1 Clinical Neurotechnology Laboratory, Department of Psychiatry and Neurosciences (CCM), Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.
2 Institute of Innovative Research, Tokyo Institute of Technology, 4259-J3-10, Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
3 Unit of Advanced Robotics and Human-Centred Technologies (CREO Lab), University Campus Bio-Medico of Rome, Via Álvaro del Portillo, 21, 00128 Roma RM, Italy.