1. Département de Psychology, Université de Montréal, Montréal, Québec, Canada.
2. Hôpital Ste. Justine, Montréal, Québec, Canada.
3. Laboratory of Neuroimaging, University of California–Los Angeles, Los Angeles, California.
4. Radiology Department, University of Pennsylvania, Philadelphia, Pennsylvania.
5. Department of Neurology, University of Southern California, Los Angeles, California.
6. Département de Kinisiologie, Université de Montréal, Montréal, Québec, Canada.