University of Washington Institute for Neuroengineering, University of Washington, Seattle, WA, USA.|Montreal Neurological Institute, McGill University, Montreal, QC, Canada.|Groupe de recherche sur le système nerveux central, Département de neurosciences, Université de Montreal, Montreal, QC, Canada.|University of Washington Institute for Neuroengineering, University of Washington, Seattle, WA, USA.|University of Washington Institute for Neuroengineering, University of Washington, Seattle, WA, USA.