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Feature Identification of EEG Preparatory Response Signals Evoked by Motor Intention |
FU Rong-rong1,2,LIANG Hai-feng1,MI Rui-fu1 |
1. School of Electrical Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China
2. Jiangxi new energy technology institute, Xinyu, Jiangxi 338004, China |
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Abstract The motor intention contained in the preparation response to electroencephalogram (EEG) signals is extracted and recognized, and the pre-movement EEG patterns is decoded. The experimental results show that using the common spatial pattern (CSP) and extreme learning machines (ELM) can efficiently distinguish the preparation potential of the left and right hands before real movement, and the average recognition accuracy rate of EEG data induced by the preparation before the execution of the brain computer interface (BCI) competition can reach 85.7%. On the decoding problem, compared with motor imagery (MI) EEG signals, the preparatory potential saves the time from consciousness generation to action execution, improves the response efficiency of operational task execution, and provides theoretical basis and technical support for efficient BCI based on motor intention.
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Received: 20 June 2022
Published: 10 October 2023
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