Schizophrenia: is a psychotic disorder characterized by major disturbances in thought, emotion, and behavior: disordered thinking in which ideas are not logically related, faulty perception and attention, flat or inappropriate affect, and bizarre disturbances in motor activity. The prevalence is high in canada due to 2 factors; immigration rates (greater stress exposure) a(cid:374)d ca(cid:374)ada"s high latitude (less sunlight a(cid:374)d redu(cid:272)ed vita(cid:373)i(cid:374) d, (cid:449)hi(cid:272)h is a pre(cid:374)atal fa(cid:272)tor i(cid:373)pli(cid:272)ated i(cid:374) the de(cid:448)"t of s(cid:272)hiz. ) Usually appears in late adolescence or early adulthood. Comorbid personality disorders (ex. avoidant, paranoid, dependent, and anti-social) are common and have implications for the course and clinical mgmt. of schiz. Familial association between schizophrenia and depression and anxiety. The symptoms involve disturbances in several major areas: thought, perception, and attention; motor behavior; affect or emotion; and life functioning. Positive symptoms are the presence of too much of a behavior that is not apparent in most people.