrome;
NCIt related terms : Gilles de la Tourette syndrome;
NCIt definition : A neurologic disorder caused by defective metabolism of the neurotransmitters in the
brain. It is characterized by repeated involuntary movements (motor tics) and uncontrollable
vocal sounds (vocal tics). The symptoms are usually manifested before the age of eighteen.;
Alternative definition : NICHD: A neurological disorder presenting in childhood that is characterized by both
motor and phonic tics that occur daily or nearly daily for at least a year and are
not attributed to an identifiable cause.;