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The effect of visual and proprioceptive feedback on sensorimotor rhythms during BCI training

Brain–computer interfaces (BCI) can be designed with several feedback modalities. To promote appropriate brain plasticity in therapeutic applications, the feedback should guide the user to elicit the desired brain activity and preferably be similar to the imagined action. In this study, we employed...

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Detalles Bibliográficos
Autores principales: Halme, Hanna-Leena, Parkkonen, Lauri
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8865669/
https://www.ncbi.nlm.nih.gov/pubmed/35196360
http://dx.doi.org/10.1371/journal.pone.0264354
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author Halme, Hanna-Leena
Parkkonen, Lauri
author_facet Halme, Hanna-Leena
Parkkonen, Lauri
author_sort Halme, Hanna-Leena
collection PubMed
description Brain–computer interfaces (BCI) can be designed with several feedback modalities. To promote appropriate brain plasticity in therapeutic applications, the feedback should guide the user to elicit the desired brain activity and preferably be similar to the imagined action. In this study, we employed magnetoencephalography (MEG) to measure neurophysiological changes in healthy subjects performing motor imagery (MI) -based BCI training with two different feedback modalities. The MI-BCI task used in this study lasted 40–60 min and involved imagery of right- or left-hand movements. 8 subjects performed the task with visual and 14 subjects with proprioceptive feedback. We analysed power changes across the session at multiple frequencies in the range of 4–40 Hz with a generalized linear model to find those frequencies at which the power increased significantly during training. In addition, the power increase was analysed for each gradiometer, separately for alpha (8–13 Hz), beta (14–30 Hz) and gamma (30–40 Hz) bands, to find channels showing significant linear power increase over the session. These analyses were applied during three different conditions: rest, preparation, and MI. Visual feedback enhanced the amplitude of mainly high beta and gamma bands (24–40 Hz) in all conditions in occipital and left temporal channels. During proprioceptive feedback, in contrast, power increased mainly in alpha and beta bands. The alpha-band enhancement was found in multiple parietal, occipital, and temporal channels in all conditions, whereas the beta-band increase occurred during rest and preparation mainly in the parieto-occipital region and during MI in the parietal channels above hand motor regions. Our results show that BCI training with proprioceptive feedback increases the power of sensorimotor rhythms in the motor cortex, whereas visual feedback causes mainly a gamma-band increase in the visual cortex. MI-BCIs should involve proprioceptive feedback to facilitate plasticity in the motor cortex.
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spelling pubmed-88656692022-02-24 The effect of visual and proprioceptive feedback on sensorimotor rhythms during BCI training Halme, Hanna-Leena Parkkonen, Lauri PLoS One Research Article Brain–computer interfaces (BCI) can be designed with several feedback modalities. To promote appropriate brain plasticity in therapeutic applications, the feedback should guide the user to elicit the desired brain activity and preferably be similar to the imagined action. In this study, we employed magnetoencephalography (MEG) to measure neurophysiological changes in healthy subjects performing motor imagery (MI) -based BCI training with two different feedback modalities. The MI-BCI task used in this study lasted 40–60 min and involved imagery of right- or left-hand movements. 8 subjects performed the task with visual and 14 subjects with proprioceptive feedback. We analysed power changes across the session at multiple frequencies in the range of 4–40 Hz with a generalized linear model to find those frequencies at which the power increased significantly during training. In addition, the power increase was analysed for each gradiometer, separately for alpha (8–13 Hz), beta (14–30 Hz) and gamma (30–40 Hz) bands, to find channels showing significant linear power increase over the session. These analyses were applied during three different conditions: rest, preparation, and MI. Visual feedback enhanced the amplitude of mainly high beta and gamma bands (24–40 Hz) in all conditions in occipital and left temporal channels. During proprioceptive feedback, in contrast, power increased mainly in alpha and beta bands. The alpha-band enhancement was found in multiple parietal, occipital, and temporal channels in all conditions, whereas the beta-band increase occurred during rest and preparation mainly in the parieto-occipital region and during MI in the parietal channels above hand motor regions. Our results show that BCI training with proprioceptive feedback increases the power of sensorimotor rhythms in the motor cortex, whereas visual feedback causes mainly a gamma-band increase in the visual cortex. MI-BCIs should involve proprioceptive feedback to facilitate plasticity in the motor cortex. Public Library of Science 2022-02-23 /pmc/articles/PMC8865669/ /pubmed/35196360 http://dx.doi.org/10.1371/journal.pone.0264354 Text en © 2022 Halme, Parkkonen https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Halme, Hanna-Leena
Parkkonen, Lauri
The effect of visual and proprioceptive feedback on sensorimotor rhythms during BCI training
title The effect of visual and proprioceptive feedback on sensorimotor rhythms during BCI training
title_full The effect of visual and proprioceptive feedback on sensorimotor rhythms during BCI training
title_fullStr The effect of visual and proprioceptive feedback on sensorimotor rhythms during BCI training
title_full_unstemmed The effect of visual and proprioceptive feedback on sensorimotor rhythms during BCI training
title_short The effect of visual and proprioceptive feedback on sensorimotor rhythms during BCI training
title_sort effect of visual and proprioceptive feedback on sensorimotor rhythms during bci training
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8865669/
https://www.ncbi.nlm.nih.gov/pubmed/35196360
http://dx.doi.org/10.1371/journal.pone.0264354
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