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Title:: Research on upper and lower limb rehabilitation system based on brain-computer interface technology

Author(s):: GAO Nuo; ZHANG Hui; GAO Zhidong; CHEN Pengcheng; Information & Electrical Engineering Department, Shandong Jianzhu University, Jinan 250101, China

Keywords:: Stroke; Brain-computer interface; Nerve remodeling; Passive training; Rehabilitation treatment

摘要:: 本研究以脑卒中后存在运动功能性障碍的患者为研究对象，开发了基于脑机接口技术的上下肢康复系统，并对其康复效果进行了分析。根据患者的康复需求，系统设计了主动、被动和脑控三种康复模式，其中脑控康复训练利用脑机接口（brain- computer interface，BCI）技术，通过采集患者大脑的脑电信号，在人体外仿生构造一条大脑到肢体的神经通路，将患者的被动训练转化为主动控制，这种训练模式不但提高了患者的康复训练的主动性，还可以对其损伤的中枢神经形成一种反馈，用来刺激大脑神经的重塑或代偿，有效解决了传统康复疗法中存在被动介导的问题。

Abstract:: To take patients with motor dysfunction after stroke as the research object, we developed a rehabilitation system for upper and lower limbs based on brain-computer interface technology, and analyzed its rehabilitation effects. According to the patient′s rehabilitation needs, the system has designed three rehabilitation modes: active, passive, and brain-controlled. The brain-controlled rehabilitation training used brain-computer interface (BCI) technology to collect the brain electrical signals of the patient. The human body bionic constructed a neural pathway from the brain to the limbs, which transformed the patient′s passive training into active control. This training mode not only improves the patient′s initiative in rehabilitation training, but also provides feedback to the injured central nervous system. It is used to stimulate the remodeling or compensation of brain nerves, effectively solving the passive mediation problem in traditional rehabilitation therapy.