Lateralization of motor imagery following stroke

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dc.contributor.author Stinear, Cathy en
dc.contributor.author Fleming, Melanie en
dc.contributor.author Barber, Peter en
dc.contributor.author Byblow, Winston en
dc.date.accessioned 2012-03-12T02:24:23Z en
dc.date.issued 2007 en
dc.identifier.citation Clin Neurophysiol 118(8):1794-1801 Aug 2007 en
dc.identifier.issn 1388-2457 en
dc.identifier.uri http://hdl.handle.net/2292/13881 en
dc.description.abstract Objective: Motor imagery may activate the primary motor cortex (M I) and promote functional recovery following stroke. We investigated whether the hemisphere affected by stroke affects performance and M1 activity during motor imagery.Methods: Twelve stroke patients (6 left, 6 right hemisphere) and eight healthy age-matched adults participated. Experiment 1 assessed the speed and ease of actual and imagined motor performance. Experiment 2 measured corticomotor excitability during imagined movement of each hand separately, and both hands together, using transcranial magnetic stimulation.Results: For control participants, imagined movements were performed more slowly than actual movements, and right-hand MEPs were facilitated when they imagined moving their right hand or both hands together. Patients reported being able to imagine movements with either hand, despite no measurable facilitation of MEN in the stroke-affected hand. In left hemisphere patients, MEPs were facilitated in the left hand during imagery of the right hand and both hands together. In right hemisphere patients, motor imagery did not facilitate MEN in either hand.Conclusions: Motor imagery does not appear to facilitate the ipsilesional W following stroke.Significance: Motor imagery may play a role in rehabilitating movement planning, but its role in directly facilitating corticomotor output appears limited. (c) 2007 International Federation of Clinical Neurophysiology. Published by Elsevier Ireland Ltd. All rights reserved. en
dc.language EN en
dc.publisher ELSEVIER IRELAND LTD en
dc.relation.ispartofseries Clinical Neurophysiology en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from http://www.sherpa.ac.uk/romeo/issn/1388-2457/ en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.subject cortex en
dc.subject motor activity en
dc.subject transcranial magnetic stimulation en
dc.subject rehabilitation en
dc.subject TRANSCRANIAL MAGNETIC STIMULATION en
dc.subject IMAGINED HAND MOVEMENTS en
dc.subject INPUT-OUTPUT PROPERTIES en
dc.subject CORTICOSPINAL EXCITABILITY en
dc.subject MENTAL PRACTICE en
dc.subject REHABILITATION en
dc.subject PERFORMANCE en
dc.subject AREAS en
dc.subject REAL en
dc.subject REPRESENTATIONS en
dc.title Lateralization of motor imagery following stroke en
dc.type Journal Article en
dc.identifier.doi 10.1016/j.clinph.2007.05.008 en
pubs.issue 8 en
pubs.begin-page 1794 en
pubs.volume 118 en
dc.rights.holder Copyright: International Federation of Clinical Neurophysiology en
dc.identifier.pmid 17581773 en
pubs.end-page 1801 en
pubs.publication-status Published en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Article en
pubs.elements-id 71868 en
pubs.org-id Medical and Health Sciences en
pubs.org-id School of Medicine en
pubs.org-id Medicine Department en
pubs.org-id Science en
pubs.org-id Exercise Sciences en
pubs.record-created-at-source-date 2010-09-01 en
pubs.dimensions-id 17581773 en


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