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      Effect of immersive virtual mirror visual feedback on Mu suppression and coherence in motor and parietal cortex in stroke

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          Abstract

          We investigated the activation pattern of the motor cortex (M1) and parietal cortex during immersive virtual reality (VR)-based mirror visual feedback (MVF) of the upper limb in 14 patients with chronic stroke and severe upper limb hemiparesis and in 21 healthy controls. Participants performed wrist extension with unaffected wrists (dominant side in controls). In the MVF condition, movement of the affected hand was synchronized with that of the unaffected hand. In the no-MVF condition, only the movement of unaffected hand was shown. Mu suppression in bilateral M1 and parietal cortex and mu coherence were analyzed. In patients with stroke, MVF induced significant mu suppression in both the ipsilesional M1 and parietal lobes (p = 0.006 and p = 0.009, respectively), while mu suppression was observed in the bilateral M1 (p = 0.003 for ipsilesional and p = 0.041 for contralesional M1, respectively) and contralesional parietal lobes in the controls (p = 0.036). The ipsilesional mu coherence between the M1 and parietal cortex in patients with stroke was stronger than controls, regardless of MVF condition (p < 0.001), while mu coherence between interhemispheric M1 cortices was significantly weaker in patients with stroke (p = 0.032). Our findings provide evidence of the neural mechanism of MVF using immersive VR in patients with stroke.

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          World Medical Association Declaration of Helsinki: ethical principles for medical research involving human subjects.

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            Guidelines for Adult Stroke Rehabilitation and Recovery: A Guideline for Healthcare Professionals From the American Heart Association/American Stroke Association

            The aim of this guideline is to provide a synopsis of best clinical practices in the rehabilitative care of adults recovering from stroke.
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              Independent component analysis: algorithms and applications

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                Author and article information

                Contributors
                wondol77@gmail.com
                jeonghun.Ku@gmail.com
                Journal
                Sci Rep
                Sci Rep
                Scientific Reports
                Nature Publishing Group UK (London )
                2045-2322
                2 August 2023
                2 August 2023
                2023
                : 13
                : 12514
                Affiliations
                [1 ]GRID grid.412480.b, ISNI 0000 0004 0647 3378, Department of Rehabilitation Medicine, , Seoul National University College of Medicine, Seoul National University Bundang Hospital, ; Seongnam, Republic of Korea
                [2 ]GRID grid.412091.f, ISNI 0000 0001 0669 3109, Department of Biomedical Engineering, College of Medicine, , Keimyung University, ; 1095, Dalgubeol-daero, Dalseo-gu, Daegu, Republic of Korea
                [3 ]Bundang Rusk Rehabilitation Speciality Hospital, Seongnam, Republic of Korea
                [4 ]GRID grid.412091.f, ISNI 0000 0001 0669 3109, Department of Biomedical Engineering, School of Medicine, , Keimyung University, ; Daegu, Republic of Korea
                Article
                38749
                10.1038/s41598-023-38749-8
                10397282
                37532803
                0cdef86c-909c-4c80-b171-43b97e7aa9cd
                © The Author(s) 2023

                Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

                History
                : 24 March 2023
                : 14 July 2023
                Funding
                Funded by: SNUBH Research Fund
                Award ID: 20-2016-032
                Award Recipient :
                Funded by: National Research Foundation of Korea
                Award ID: NRF-2022R1A2C1006046
                Award Recipient :
                Categories
                Article
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                © Springer Nature Limited 2023

                Uncategorized
                neurological disorders,neuroscience
                Uncategorized
                neurological disorders, neuroscience

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