psyc 7 - LECTURE 7 1/29/09 BN contd IMPORTANT There can be,...

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Unformatted text preview: LECTURE 7 1/29/09 BN contd IMPORTANT There can be, and often are, dangerous physical, psychological, social and occupational consequences of partial AN and BN and non-diagnosed disordered eating behavior WARNING SIGNS of BN Bathroom after meals Mood swings unexplained disappearance of food laxative wrappers frequent tooth brushing swelling around the jaw from inflamed salivary glands (by vomiting) Excessive dental decay, blood shot eyes, Russels sign tooth marks on knuckles, etc. Prevalence 0.5-20% of females, age 12-25 0.3-1% of males Partial BN higher VERY MIS/UNDERdiagnosed Take the percentages w/grain of salt IMPRTANT Characteristics PRECEDED by dieting Contagious nature? o Hear/learn about it o Was once recommended as a viable weight loss tool Often normal weight o Maybe more fluctuated, but INC normality Often hidden Disturbances in perceptions of hunger and satiety Alcohol and drug addiction o Connection between fathers alcoholism and daughters BN Triggers numbers, counting calories, BI, hunger, comparing to ideals CAUSES Bio, psych, BIOLOGICAL Genetics o Heritability of liability of 55% o The ghrelin gene is a promising for genetic influence on BN Brain (neuroactive) chemicals o Altered in BN Sero, Norep, Dopa, CCK, CRF, insulin, ghrelin o Still abnormal in treated bulimics Sero, Dopa, CRF, insulin, ghrelin (?) o Ghrelin INC levels during fasting (of people w/BN) Higher resting ghrelin levels Therefore affects hunger/satiety levels DEC not as large in response to food ingestion When eating, there ghrelin is slower to DEC Slower re-adjusting during/after eating PSYCHOLOGICAL Personality characteristics o Low self-esteem...
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psyc 7 - LECTURE 7 1/29/09 BN contd IMPORTANT There can be,...

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