Reorganization of Bioelectrical Activity in the Neocortex after Stroke by Rehabilitation Using a Brain–Computer Interface Controlling a Wrist Exoskeleton
| Autor: | Anna Kondur, Kotov Sv, E. V. Zaitseva, E. V. Biryukova, L. G. Turbina, E. V. Isakova, Alexander A. Frolov, M. V. Romanova |
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| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
Neocortex medicine.diagnostic_test business.industry General Neuroscience Electroencephalography Lateralization of brain function 03 medical and health sciences 030104 developmental biology 0302 clinical medicine medicine.anatomical_structure Neuroplasticity Medicine Primary motor cortex business Functional magnetic resonance imaging Neuroscience 030217 neurology & neurosurgery Motor cortex Brain–computer interface |
| Zdroj: | Neuroscience and Behavioral Physiology. 50:1146-1154 |
| ISSN: | 1573-899X 0097-0549 |
| Popis: | The process of the functional rearrangement of the motor cortex of the brain after stroke is due to neuroplasticity, and this underlies motor recovery. Functional magnetic resonance imaging (fMRI) and electroencephalography (EEG) are currently recognized as the most informative methods for studying these processes. The course of the neuroplastic process can be evaluated from the power levels of EEG rhythms during imagination of movements in the paralyzed arm in right-handed patients after stroke in the left hemisphere monitored at different times – before and after courses of neurorehabilitation using a brain–computer interface controlling a wrist exoskeleton. Powerful excitatory interactions in the primary motor cortex and frontoparietal areas in the lesioned and “intact” hemispheres are initially seen, and these probably reflect reorganization of neural networks. Rehabilitation courses were followed by restoration of bioelectrical activity in the primary motor cortex due to recovery of efficient connections with the premotor and superior parietal zones and decreases in the pathological influences of the contralateral hemisphere. |
| Databáze: | OpenAIRE |
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