Cargando…

The Differences Between Motor Attempt and Motor Imagery in Brain-Computer Interface Accuracy and Event-Related Desynchronization of Patients With Hemiplegia

Background: Motor attempt and motor imagery (MI) are two common motor tasks used in brain-computer interface (BCI). They are widely researched for motor rehabilitation in patients with hemiplegia. The differences between the motor attempt (MA) and MI tasks of patients with hemiplegia can be used to...

Descripción completa

Detalles Bibliográficos
Autores principales: Chen, Shugeng, Shu, Xiaokang, Wang, Hewei, Ding, Li, Fu, Jianghong, Jia, Jie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8602190/
https://www.ncbi.nlm.nih.gov/pubmed/34803647
http://dx.doi.org/10.3389/fnbot.2021.706630
_version_ 1784601525428944896
author Chen, Shugeng
Shu, Xiaokang
Wang, Hewei
Ding, Li
Fu, Jianghong
Jia, Jie
author_facet Chen, Shugeng
Shu, Xiaokang
Wang, Hewei
Ding, Li
Fu, Jianghong
Jia, Jie
author_sort Chen, Shugeng
collection PubMed
description Background: Motor attempt and motor imagery (MI) are two common motor tasks used in brain-computer interface (BCI). They are widely researched for motor rehabilitation in patients with hemiplegia. The differences between the motor attempt (MA) and MI tasks of patients with hemiplegia can be used to promote BCI application. This study aimed to explore the accuracy of BCI and event-related desynchronization (ERD) between the two tasks. Materials and Methods: We recruited 13 patients with stroke and 3 patients with traumatic brain injury, to perform MA and MI tasks in a self-control design. The BCI accuracies from the bilateral, ipsilesional, and contralesional hemispheres were analyzed and compared between different tasks. The cortical activation patterns were evaluated with ERD and laterality index (LI). Results: The study showed that the BCI accuracies of MA were significantly (p < 0.05) higher than MI in the bilateral, ipsilesional, and contralesional hemispheres in the alpha-beta (8–30 Hz) frequency bands. There was no significant difference in ERD and LI between the MA and MI tasks in the 8–30 Hz frequency bands. However, in the MA task, there was a negative correlation between the ERD values in the channel CP1 and ipsilesional hemispheric BCI accuracies (r = −0.552, p = 0.041, n = 14) and a negative correlation between the ERD values in channel CP2 and bilateral hemispheric BCI accuracies (r = −0.543, p = 0.045, n = 14). While in the MI task, there were negative correlations between the ERD values in channel C4 and bilateral hemispheric BCI accuracies (r = −0.582, p = 0.029, n = 14) as well as the contralesional hemispheric BCI accuracies (r = −0.657, p = 0.011, n = 14). As for motor dysfunction, there was a significant positive correlation between the ipsilesional BCI accuracies and FMA scores of the hand part in 8–13 Hz (r = 0.565, p = 0.035, n = 14) in the MA task and a significant positive correlation between the ipsilesional BCI accuracies and FMA scores of the hand part in 13–30 Hz (r = 0.558, p = 0.038, n = 14) in the MI task. Conclusion: The MA task may achieve better BCI accuracy but have similar cortical activations with the MI task. Cortical activation (ERD) may influence the BCI accuracy, which should be carefully considered in the BCI motor rehabilitation of patients with hemiplegia.
format Online
Article
Text
id pubmed-8602190
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher Frontiers Media S.A.
record_format MEDLINE/PubMed
spelling pubmed-86021902021-11-20 The Differences Between Motor Attempt and Motor Imagery in Brain-Computer Interface Accuracy and Event-Related Desynchronization of Patients With Hemiplegia Chen, Shugeng Shu, Xiaokang Wang, Hewei Ding, Li Fu, Jianghong Jia, Jie Front Neurorobot Neuroscience Background: Motor attempt and motor imagery (MI) are two common motor tasks used in brain-computer interface (BCI). They are widely researched for motor rehabilitation in patients with hemiplegia. The differences between the motor attempt (MA) and MI tasks of patients with hemiplegia can be used to promote BCI application. This study aimed to explore the accuracy of BCI and event-related desynchronization (ERD) between the two tasks. Materials and Methods: We recruited 13 patients with stroke and 3 patients with traumatic brain injury, to perform MA and MI tasks in a self-control design. The BCI accuracies from the bilateral, ipsilesional, and contralesional hemispheres were analyzed and compared between different tasks. The cortical activation patterns were evaluated with ERD and laterality index (LI). Results: The study showed that the BCI accuracies of MA were significantly (p < 0.05) higher than MI in the bilateral, ipsilesional, and contralesional hemispheres