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• W3164350135 endingPage "046099" @default.
• W3164350135 startingPage "046099" @default.
• W3164350135 abstract "Objective. Brain decoding of motor imagery (MI) not only is crucial for the control of neuroprosthesis but also provides insights into the underlying neural mechanisms. Walking consists of stance and swing phases, which are associated with different biomechanical and neural control features. However, previous knowledge on decoding the MI of gait is limited to simple information (e.g. the classification of 'walking' and 'rest').Approach. Here, we investigated the feasibility of electroencephalogram (EEG) decoding of the two gait phases during the MI of walking and whether the combined use of MI and action observation (AO) would improve decoding accuracy.Main results. We demonstrated that the stance and swing phases could be decoded from EEGs during MI or AO alone. We also demonstrated the decoding accuracy during MI was improved by concurrent AO. The decoding models indicated that the improved decoding accuracy following the combined use of MI and AO was facilitated by the additional information resulting from the concurrent cortical activations related to sensorimotor, visual, and action understanding systems associated with MI and AO.Significance. This study is the first to show that decoding the stance versus swing phases during MI is feasible. The current findings provide fundamental knowledge for neuroprosthetic design and gait rehabilitation, and they expand our understanding of the neural activity underlying AO, MI, and AO + MI of walking.Novelty and significanceBrain decoding of detailed gait-related information during motor imagery (MI) is important for brain-computer interfaces (BCIs) for gait rehabilitation. This study is the first to show the feasibility of EEG decoding of the stance versus swing phases during MI. We also demonstrated that the combined use of MI and action observation (AO) improves decoding accuracy, which is facilitated by the concurrent and synergistic involvement of the cortical activations for MI and AO. These findings extend the current understanding of neural activity and the combined effects of AO and MI and provide a basis for effective techniques for walking rehabilitation." @default.
• W3164350135 created "2021-06-07" @default.
• W3164350135 creator A5005435254 @default.
• W3164350135 creator A5031530665 @default.
• W3164350135 creator A5044347263 @default.
• W3164350135 creator A5062681159 @default.
• W3164350135 date "2021-07-05" @default.
• W3164350135 modified "2023-10-03" @default.
• W3164350135 title "Neural decoding of gait phases during motor imagery and improvement of the decoding accuracy by concurrent action observation" @default.
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• W3164350135 doi "https://doi.org/10.1088/1741-2552/ac07bd" @default.
• W3164350135 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34082405" @default.
• W3164350135 hasPublicationYear "2021" @default.
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