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The instant effect of embodiment via mirror visual feedback on electroencephalogram-based brain connectivity changes: A pilot study

The therapeutic efficacy of mirror visual feedback (MVF) is attributed to the perception of embodiment. This study intends to investigate the instantaneous effect of embodiment on brain connectivity. Twelve healthy subjects were required to clench and open their non-dominant hands and keep the domin...

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Autores principales: Ding, Li, Sun, Qiang, Jiang, Ning, He, Jiayuan, Jia, Jie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10067600/
https://www.ncbi.nlm.nih.gov/pubmed/37021135
http://dx.doi.org/10.3389/fnins.2023.1138406
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author Ding, Li
Sun, Qiang
Jiang, Ning
He, Jiayuan
Jia, Jie
author_facet Ding, Li
Sun, Qiang
Jiang, Ning
He, Jiayuan
Jia, Jie
author_sort Ding, Li
collection PubMed
description The therapeutic efficacy of mirror visual feedback (MVF) is attributed to the perception of embodiment. This study intends to investigate the instantaneous effect of embodiment on brain connectivity. Twelve healthy subjects were required to clench and open their non-dominant hands and keep the dominant hands still during two experimental sessions. In the first session, the dominant hand was covered and no MVF was applied, named the sham-MVF condition. Random vibrotactile stimulations were applied to the non-dominant hand with MVF in the subsequent session. Subjects were asked to pedal while having embodiment perception during motor tasks. As suggested by previous findings, trials of no vibration and continuous vibration were selected for this study, named the condition of MVF and vt-MVF. EEG signals were recorded and the alterations in brain connectivity were analyzed. The average node degrees of sham-MVF, MVF, and vt-MVF conditions were largely different in the alpha band (9.94, 11.19, and 17.37, respectively). Further analyses showed the MVF and vt-MVF had more nodes with a significantly large degree, which mainly occurred in the central and the visual stream involved regions. Results of network metrics showed a significant increment of local and global efficiency, and a reduction of characteristic path length for the vt-MVF condition in the alpha and beta bands compared to sham-MVF, and in the alpha band compared to MVF. Similar trends were found for MVF condition in the beta band compared to sham-MVF. Moreover, significant leftward asymmetry of global efficiency and rightward asymmetry of characteristic path length was reported in the vt-MVF condition in the beta band. These results indicated a positive impact of embodiment on network connectivity and neural communication efficiency, which reflected the potential mechanisms of MVF for new insight into neural modulation.
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spelling pubmed-100676002023-04-04 The instant effect of embodiment via mirror visual feedback on electroencephalogram-based brain connectivity changes: A pilot study Ding, Li Sun, Qiang Jiang, Ning He, Jiayuan Jia, Jie Front Neurosci Neuroscience The therapeutic efficacy of mirror visual feedback (MVF) is attributed to the perception of embodiment. This study intends to investigate the instantaneous effect of embodiment on brain connectivity. Twelve healthy subjects were required to clench and open their non-dominant hands and keep the dominant hands still during two experimental sessions. In the first session, the dominant hand was covered and no MVF was applied, named the sham-MVF condition. Random vibrotactile stimulations were applied to the non-dominant hand with MVF in the subsequent session. Subjects were asked to pedal while having embodiment perception during motor tasks. As suggested by previous findings, trials of no vibration and continuous vibration were selected for this study, named the condition of MVF and vt-MVF. EEG signals were recorded and the alterations in brain connectivity were analyzed. The average node degrees of sham-MVF, MVF, and vt-MVF conditions were largely different in the alpha band (9.94, 11.19, and 17.37, respectively). Further analyses showed the MVF and vt-MVF had more nodes with a significantly large degree, which mainly occurred in the central and the visual stream involved regions. Results of network metrics showed a significant increment of local and global efficiency, and a reduction of characteristic path length for the vt-MVF condition in the alpha and beta bands compared to sham-MVF, and in the alpha band compared to MVF. Similar trends were found for MVF condition in the beta band compared to sham-MVF. Moreover, significant leftward asymmetry of global efficiency and rightward asymmetry of characteristic path length was reported in the vt-MVF condition in the beta band. These results indicated a positive impact of embodiment on network connectivity and neural communication efficiency, which reflected the potential mechanisms of MVF for new insight into neural modulation. Frontiers Media S.A. 2023-03-20 /pmc/articles/PMC10067600/ /pubmed/37021135 http://dx.doi.org/10.3389/fnins.2023.1138406 Text en Copyright © 2023 Ding, Sun, Jiang, He and Jia. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Neuroscience
Ding, Li
Sun, Qiang
Jiang, Ning
He, Jiayuan
Jia, Jie
The instant effect of embodiment via mirror visual feedback on electroencephalogram-based brain connectivity changes: A pilot study
title The instant effect of embodiment via mirror visual feedback on electroencephalogram-based brain connectivity changes: A pilot study
title_full The instant effect of embodiment via mirror visual feedback on electroencephalogram-based brain connectivity changes: A pilot study
title_fullStr The instant effect of embodiment via mirror visual feedback on electroencephalogram-based brain connectivity changes: A pilot study
title_full_unstemmed The instant effect of embodiment via mirror visual feedback on electroencephalogram-based brain connectivity changes: A pilot study
title_short The instant effect of embodiment via mirror visual feedback on electroencephalogram-based brain connectivity changes: A pilot study
title_sort instant effect of embodiment via mirror visual feedback on electroencephalogram-based brain connectivity changes: a pilot study
topic Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10067600/
https://www.ncbi.nlm.nih.gov/pubmed/37021135
http://dx.doi.org/10.3389/fnins.2023.1138406
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