Tic
From The Art and Popular Culture Encyclopedia
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| - | A '''tic''' is a sudden, repetitive, stereotyped, nonrhythmic movement (motor tic) or sound (phonic tic) that involves discrete groups of muscles. Tics can be invisible to the observer (e.g.; abdominal tensing or toe crunching). Movements of other [[movement disorder]]s (e.g.; [[chorea (disease)|chorea]], [[dystonia]], [[myoclonus]]) must be distinguished from tics. Other conditions (e.g.; [[autism]], [[stereotypic movement disorder]]) also include movements which may be confused with tics. Tics must also be distinguished from compulsions of [[OCD]] and [[seizure]] activity. | + | A '''tic''' is a sudden, [[repetitive]], [[stereotype]]d, nonrhythmic movement (motor tic) or sound (phonic tic) that involves discrete groups of muscles. Tics can be invisible to the observer (e.g.; abdominal tensing or toe crunching). Movements of other [[movement disorder]]s (e.g.; [[chorea (disease)|chorea]], [[dystonia]], [[myoclonus]]) must be distinguished from tics. Other conditions (e.g.; [[autism]], [[stereotypic movement disorder]]) also include movements which may be confused with tics. Tics must also be distinguished from compulsions of [[OCD]] and [[seizure]] activity. |
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A tic is a sudden, repetitive, stereotyped, nonrhythmic movement (motor tic) or sound (phonic tic) that involves discrete groups of muscles. Tics can be invisible to the observer (e.g.; abdominal tensing or toe crunching). Movements of other movement disorders (e.g.; chorea, dystonia, myoclonus) must be distinguished from tics. Other conditions (e.g.; autism, stereotypic movement disorder) also include movements which may be confused with tics. Tics must also be distinguished from compulsions of OCD and seizure activity.
Unless indicated otherwise, the text in this article is either based on Wikipedia article "Tic" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on research by Jahsonic and friends. See Art and Popular Culture's copyright notice.
