Chapter 20.Tic Disorders
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Excerpt
Tic disorders are highly prevalent in children and adolescents, but tic-related impairment varies. Considerable data have accrued in the past several decades regarding the interplay of genetic risks, environmental exposures, and stress on the clinical phenomenology of tic disorders. Growing knowledge of the neurobiology and phenomenology of tic disorders has sharpened our understanding of the connection between thought and motor activity and facilitated discovery of areas of the brain that influence much more than we had previously thought. Insight into the underlying brain mechanisms involved in tic disorders has increased the opportunity to develop more specific treatment targets, whether psychosocial or pharmacological.
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