Peter Williamson

P.C. Williamson




  • Tanna Schulich Chair in Neuroscience and Mental Health
  • Professor, Department of Psychiatry, University of Western Ontario


Dr. Williamson holds the Tanna Schulich Chair in Neuroscience and Mental Health and is a professor in the Department of Psychiatry at the University of Western Ontario with cross-appointments at the Lawson Health Research Institute and the Robarts Research Institute. After completing his research training at the University of Toronto, he established the Neuropsychiatry Research Group which was the first in the world to measure glutamatergic metabolites in schizophrenia with magnetic resonance spectroscopy in collaboration with Dr. Dick Drost, Dr. Ravi Menon, and Dr. Jean Théberge. The group has grown to include vertically integrated research programs in schizophrenia, posttraumatic stress disorders, mood and anxiety disorders and autism.

He is the author of Mind, Brain, and Schizophrenia published by Oxford University Press in 2006 which was referred to by the New England Journal of Medicine as 'compulsory reading for clinicians' and is currently writing The Human Illnesses: Neuropsychiatric Disorders and the Nature of the Human Brain with Dr. John Allman, an evolutionary biologist at the California Institute of Technology, for Oxford University Press. He has published more than 100 peer-reviewed and invited papers in journals such as the Archives of General Psychiatry and the American Journal of Psychiatry supported by grants from the Canadian Institutes of Health Research, the National Institute of Mental Health in the United States and several other agencies. He is past Chair of the Behavioural Sciences B Committee at the Canadian Institutes of Health Research and has served at the Centre for Scientific Review, National Institute of Health.

The Neuropsychiatry Group currently collaborates with the group at the Washington University School of Medicine in St. Louis, one of the leaders in this field, and groups around the world through the 1000 Connectomes Project aimed at understanding basic brain networks involved in cognitive processing and neuropsychiatric disorders. Dr. Williamson is the recipient of numerous awards including the first J.M. Cleghorn Award for Excellence and Leadership in Clinical Research given by the Canadian Psychiatric Association and a Distinguished Fellowship from the American Psychiatric Association.

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