Continuous Decoding of Movement Onset and Offset of Sustained Movements   from Cortical Activities

CORC > 北京大学 > 工学院

	Continuous Decoding of Movement Onset and Offset of Sustained Movements from Cortical Activities
	Sun, Shiqi ; Cao, Xiya ; Wang, Qining
	2016
关键词	MOTOR IMAGERY SYNCHRONIZATION EEG
英文摘要	Detection of movement intention from neural signals combined with assistant device provides an effective tool for neurorehabilitation. Since sustained movements are often required in motor rehabilitation therapies, it is important to monitor the onset and offset of the movement to ensure the participation of patients. In this study, we compared the movement-related cortical potentials (MRCPs) and event-related (de) synchronization (ERD/ERS) between different duration sustained movements. For mid and long duration movements, there are obvious MRCP and ERD around movement offset and the amplitude of MRCP increases as the duration increases. Besides, we built a pseudo-online detection system to detect the onset and offset of the movement. The average true positive rate (TPR) of onset detection is 85.2%. Compared to the onset, the offset is more difficult to detect, whose average TPR is 65.3%. This study could help us further understand the neural mechanism during sustained movements and provide guidance to build brain computer interface (BCI) for close-loop rehabilitation.; National Program for Support of Top-notch Young Professionals; Beijing Municipal Science and Technology Project [Z151100003715001, Z151100000915073]; Beijing Disabled Persons' Federation; Beijing Nova Program [Z141101001814001]; CPCI-S(ISTP); 809-814
会议录	IEEE/SICE International Symposium on System Integration (SII)
语种	英语
内容类型	会议论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/470176]
专题	工学院
推荐引用方式 GB/T 7714	Sun, Shiqi,Cao, Xiya,Wang, Qining. Continuous Decoding of Movement Onset and Offset of Sustained Movements from Cortical Activities[C]. 见:.