From the Division of Neurology, Department of Medicine (S.S.M., D.T.S., S.E.B., M.M.), Hurvitz Brain Sciences Research Program (S.S.M., J.R., D.T.S., D.Y., W.S., S.E.B., M.M.) and LC Campbell Cognitive Neurology Research Unit (U.S., J.R., S.M.N., D.Y., W.S., S.E.B., M.M.), Sunnybrook Research Institute, Institute of Medical Science (U.S., S.E.B., M.M.), Rehabilitation Sciences Institute (D.T.S., S.E.B.), and Department of Psychiatry (S.M.N.), Faculty of Medicine, Heart and Stroke Foundation Canadian Partnership for Stroke Recovery (J.R., D.Y., W.S., S.E.B.) and Department of Anatomic Pathology (J.K.), Sunnybrook Health Sciences Centre, Department of Psychology, Faculty of Arts and Science (D.T.S.), Department of Pharmacology & Toxicity (D.Y., W.S.), Tanz Centre for Research in Neurodegenerative Diseases (E.R., P.S.G.H.), and Institute of Biomaterials and Biomedical Engineering (S.E.B.), University of Toronto, Canada; Data Science Institute and Medical School (J.K.), Lancaster University, Lancaster; and Cambridge Institute for Medical Research (P.S.G.H.), Department of Clinical Neuroscience, University of Cambridge, UK.