PSYCH 333 1nd Edition Lecture 16 Outline of Last Lecture I Schizophrenia II Genetic Causes III Environmental Causes IV Psychological Social Factors Outline of Current Lecture II Eating Disorder in the DSM 5 III Anorexia Nervosa IV Bulimia Nervosa V Binge Eating Disorder VI Biological Factors VII Cognitive Behavioral Factors Current Lecture Eating Disorder in the DSM 5 o Anorexia nervosa o Bulimia nervosa o Binge eating disorder o Eating disorder not otherwise specified Anorexia Nervosa o Restrictive behaviors weight loss o Fear of gaining weight being fat o Distorted body image or sense of body shape Perceiving that their body is much larger than what it actually is o Extremely underweight cannot be at a normal weight and have anorexia o Subtypes Restricting May consume only 400 500 calories a day Binge eating purging May eat a large meal and then excessive behaviors to compensate o Associated features Much more common in women Onset adolescence usually middle or high school These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute Comorbid with depression OCD panic phobias substance use personality disorders Differences between subtypes Binge purge more impulsivity increased suicide risk substance use and personality disorder Child like mannerisms Age inappropriate behavior Severe medical consequences Bulimia Nervosa o Recurrent Frequent bingeing Sense of loss of control when bingeing o Compensatory behaviors purging o Self esteem image unduly influenced by body shape weight o Associated features Onset adolescence early adulthood Binges typically triggered by stress emotional distress Secrecy feelings of shame disgust Comorbid with depression personality disorder anxiety disorders substance use conduct disorder suicide Medical consequences Mostly due to effects of purging History of sexual abuse Binge Eating Disorder o Frequent recurrent binges o Absence of compensatory behaviors Bingeing but no purging o Associated features Higher BMI and associated medical conditions Slightly higher prevalence in women Childhood obesity Comorbid with insomnia anxiety depression and IBS Biological Factors o Genetics AN and BN run in families risk may be non specific Higher concordance rate in MZ vs DZ twins Some of the genetic variation may be due to personality o Neurobiological Hypothalamus limited support Endogenous opioids released during starvation and many compensatory behaviors BN and BED low serotonin and feelings of satiety Dopamine reward pathways o Treatments Medications Antidepressant SSRIs Fluoxetine Prozac may help regulate mood appetite Limited efficacy Relapse when discontinued Medical treatment Treats effect of disordered eating Cognitive Behavioral Factors o Anorexia nervosa Cognitions fear of being fat distorted body perception drive for thinness body dissatisfaction Behavioral reinforcement of weight loss restricting behaviors o Bulimia nervosa Similar cognitions Role of restrictive dieting and failing
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