Centre intégré universitaire de santé et de services sociaux de l’Ouest-de-l’Île-de-Montréal
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Michel Perreault, PhD

Researcher, Douglas Institute
Associate Professor, Department of Psychiatry, McGill University
Affiliated Professor, Department of Psychology, Université du Québec à Montréal
Affiliated Professor, Faculty of medicine, Department of Community health science, Université de Sherbrooke

Areas of expertise
Program and treatment evaluation in the domains of mental health and addiction, with a particular interest for the evaluation of the perspectives of clientele; Development, implementation and evaluation of training programs for staff and peer helpers in addiction and mental health.

Only 40% of persons having a mental health problem receive treatment. This situation is often attributed to difficulty in terms of access, and it becomes even more complicated for persons having concurrent mental health and substance use disorders. These individuals must navigate services among various networks that are often developed in parallel and which present numerous flaws in terms of their integration.

According to a large American study (Régier, 1990), nearly a third of persons with a diagnosed mental health problem will also face a problem related to alcoholism or substance abuse later in life. This is double the number that is observed for persons not having a mental health problem. It is therefore very important that services currently offered be better adapted for this particular population.

Michel Perreault, PhD, has been working as a researcher at the Douglas Institute since 1995, conducting research to evaluate with the aim of improving services and treatments in psychiatry. He is a member of the Groupe de recherche et intervention sur les substances psychoactives-Québec (RISQ) and an associate researcher at the Centre de réadaptation en dépendance de Montréal – Institut universitaire (CRDM-IU).

Working within a clinical environment, Michel Perreault and his team develop projects involving applied research on treatments, organization and evaluation of services in psychiatry and addiction. He is particularly interested in persons having concurrent mental health and substance use disorders and the integration of the services that are intended for them. Since 2002, he is responsible for a cross-training program that aims to improve the functioning of services within a network involving services for mental health and substance use. The program has included over 2600 participants since its beginnings, and is currently being implemented in other regions.

Michel Perreault is also responsible for the evaluation of numerous treatments and programs related to substance use, some of which involve persons with an opioid dependency or users of injectable drugs. He is also interested in the evaluation of interventions led by peer helpers for this clientele and for those having anxiety disorders, in the form of self-treatment groups.

Contact information
Douglas Institute
Porteous Pavilion
Room K-3114
6875, boulevard LaSalle
Montreal (Quebec)
H4H 1R3
Phone :
514 761-6131
ext.: 2823

Fax :
514 888-4063
Research division :
  • - Psychosociale