[1] Univ Hlth Network, Krembil Brain Inst, Div Brain Imaging & Behav, Toronto, ON, Canada
[2] Univ Toronto, Dept Surg, Toronto, ON, Canada
[3] Univ Toronto, Inst Med Sci, Toronto, ON, Canada
[4] Univ Calif San Francisco, Dept Anat, San Francisco, CA USA
[5] McGill Univ, Dept Anesthesia, Montreal, PQ, Canada
[6] Technion Fac Med, Rambam Hlth Care Campus, Dept Neurol, Haifa, Israel
[7] Technion Fac Med, Lab Clin Neurophysiol, Haifa, Israel
[8] Univ Calif San Francisco, Dept Neurol, San Francisco, CA USA
[9] Univ Calif San Francisco, Dept Physiol, San Francisco, CA USA
[10] Univ Hlth Network, Toronto Western Hosp, Krembil Brain Inst, Acute & Chron Pain Res, 399 Bathurst St,Room MP12-306, Toronto, ON M5T 2S8, Canada