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Lecture 6

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Carleton University
PSYC 1002
Kim O' Neil

Introduction to Psychology – Lecture 6 October 27, 2011 Schizophrenic Disorders • Definition: involves severe disturbances in thought that affect perceptual, social and emotional processes. The symptoms are delusions, deterioration of adaptive behaviour, hallucinations, disturbed emotion and social isolation. Subtypes of Schizophrenic Disorders TYPE SYMPTOMS Paranoid Delusion of persecution and grandeur. The patient is anxious, angry and argumentative. Disorganized Severe deterioration of adaptive behaviour, childlike behaviour, social withdrawal, emotional indifference. Catatonic Remains motionless, lack of activity, largely mute, odd expressions on the face. Undifferentiated Mixture of symptoms. • Having schizophrenia increases the risk for developing an alcohol/drug problem, physical illness (because of inactive lifestyle and side effects of medications) and suicide. Etiology of Schizophrenic Disorders (Causes) • Genetic vulnerability, neurochemical factor, structural brain abnormalities (such as enlarged brain ventricles) • Neurodevelopmental hypothesis: disruptions in the normal maturation process of the brain during pre-natal development or during birth, causing neurological damage. • Stress: high stress may serve to precipitate a schizophrenic disorder in someone who is ALREADY vulnerable. Mood Disorders • Disorders: marked by episodic emotional disturbances of varied kinds that may disrupt physical, perceptual, social and thought process: - Depressive disorder: persistent feelings of sadness, depressed mood most of the day (almost every day), loss of interest, insomnia, fatigue, loss of ability to think/concentrate, indecisiveness, feelings of worthlessness and guilt and suicidal thoughts. Very common. - Bipolar disorder: alternating periods of mania and depression, become hyperactive and may go days without sleep. Etiology of Mood Disorders (Causes) • Genetic vulnerability (heredity creates a predisposition to mood disorders by making abnormal levels of norepinephrine and serotonin. • Cogni
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