PS102 Lecture Notes - Lecture 20: Catatonia, Bipolar Disorder, Dissociative Disorder
Document Summary
Depression occurs when people expect that bad events will occur and they think that they can"t cope with them. Learning and environmental factor: loss of reinforcement, depression occurs, causes loss of social support, deeper depression. Environmental factors: poor parenting, many stressful experiences, failure to develop good coping skills, failure to develop positive self - concept. No external cause for ups and downs. Duration within a mood can be several months. Once called dementia praecox : latin for out of one"s mind before one"s time . Schizophrenia = split mind (not split personality. Disorganized or catatonic type: disorganized speech, disorganised or catatonic behaviour, affective flattening, alogia, avolition (negative lack of emotion or symptoms) Main biochemical explanation is dopamine hypothesis: too much in basal ganglia and too little in frontal cortex. A long standing, inflexible, maladaptive pattern of behaving and relating to others. Tend to have problems in their relationships and at work.
