1 The BioRobotics Institute and Department of AI and Robotics, Scuola Superiore Sant'Anna, Pisa, Italy. silvestro.micera@epfl.ch.
2 Bertarelli Foundation, Translational Neuroengineering, Center for Neuroprosthetics and Institute of Bioengineering, School of Bioengineering, ePFL, Lausanne, Switzerland. silvestro.micera@epfl.ch.
3 The BioRobotics Institute and Department of AI and Robotics, Scuola Superiore Sant'Anna, Pisa, Italy.