Zootherapy, or assisted pet therapy, may be used as a therapeutic tool for people suffering from different illnesses, young and old.

Ressources résidentielles Le Service des ressources résidentielles en santé mentale s'adresse aux adultes (incluant les personnes âgées) qui souffrent de troubles mentaux, qui ne peuvent vivre de façon autonom

Research at the Eating Disorders Program addresses various aspects of the phenomenology, etiology, and treatment of eating disorders in the spectrum of anorexia nervosa and bulimia nervosa.

Out-patient services are made up of interdisciplinary teams that offer assertive community treatment (ACT) and variable community follow-up (SIV for Suivi d’intensité variable)for people suffering from psychotic disorders.

The Prevention and Early Intervention Program for Psychosis (PEPP-Montréal) is a program for young people who are experiencing an untreated first episode of psychosis.

The Psychotic Disorders Program at the Douglas Institute provides services to adults aged 18 to 65 with schizophrenia or other forms of psychoses, with the exception of the Prevention and Early Intervention Program for Psychoses (PEPP-Montréal), which is designed for people aged 14 to 30.

The Bipolar Disorders Program is a superspecialized (third-line) consultation and treatment service for adults aged 18 to 65 who suffer from refractory bipolar disorders.

The Mood, Anxiety and Impulsivity Disorders Program at the Douglas Institute provides care to people aged 18 to 65 years with a mood disorder such as Bipolar disorders or Depressive and suicide disorders.

Outpatient clinics for children 18 and undre include the Pervasive Developmental Disorders (PDD) Diagnostic Clinic, the Depressive Disorders Clinic and the Child Psychiatry Outpatient Clinic.

The Intensive Intervention Program provides diagnostic and super specialized services in mental health to youth aged 13 to 17 years who do not adequately respond to treatment.