一种新型结合下肢动觉运动想象和视觉运动想象的脑机接口

董煜阳, 龚安民, 丁鹏, 袁密桁, 王东庆, 伏云发

A new BCI by combining kinesthetic motor imagery and visual motor imagery involving lower limbs

Yuyang Dong, Anmin Gong, Peng Ding, Miheng Yuan, Dongqing Wang, Yunfa Fu

表3 12名被试运动想象（以KMI方式分别进行屈膝和伸膝，VKMI方式行走，三分类）的在线准确率、ITR和Kappa系数

Table 3 Online accuracy，ITR and Kappa coefficients of 12 subjects' motor imagery (knee flexion and extension with KMI and walking with VKMI, 3 classes)

被试 准确率 ITR Kappa S1 66.7% 6.49 0.5 S2 60% 4.17 0.4 S3 60% 4.17 0.42 S4 60% 4.17 0.4 S5 86.7% 17.24 0.8 S6 66.7% 6.49 0.5 S7 66.7% 6.49 0.51 S8 53.3% 2.37 0.3 S9 53.3% 2.37 0.3 S10 60% 4017 0.38 S11 66.7% 6.49 0.5 S12 60% 4.17 0.4 Mean 63.29% 5.73 0.45 SD 0.09 3.93 0.13