PSYCH257 Lecture : Abnormal Psychology 2nd CDN edition Chapter 8
16 Oct 2011
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Bulimia nervosa: out-of-control eating binges followed by self-induced vomiting, laxatives, purging. Anorexia nervosa: eat nothing beyond minimal amounts of food. Chief characteristic: all-encompassing drive to be thin; high death rate due to disorder, suicide. Increase in rate of disorders is culturally specific; eg. us, canada; strongest cause is sociocultural. Eating large amounts of food more than normal (usu. junk food); out of control eating. Compensate with purging techniques (vomit, laxative, diuretics, excessive exercise,fasting) Purging type: vomit/laxative etc, usu. younger, comorbidity w/ depression; non purging: exercise etc. Medical consequences: salivary gland enlargement due to repeated vomiting -> chubby face. Eroded dental enamel, upset chemical balance of bodily fluid (eg. electrolye imbalance) Assoc"d psych disorders: bulimics usu. present w/ anxiety, mood disorders; eg. 75% had anxiety disorder. Related to other behaviours suggesting poor impulse control: smoking, alcoholism, drug use. Bulimia: 10% w/n normal weight; usu. secretive of bulimic symptoms; ashamed of lack of control.
