1. Bioelectromagnetics Western, University of Western Ontario, Department of Nuclear Medicine & Magnetic Resonance, StJoseph's Health Centre, Lawson Research Institute, 268 Grosvenor Street, London, Ontario, N6A 4V2, Canada
2. Division of Oral Biology, School of Dentistry, St Joseph's Health Centre, Lawson Research Institute, 268 Grosvenor Street, London, Ontario, Canada
3. Department of Psychology and NeuroScience Programme, St Joseph's Health Centre, Lawson Research Institute, 268 Grosvenor Street, London, Ontario, N6A 4V2, Canada