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Psychology 2310A/B
Rod Martin

Eating Disorders DSM-IV: Eating Disorders • Anorexia Nervosa: characterized by the pursuit of thinness to dangerously low weight levels • Bulimia Nervosa: characterized by a binge-purge syndrome in people who are generally in the normal weight range DSM-5: Feeding and Eating Disorders • Pica: characterized by an appetite for substances largely non-nutritive, such as ice, clay, chalk, dirt, or sand • Avoidant/Restrictive Food Intake Disorder: Individuals who meet the criteria forARFID have developed some type of problem with eating. Difficulty digesting certain foods, avoiding certain colors or textures of food, eating only very small portions, having no appetite, or being afraid to eat after a frightening episode of choking or vomiting. • Anorexia Nervosa • Bulimia Nervosa • Binge-Eating Disorder: characterized by binge eating without subsequent purging episodes • Rumination Disorder: characterized by effortless regurgitation of most meals following consumption Anorexia Nervosa (DSM-IV) • Refusal to maintain minimally normal body weight for one’s age and height • Intense fear of gaining weight or being fat • Disturbance in body image • Amenorrhea in women past puberty • Subtypes: o Restricting Type o Binge eating / Purging Type Anorexia –Associated Features • Depressive symptoms • Obsessive-compulsive features • Low self-esteem • Medical complications o Anemia, dehydration, low metabolism rate o Electrolyte imbalance, endocrine abnormalities o EEG abnormalities o Erosion of dental enamel o Liver damage, cardiovascular problems o Osteoporosis Age, Culture, Gender • > 90% female • Average age of onset = 17 • Rarely occurs after age 40 • Rarely begins before puberty • Far more prevalent in industrialized societies Prevalence • 0.5% - 1% of adolescent, young adult females Course • Onset often stress-related • Variable course – single episode; intermittent; chronic • Often requires hospitalization • Mortality rate > 10% in those requiring hospitalization Anorexia vs. Bulimia • Anorexia o Deny family conflict o Emotionally over controlled, shy o Less sexually experienced o Less prone to obesity o More introverted o Mistrust of others o Obsessive-compulsive, perfectionistic • Bulimia o Exaggerate family conflict o Emotionally labile and impulsive o More sexually experienced o Family tendency to obesity o
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