Steven Taylor, PhD, is a clinical psychologist and Professor in the Department of Psychiatry at the University of British Columbia. He is Associate Editor of the Journal of Obsessive–Compulsive and Related Disorders and previously served as Editor of the Journal of Cognitive Psychotherapy and Associate Editor of Behaviour Research and Therapy. Dr. Taylor's research focuses on the etiology and treatment of anxiety and related disorders, conceptualized from a biopsychosocial perspective. His work has been recognized with awards from the Association for Behavioral and Cognitive Therapies, the Anxiety Disorders Association of America, and the Canadian Psychological Association, among others. He has authored over 300 scientific journal articles and book chapters and several books.

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Gordon J. G. Asmundson, PhD, is professor and research director in the Faculty of Kinesiology and Health Studies at the University of Regina, Canada, and adjunct professor of psychiatry at the University of Saskatchewan. He has published more than 110 journal articles and book chapters, as well as several books, and served as a member of the DSM-IV Text Revision Work Group for the Anxiety Disorders. An active clinical researcher and research supervisor, Dr. Asmundson has received several prestigious early career awards. His current interests include assessment and basic mechanisms of the anxiety disorders, health anxiety, and acute and chronic pain, and the association of these with disability and behavior change.

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