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The visual amplification of goal-oriented movements counteracts acquired non-use in hemiparetic stroke patients.

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dc.contributor.author Rubio Ballester, Belén
dc.contributor.author Nirme, Jens
dc.contributor.author Duarte Oller, Esther
dc.contributor.author Cuxart, Ampar
dc.contributor.author Rodriguez, Susana
dc.contributor.author Verschure, Paul F. M. J.
dc.contributor.author Duff, Armin
dc.date.accessioned 2015-11-03T11:11:24Z
dc.date.available 2015-11-03T11:11:24Z
dc.date.issued 2015
dc.identifier.citation Rubio Ballester B, Nirme J, Duarte E, Cuxart A, Rodriguez S5, Verschure P. et al. The visual amplification of goal-oriented movements counteracts acquired non-use in hemiparetic stroke patients. J Neuroeng Rehabil. 2015 Jun 9;12:50. doi: 10.1186/s12984-015-0039-z.
dc.identifier.issn 1743-0003
dc.identifier.uri http://hdl.handle.net/10230/24986
dc.description.abstract BACKGROUND: Stroke-induced impairments result from both primary and secondary causes, i.e. damage to the brain and the acquired non-use of the impaired limbs. Indeed, stroke patients often under-utilize their paretic limb despite sufficient residual motor function. We hypothesize that acquired non-use can be overcome by reinforcement-based training strategies. METHODS: Hemiparetic stroke patients (n = 20, 11 males, 9 right-sided hemiparesis) were asked to reach targets appearing in either the real world or in a virtual environment. Sessions were divided into 3 phases: baseline, intervention and washout. During the intervention the movement of the virtual representation of the patients' paretic limb was amplified towards the target. RESULTS: We found that the probability of using the paretic limb during washout was significantly higher in comparison to baseline. Patients showed generalization of these results by displaying a more substantial workspace in real world task. These gains correlated with changes in effector selection patterns. CONCLUSIONS: The amplification of the movement of the paretic limb in a virtual environment promotes the use of the paretic limb in stroke patients. Our findings indicate that reinforcement-based therapies may be an effective approach for counteracting learned non-use and may modulate motor performance in the real world.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Biomed central
dc.relation.ispartof Journal of NeuroEngineering and Rehabilitation. 2015 Jun 9;12:50
dc.rights © 2015 Rubio Ballester et al. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http:///ncreativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
dc.rights.uri http://creativecommons.org/licenses/by/4.0/
dc.subject.other Infart cerebral
dc.title The visual amplification of goal-oriented movements counteracts acquired non-use in hemiparetic stroke patients.
dc.type info:eu-repo/semantics/article
dc.identifier.doi http://dx.doi.org/10.1186/s12984-015-0039-z
dc.rights.accessRights info:eu-repo/semantics/openAccess
dc.type.version info:eu-repo/semantics/publishedVersion

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