Tourette Syndrome

Symptoms, & Facts

Oct 8, 2023 - 01:17
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Learn about Tourette syndrome and listen to a young boy talk about his life with Tourette syndromeLearn about Tourette syndrome and listen to a young boy talk about his life with Tourette syndromeSee all videos for this article

Tourette syndrome, rare inherited neurological disorder characterized by recurrent motor and phonic tics (involuntary muscle spasms and vocalizations). It is three times more prevalent in males than in females. Although the cause of Tourette syndrome is unknown, evidence suggests that there may be an abnormality of one or more chemical neurotransmitters in the brain.

It is named for Georges Gilles de la Tourette, who first described the disorder in 1885. The English author Samuel Johnson may have suffered from a form of the disorder, based on contemporary descriptions of his facial tics and of the strange vocalizations interrupting his normal speech.

The onset of Tourette syndrome usually occurs between the ages of 2 and 15 and continues into adulthood. Motor tics precede phonic tics in about 80 percent of the cases. Individuals with milder forms of the disorder may exhibit either motor or phonic tics but not both.

Echolalia (a compulsion to repeat words heard) and palilalia (spontaneous repetition of one’s own words) are two distinctive symptoms of Tourette syndrome. Coprolalia, the compulsion to utter obscenities, may also be present. Other vocalizations that may occur include grunts, barks, hisses, whistles, and other meaningless sounds. Motor tics may be simple actions that are virtually unnoticeable. More complex tics usually involve the shoulders, head, and face and may include hopping, clapping, blinking, and fist clenching. Sleep, intense concentration, and physical exertion tend to suppress the symptoms, while stress exacerbates them.

There is no cure for Tourette syndrome; though symptoms may improve with age. Medications are used only when symptoms interfere with functioning; haloperidol is the most commonly prescribed medication for Tourette syndrome, but pimozide, fluphenazine, clonazepam, and clonidine are also effective in reducing the frequency and intensity of tics.

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