1. Massachusetts Eye and Ear, Boston, Massachusetts, United States
2. Department of Mechanical Engineering, Johns Hopkins University, Baltimore, Maryland, United States
3. Center for Movement Studies, Kennedy Krieger Institute, Baltimore, Maryland, United States
4. Department of Bioengineering, Imperial College London, London, United Kingdom
5. Laboratory of Neuromotor Physiology, IRCCS Fondazione Santa Lucia, Rome, Italy
6. Department of Neuroscience, Northwestern University, Chicago, Illinois, United States
7. Department of Bioengineering, Stanford University, Stanford, California, United States
8. Rehabilitation and Neural Engineering Laboratory, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
9. Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
10. Western Institute for Neuroscience, Western University, London, Ontario, Canada
11. Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States
12. Center for the Neural Basis of Cognition, Pittsburgh, Pennsylvania, United States