1. Research Imaging Centre, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada2Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
2. Research Imaging Centre, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
3. Research Imaging Centre, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada3Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
4. Research Imaging Centre, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada2Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada3Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
5. Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada4Frederick W. Thompson Anxiety Disorders Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
6. Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada