Tourette Syndrome is an inherited, neurological disorder characterized by repeated and involuntary body movements (tics) and uncontrollable vocal sounds. In a minority of cases, the vocalizations can include socially inappropriate words and phrases -- called coprolalia. These outbursts are neither intentional nor purposeful. Involuntary symptoms can included eye blinking, repeated throat clearing or sniffing, arm thrusting, kicking movements, shoulder shrugging or jumping.
These and other symptoms typically appear before the age of 18 and the condition occurs in all ethnic groups with males affected 3 to 4 times more often than females. Although the symptoms of TS vary from person to person and range from very mild to severe, the majority of cases fall into the mild category. Associated conditions can include obsessivity, attentional problems and impulsiveness.
Most people with TS lead productive lives and participate in all professions. Increased public understanding and tolerance of TS symptoms are of paramount importance to people with Tourette Syndrome.
An extremely thorough, up-to-date review is by Mary M. Robertson and Jeremy S. Stern, "The Gilles de la Tourette Syndrome," Critical Reviews in Neurobiology, 11(1):1-19 (1997).
| Study | Frequency | ? Type of Sample |
| Brunn, J. Am. Acad. Ch. Psychiat., 23:126 (1984) | 5/10,000 | Typically accepted figure |
| Burd, et. al., Am. J. Psychiat. 143:787 (1986) | 0.77/10,000 (boys) 0.22/10,00 (girls) | North Dakota School Districts |
| Comings, et. al., J. Clin. Psychiat, 51:463 (1990) | 105/10,000 (boys) 13/10,000 (girls) | Duarte, California |
| Apter, et. al., Adv. in Neurology, 58:67(1992) | 4.9/10,000 (boys) 3.1/10,000 (girls) | Israeli population based |
| Caine, et. al., Neurology,38:472 (1988) | 2.87/10,000 | Monroe County, New York, Public Schools |
However, psychotherapy can be extremely beneficial in helping both patients and family members deal with their reactions and their peers' reactions to the symptoms, especially if there is denial in some family members, or the patient is not diagnosed until late in life and has many misdiagnoses.