1. Osaka University, Graduate School of Medicine, Department of Neurology, 2-2 Yamadaoka, Suita, Osaka 565-0871, JapanbOsaka University, Global Center for Medical Engineering and Informatics, Division of Clinical Neuroengineering, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
2. Morinomiya Hospital, Neurorehabilitation Research Institute, 2-1-88 Morinomiya, Jyoto-ku, Osaka, Osaka 536-0025, Japan