| Prominent 5-18 Hz oscillations in the pallidal-thalamic circuit in secondary dystonia. | |
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MedLine Citation:
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PMID: 22262749 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Previous studies in primary dystonia suggested that abnormal oscillations of 5-18 Hz in the bilateral internal globus pallidus (GPi) may be a specific feature of dystonia.(1-3) Moreover, voluntary movements were associated with bilateral desynchronization of β (<30 Hz) and contralateral synchronization of γ (∼70 Hz) frequencies in the GPi.(2-4) We recorded local field potentials (LFPs) from the GPi and motor thalamus in a patient with severe hemidystonia to test the following hypotheses. First, the 5-18 Hz synchronization is present in the basal ganglia (BG)-thalamic circuit in patients with secondary dystonia. Second, the bilaterally coherent 5-18 Hz activity may be transmitted between the hemispheres through the motor thalamus. Finally, if the 5-18 Hz rhythm is related to dystonia, attempted movements of dystonic muscles would result in less attenuation of this 5-18 Hz oscillation compared to normal movements. |
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Authors:
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E W Tsang; C Hamani; E Moro; F Mazzella; A M Lozano; I J Yeh; R Chen |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-1-18 |
Journal Detail:
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Title: Neurology Volume: - ISSN: 1526-632X ISO Abbreviation: - Publication Date: 2012 Jan |
Date Detail:
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Created Date: 2012-1-20 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401060 Medline TA: Neurology Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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From the Division of Brain Imaging & Behaviour Systems-Neuroscience (E.W.T., F.M., A.M.L., I.J.Y., R.C.), Toronto Western Research Institute, University Health Network, Toronto; Institute of Medical Science (E.W.T., A.M.L., R.C.), University of Toronto, Toronto; Division of Neurosurgery (C.H., A.M.L.), Division of Neurology (E.M., I.J.Y., R.C.), University Health Network, University of Toronto, Toronto, Canada; and Department of Neurology (I.J.Y.), Songde Branch, Taipei City Hospital, Taipei, Taiwan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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