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The relation between attention and tic generation in Tourette syndrome.


ABSTRACT:

Objective

Many neuropsychiatric disorders involve abnormal attentional processing. Systematic investigations of how attention may affect tic frequency in Tourette syndrome are lacking.

Method

Patients performed rhythmic finger movements, approximately once every 2 s. Each movement triggered a unique visual color stimulus. Patients were asked to monitor and remember their finger actions, the external colors caused by their actions, or their tics. Sixteen adult Tourette syndrome patients performed each task twice: once while inhibiting tics, and once without inhibiting tics.

Results

During the "freely tic" condition, patients had significantly fewer tics when attending to finger movements, or to the ensuing colors, compared with when attending to their tics. Attention to fingers produced the fewest tics overall. During tic suppression, tic frequency was reduced to an equal level in all conditions.

Conclusions

Focusing attention away from tics significantly reduces tic frequency. This attentional process may operate by regulating motor noise.

SUBMITTER: Misirlisoy E 

PROVIDER: S-EPMC4484548 | biostudies-literature | 2015 Jul

REPOSITORIES: biostudies-literature

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Publications

The relation between attention and tic generation in Tourette syndrome.

Misirlisoy Erman E   Brandt Valerie V   Ganos Christos C   Tübing Jennifer J   Münchau Alexander A   Haggard Patrick P  

Neuropsychology 20141208 4


<h4>Objective</h4>Many neuropsychiatric disorders involve abnormal attentional processing. Systematic investigations of how attention may affect tic frequency in Tourette syndrome are lacking.<h4>Method</h4>Patients performed rhythmic finger movements, approximately once every 2 s. Each movement triggered a unique visual color stimulus. Patients were asked to monitor and remember their finger actions, the external colors caused by their actions, or their tics. Sixteen adult Tourette syndrome pat  ...[more]

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