Spectrum Disorder Overview
Tourette syndrome is an inherited brain disorder involving involuntary utterances and body movements. It affects more men than women. It was named for Georges Gilles de la Tourette, a French doctor who described the symptoms in 1885.
The symptoms of Tourette syndrome begin before the age of 21, usually between 7 and 10 years of age. In most patients, the first symptom is an involuntary eye blink. Most patients soon develop other such motor tics (brief, repetitive, purposeless movements of muscles). These tics may include eyebrow raising, nose flaring, mouth opening, head shaking, teeth gnashing, finger cracking, jumping, stamping, or kicking. Some patients also begin to make uncontrollable sounds, called vocal tics. These include grunting, barking, belching, speaking unintelligibly, and occasionally coprolalia. Coprolalia is the involuntary utterance of vulgar words.
In Tourette syndrome, tics occur multiple times each day and the location of a particular motor tic may vary considerably over time. For example, eye-blinking tics may disappear and shoulder-shrugging tics may appear. Not all children with motor or vocal tics have Tourette syndrome. Before a doctor can make a final diagnosis, the symptoms must be present for at least one year.
Some Tourette syndrome patients have short attentions spans and may also be hyperactive. Although the disorder is not psychological, some patients have emotional stress trying to deal with it.
Researchers suspect that Tourette syndrome results from an abnormality in the neurotransmitters, the chemicals that carry signals between nerve cells. There is no cure, but certain drugs can help control the symptoms. Early diagnosis and treatment can help prevent the development of psychological problems.
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Disclaimer: This information should not be considered medical advice and should not substitute the judgment of a competent psychiatrist.
Source: World Book. Contributor: William J. Weiner, M.D., Professor of Neurology, University of Miami.
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