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Differentiating Tic Disorders |
 | | Tics can present as motor or vocal and are categorized as Simple or Complex (3) according to age of onset, duration and severity of symptoms (2). |
 | | With transient tic disorder, the tic may change from one type to another, (sniffing may be replaced by forehead furrowing and then the furrowing is replaced by finger snapping), while in chronic tic disorder the tic remains the same for a very long time. |
 | | Some tics are the result of brain injury, head trauma, or encephalitis, although most tics are commonly called idiopathic, and are part of the spectrum, which includes Gilles de la Tourette Syndrome, or one of the other idiopathic tic disorders (7). |
| serendip.brynmawr.edu /bb/neuro/neuro02/web1/bweiss.html (1616 words) |
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