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Michael Van Ameringen, MD, FRCPC, is a Professor in the Department of Psychiatry and Behavioural Neurosciences. His current research is focused on the psychopharmacology of Anxiety Disorders and comorbid Mood Disorders, Obsessive Compulsive and Related Disorders, the relationship between the gut microbiome and OCD, Social Anxiety Disorder, Generalized Anxiety Disorder and treatment resistance. Other research interests include the use of mobile mental health apps, trans-diagnostic internet-based CBT(iCBT), computer-assisted CBT for children at risk of an anxiety disorder and the treatment of ADHD with comorbidity. He has been a member of the Steering Committee for the development of the original and updated versions of the Canadian Anxiety Disorder Treatment Guidelines. As well, he was a member of the World Federation of Societies of Biological Psychiatry Task Force on Treatment Guidelines for Anxiety, Obsessive-Compulsive and Post-Traumatic Stress Disorders. He is a member of the Board of Directors and the Scientific Council of the Anxiety and Depression Association of America and is on the editorial board for the journal Depression and Anxiety. He is also on the board of directors for the International College of Obsessive Compulsive Spectrum Disorders. Dr. Van Ameringen has published widely in the area of OCD and Anxiety Disorders.

Featured Publications

  • Van Ameringen M and Pollack M (2012).  Generalized Anxiety Disorder (Oxford Psychiatry Library).  NY: Oxford University Press. 
  • Van Ameringen M, Simpson W, Patterson B, Dell’Osso B, Fineberg N, Hollanger E, Hranov L, Hranov G, Lochner C, Karamustafalioglu O, Marazziti D, Menchon JM(p), Nicolini H, Pallanti S, Stein DJ(x), Zohar J. Pharmacological Treatment Strategies in Obsessive Compulsive Disorder: A Cross-Sectional View in Nine International OCD Centres.  Journal of Psychopharmacology, 2014 doi:10.1177/0269881113517955
  • Pollack M, Van Ameringen M, Simon N, Worthington J, Hoge E, Keshaviah A, Stein M.  A Double-Blind Randomized Controlled Trial of Augmentation and Switch Strategies for Refractory Social Anxiety Disorder. American Journal of Psychiatry, 2014 Jan;171(1):44-53.
  • Van Ameringen M, Mancini C, Patterson B, and Boyle M.  Posttraumatic Stress Disorder in Canada.  CNS Neuroscience & Therapeutics, 2008;14(3):171-181.
  • Van Ameringen M, Patterson B, and Simpson W.  DSM-5 Obsessive-Compulsive and Related Disorders: Clinical Implications of New Criteria. Depression and Anxiety, 2014:00:1-7. doi:10.1002/da.22259


  • Child Psychiatrist Qualification, McMaster University, 1986
  • Psychiatry Residency, McMaster University, 1985
  • Family Medicine Residency, McMaster University, 1982
  • MD, McMaster University, 1980
  • BSc, McMaster University, 1977

Research Areas

Pharmacotherapy of anxiety disorders and attention deficit hyperactivity disorder, with a focus on comorbidity and treatment resistance.

Computer-assisted cognitive behavioural treatment of children at risk of developing an anxiety disorder.

Changes in gut microbiota in obsessive compulsive disorder; The use of mobile mental health apps in psychiatry.

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