Analysis of Cerebral and Muscle Activity during Control of a Corticospinal Neural Interface.

Autor: Bobrova, E. V., Reshetnikova, V. V., Grishin, A. A., Vershinina, E. A., Isaev, M. R., Plyachenko, D. R., Bobrov, P. D., Gerasimenko, Yu. P.
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Zdroj: Neuroscience & Behavioral Physiology; Nov2023, Vol. 53 Issue 9, p1574-1583, 10p
Abstrakt: A corticospinal neural interface was developed on the basis of kinesthetic imagery of dorsiflexion of the foot complemented by the Biokin robotic limb movement device and transcutaneous electrical stimulation of the spinal cord (TESSC). The classification accuracy (CA – the proportion of correct responses) of EEG brain signals while working with the neural interface was found to average 68% and to increase significantly, by 9%, on addition of mechanotherapy and TESSC. The EMG activity of the tibialis anterior muscle (TA), which dorsiflexes the foot, increased when subjects were instructed to imagine movement as compared with the activity when the instruction was to remain at rest. Addition of mechanotherapy and TESSC when using the neural interface had a greater effect not by increasing TA activity when imagining movement of the ipsilateral foot, but by reducing TA activity when instructed to remain at rest. The effects identified here appear to be important for forming appropriate coordination patterns of control signals from the central nervous system and muscle activity during performance of movements and can be used in clinical rehabilitation of motor activity using the corticospinal neural interface. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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