Collaborating Scientists

frewen_paulPaul Frewen
, PhD, C Psych
Associate Professor, Research Scientist, Department of Psychiatry, Schulich School of Medicine & Dentistry, Department of Psychology, Faculty of Social Science, School of Graduate & Postdoctoral Studies, Lawson Health Research Institute, University of Western Ontario and London Health Sciences Centre
Homewood Associate Clinical Scientist

Paul Frewen joined the departments of psychiatry and psychology at the University of Western Ontario in London, Ontario, Canada, in September 2008. He completed his doctorate in clinical psychology at Western and his post-doctoral residency at the Royal Ottawa Mental Health Centre. He is currently chair of the Traumatic Stress Section of the Canadian… [ Read full bio ]


lanius_ruthRuth Lanius, MD, PhD
Professor of Psychiatry and Director PTSD Research Unit, Western University
Harris-Woodman Chair in Mind-Body Medicine, Schulich School of Medicine and Dentistry, Western University
Homewood Associate Clinical Scientist

Ruth Lanius is the Director of the Posttraumatic Stress Disorder Research Unit at the Western University in London, Ontario. She established the Traumatic Stress Service and Workplace Program, services that specialize in the treatment and research of PTSD and related comorbid disorders. She currently holds the Harris-Woodman Chair in Mind-Body Medicine at the Schulich School of Medicine & Dentistry at the University of Western Ontario… [ Read full bio ]


James MacKillopJames MacKillop, PhD
Peter Boris Chair in Addictions Research
Director, Boris Centre for Addictions Research
Professor of Psychiatry and Behavioural Neurosciences, McMaster
Homewood Senior Scientist

James MacKillop trained as a clinical psychologist at the State University of New York at Binghamton and Brown University, and was previously a faculty member at Brown’s Center for Alcohol and Addiction Studies and at the University of Georgia. Integrating concepts and methods from psychology, economics, and neuroscience, Dr. MacKillop conducts a program of research using behavioral economics and neuroeconomics to understand alcoholism… [ Read full bio ]


Margaret McKinnon smallMargaret C. McKinnon, PhD, C Psych.
Associate Co-Chair, Research and Associate Professor, Department of Psychiatry and Behavioural Neurosciences, McMaster University
Academic Head and Psychologist, Mood Disorders Program
St. Joseph’s Healthcare in Hamilton
Homewood Research Chair in Mental Health and Trauma

Dr. McKinnon received her PhD in Psychology from the University of Toronto and subsequently completed a post-doctoral fellowship at the Rotman Research Institute. She is a psychologist in the Mood Disorders Program and Clinical Neuropsychology Service at St. Joseph’s Healthcare… [ Read full bio ]


Brian Rush, PhD
HRI Senior Scientist
Scientist Emeritus, Centre for Addiction and Mental Health

Brian worked for over 38 years as a mental health and substance use research scientist with the Centre for Addiction and Mental Health (CAMH) in Toronto and, in 2013, retired to focus on his consulting practice, VIRGO Planning and Evaluation Consultants. He retains a position of Scientist Emeritus at CAMH as well as his position as Full Professor at the University of Toronto in both the Departments of Psychiatry… [ Read full bio ]