As shown in Table II, in
the case of elbow joint torque, the error of the estimation
results based on EMG signals is 0.0005253. On the other hand,
the error of the estimation results based on EMG and EEG
signals is 0.02092. From those error values, it is confirmed that
the accuracy of the estimation results with EEG and EMG
signals is lower than the accuracy with only EMG signals.