| Delayed experience of volition in Gilles de la Tourette syndrome. | |
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MedLine Citation:
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PMID: 21212106 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Gilles de la Tourette's syndrome (TS) is a neuropsychiatric movement disorder characterised by the presence of multiple tics. Tics have an unusual, intermediate status between voluntary and involuntary movements. This ambiguity might involve not just a disorder of movement generation but also an abnormality of voluntary experience. Here the experience of voluntary movements in adult patients with TS is investigated and compared with healthy controls. A group of adult TS patients and age matched control participants estimated the time of conscious intention to perform a simple keypress movement and movement onset. Patients with TS showed a delayed experience of intention relative to controls whereas estimates of the actual movement onset were similar for patients and controls. These data suggest an abnormal experience of volition in patients with TS. Delayed volition could either be an additional intrinsic feature of the syndrome or it could reflect a cognitive strategy to limit motor excitability, and thus tic generation, during voluntary action. |
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Authors:
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Giovanna Moretto; Petra Schwingenschuh; Petra Katschnig; Kailash P Bhatia; Patrick Haggard |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-1-6 |
Journal Detail:
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Title: Journal of neurology, neurosurgery, and psychiatry Volume: - ISSN: 1468-330X ISO Abbreviation: - Publication Date: 2011 Jan |
Date Detail:
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Created Date: 2011-1-7 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 2985191R Medline TA: J Neurol Neurosurg Psychiatry Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Institute of Cognitive Neuroscience, University College London, London, UK. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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