1. Robotics, Brain and Cognitive Sciences, Istituto Italiano di Tecnologia, Genova, Italy;
2. Department of Informatics, Bioengineering, Robotics and System Engineering, University of Genova, Genova, Italy;
3. Department of Biomedical Engineering, Marquette University and Medical College of Wisconsin, Milwaukee, WI, USA;
4. Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genova, Genova, Italy;
5. Ospedale Policlinico San Martino-IRCSS, Genova, Italy;
6. Feinberg School of Medicine, Northwestern University, Chicago, IL, USA;
7. Division of Civil, Mechanical and Manufacturing Innovation, National Science Foundation, Alexandria, VA, USA