A BCI-based vibrotactile neurofeedback training improves motor cortical excitability during motor imagery

Grigorev, N.; Savosenkov, A.; Lukoyanov, M.; Udoratina, A.; Shusharina, N.; Kaplan, A.; Hramov, A.; Kazantsev, V.; Gordleeva, S.

Авторы: Grigorev N., Savosenkov A., Lukoyanov M., Udoratina A., Shusharina N., Kaplan A., Hramov A., Kazantsev V., Gordleeva S.
Журнал: IEEE Transactions on Neural Systems and Rehabilitation Engineering
Том: 29
Год издания: 2021
Издательство: Institute of Electrical and Electronics Engineers
Местоположение издательства: Piscataway, NJ, United States
Первая страница: 1583
Последняя страница: 1592
DOI: 10.1101/2021.02.28.433220
Аннотация: In this study, we address the issue of whether vibrotactile feedback can enhance the motor cortex excitability translated into the plastic changes in local cortical areas during motor imagery (MI) BCI-based training. For this purpose, we focused on two of the most notable neurophysiological effects of MI – the event-related-desynchronization (ERD) level and the increase in cortical excitability assessed with navigated transcranial magnetic stimulation (nTMS). For TMS navigation, we used individual high-resolution 3D brain MRIs. Ten BCI-naive and healthy adults participated in this study. The MI (rest or left/right hand imagery using Graz-BCI paradigm) tasks were performed separately in the presence and absence of feedback. To investigate how much the presence/absence of vibrotactile feedback in MI BCI-based training could contribute to the sensorimotor cortical activations, we compared the MEPs amplitude during MI after training with and without feedback. In addition, the ERD levels during MI BCI-based training were investigated. Our findings provide evidence that applying vibrotactile feedback during MI training leads to (i) an enhancement of the desynchronization level of mu-rhythm EEG patterns over the contralateral motor cortex area corresponding to the MI of the non-dominant hand; (ii) an increase in motor cortical excitability in hand muscle representation corresponding to a muscle engaged by the MI.
Добавил в систему: Каплан Александр Яковлевич

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A BCI-based vibrotactile neurofeedback training improves motor cortical excitability during motor imageryстатья

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