We consider to develop a brain-machine interface (BMI) based rehabilitation system for leg paralysis patients. Thus, we proposed the motion discrimination method for a healthy subject's bicycle ergometer exercise using event related desynchronization (ERD) of electroencephalogram (EEG). On the other hand, steady-state visual evoked potential (SSVEP) occurred in the visual cortex caused by periodic visual stimulation is often used for the feature value of BMI. To verify the possibility of ERD/SSVEP simultaneous utilization, this report carried out the EEG measurement during bicycle ergometer exercise with stimulating his vision using blink checkerboard pattern.
