PSYCH 509 Lecture Notes - Lecture 20: Female Sexual Arousal Disorder, Etiology, Voyeurism

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One page has slim models, and the next page has food: the role of dieting in the binge-purge cycle. On diet -> encounters frustration -> binge + initial relief at start of. Early in the disorder binge -> feels self-disgust at end of binge -> purging -> partial relief of self- disgust (reinforces purging behavior) Later in the disorder (after repeated binge-purge cycles) and suicidal thoughts. Increasing realization that life is totally out of control -> depression: genetic. Bulimia: 23% for mz and 9% for dz twins. Anorexia: 60% (50-70%) for mz vs. 20% for dz twins. 75% of patients with eating disorders have mood disorders. High prevalence of mood disorder in 1st degree relatives. Personality traits (e. g. , poor impulse control, perfectionism, low self-esteem): abnormal biological functioning. Hypothalamus (in anorexia, is ventromedial hypothalamus activated by brain chemicals [cck, glp] that stop eating?) Nts, esp. low serotonin, more so in bulimia. 1960s -> huge increase in emphasis on thinness: cognitive.

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