in the alpha-beta (8–30 Hz) frequency bands. There was no significant difference in ERD and LI between the MA and MI tasks in the 8–30 Hz frequency bands. However, in the MA task, there was a negative correlation between the ERD values in the channel CP1 and ipsilesional hemispheric BCI accuracies (r = −0.552, p = 0.041, n = 14) and a negative correlation between the ERD values in channel CP2 and bilateral hemispheric BCI accuracies (r = −0.543, p = 0.045, n = 14). While in the MI task, there were negative correlations between the ERD values in channel C4 and bilateral hemispheric BCI accuracies (r = −0.582, p = 0.029, n = 14) as well as the contralesional hemispheric BCI accuracies (r = −0.657, p = 0.011, n = 14). As for motor dysfunction, there was a significant positive correlation between the ipsilesional BCI accuracies and FMA scores of the hand part in 8–13 Hz (r = 0.565, p = 0.035, n = 14) in the MA task and a significant positive correlation between the ipsilesional BCI accuracies and FMA scores of the hand part in 13–30 Hz (r = 0.558, p = 0.038, n = 14) in the MI task. Conclusion: The MA task may achieve better BCI accuracy but have similar cortical activations with the MI task. Cortical activation (ERD) may influence the BCI accuracy, which should be carefully considered in the BCI motor rehabilitation of patients with hemiplegia. Frontiers Media S.A. 2021-11-05 /pmc/articles/PMC8602190/ /pubmed/34803647 http://dx.doi.org/10.3389/fnbot.2021.706630 Text en Copyright © 2021 Chen, Shu, Wang, Ding, Fu 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
Chen, Shugeng
Shu, Xiaokang
Wang, Hewei
Ding, Li
Fu, Jianghong
Jia, Jie
The Differences Between Motor Attempt and Motor Imagery in Brain-Computer Interface Accuracy and Event-Related Desynchronization of Patients With Hemiplegia
title The Differences Between Motor Attempt and Motor Imagery in Brain-Computer Interface Accuracy and Event-Related Desynchronization of Patients With Hemiplegia
title_full The Differences Between Motor Attempt and Motor Imagery in Brain-Computer Interface Accuracy and Event-Related Desynchronization of Patients With Hemiplegia
title_fullStr The Differences Between Motor Attempt and Motor Imagery in Brain-Computer Interface Accuracy and Event-Related Desynchronization of Patients With Hemiplegia
title_full_unstemmed The Differences Between Motor Attempt and Motor Imagery in Brain-Computer Interface Accuracy and Event-Related Desynchronization of Patients With Hemiplegia
title_short The Differences Between Motor Attempt and Motor Imagery in Brain-Computer Interface Accuracy and Event-Related Desynchronization of Patients With Hemiplegia
title_sort differences between motor attempt and motor imagery in brain-computer interface accuracy and event-related desynchronization of patients with hemiplegia
topic Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8602190/
https://www.ncbi.nlm.nih.gov/pubmed/34803647
http://dx.doi.org/10.3389/fnbot.2021.706630
work_keys_str_mv AT chenshugeng thedifferencesbetweenmotorattemptandmotorimageryinbraincomputerinterfaceaccuracyandeventrelateddesynchronizationofpatientswithhemiplegia
AT shuxiaokang thedifferencesbetweenmotorattemptandmotorimageryinbraincomputerinterfaceaccuracyandeventrelateddesynchronizationofpatientswithhemiplegia
AT wanghewei thedifferencesbetweenmotorattemptandmotorimageryinbraincomputerinterfaceaccuracyandeventrelateddesynchronizationofpatientswithhemiplegia
AT dingli thedifferencesbetweenmotorattemptandmotorimageryinbraincomputerinterfaceaccuracyandeventrelateddesynchronizationofpatientswithhemiplegia
AT fujianghong thedifferencesbetweenmotorattemptandmotorimageryinbraincomputerinterfaceaccuracyandeventrelateddesynchronizationofpatientswithhemiplegia
AT jiajie thedifferencesbetweenmotorattemptandmotorimageryinbraincomputerinterfaceaccuracyandeventrelateddesynchronizationofpatientswithhemiplegia
AT chenshugeng differencesbetweenmotorattemptandmotorimageryinbraincomputerinterfaceaccuracyandeventrelateddesynchronizationofpatientswithhemiplegia
AT shuxiaokang differencesbetweenmotorattemptandmotorimageryinbraincomputerinterfaceaccuracyandeventrelateddesynchronizationofpatientswithhemiplegia
AT wanghewei differencesbetweenmotorattemptandmotorimageryinbraincomputerinterfaceaccuracyandeventrelateddesynchronizationofpatientswithhemiplegia
AT dingli differencesbetweenmotorattemptandmotorimageryinbraincomputerinterfaceaccuracyandeventrelateddesynchronizationofpatientswithhemiplegia
AT fujianghong differencesbetweenmotorattemptandmotorimageryinbraincomputerinterfaceaccuracyandeventrelateddesynchronizationofpatientswithhemiplegia
AT jiajie differencesbetweenmotorattemptandmotorimageryinbraincomputerinterfaceaccuracyandeventrelateddesynchronizationofpatientswithhemiplegia