chapter 9 Flashcards
(42 cards)
Feeding and eating disorders
- Anorexia Nervosa*
- Bulimia Nervosa*
- Binge-Eating Disorder*
- Pica
- Rumination Disorder
- Avoidant/Restrictive Food Intake Disorder
Eating disorders
- Eating disorders have dramatically increased as thinness has become a national obsession
- Anorexia nervosa
- Bulimia
- Binge-eating disorder
Anorexia Nervosa checklist and definition
disorder marked by the pursuit of extreme thinness and by extreme weight loss
- Individual purposely takes in too little nourishment, resulting in body weight that is very low and below that of other people of similar age and gender.
- Individual is very fearful of gaining weight, or repeatedly seeks to prevent weight gain despite low body weight.
- Individual has a distorted body perception, places inappropriate emphasis on weight or shape in judgments of herself or himself, or fails to appreciate the serious implications of her or his low weight.
Anorexia Nervosa Specifiers/Two Main Types:
Restricting-type
Binge-eating purging type
• Anorexia Nervosa Two main subtypes
- Restricting type
- Lose weight by cutting out sweets and fattening snacks, eventually eliminating nearly all food
- Show almost no variability in diet
- Binge-eating/purging type
- Lose weight by forcing themselves to vomit after meals or by abusing laxatives or diuretics
- May engage in eating binges
• Anorexia Nervosa Progression
• A normal to slightly overweight
female has been on a diet
• Escalation toward anorexia nervosa may follow a stressful event
• Most patients recover, but as many as 6 percent do not
• Anorexia Nervosa Clinical picture
key goal is to become
driving motivation is
- Key goal is becoming thin
- Driving motivation is fear
- Preoccupation with food occurs
- Thinking is distorted (see next slide)
- Usually have a low opinion of their body shape
- Tend to overestimate their actual proportions
- Hold maladaptive attitudes and misperceptions
• Anorexia Tend to think in distorted ways:
- Overestimate their actual proportions
- Hold maladaptive attitudes and misperceptions • “I must be perfect in every way”
- “I will be a better person if I deprive myself” • “I can avoid guilt by not eating”
• Anorexia Potential psychological problems and medical problems
• Potential psychological problems
• Depression, anxiety, low self-esteem, sleep disturbances
• Substanceabuse
• Obsessive-compulsive patterns and perfectionism
• Medical problems
• Amenorrhea-loss of menstruation
• Lanugo-soft feathery hair that babies have
•Lowered body temperature, low blood pressure, body swelling, reduced bone mineral density, slow heart rate
• Metabolic and electrolytei mbalances
• Skin, nail, and hair problems
2% to 6% become seriously ill and die
seriously ill, amnherio and lanugo
Annorexia Nervosa Medical problems: Caused by starvation:
- Caused by starvation:
- Amenorrhea
- Low body temperature • Low blood pressure
- Body swelling
- Reduced bone density
• Slow heart rate • Metabolic and electrolyte imbalances • Dry skin, brittle nails • Poor circulation • Lose hair • Lanugo 2% to 6% become seriously ill and die
Bulimia Nervosa checklist and definition
engage in repeated episodes of uncontrollable overeating and binges with compensatory behaviors
- Repeated binge-eating episodes.
- Repeated performance of ill-advised compensatory behaviors (e.g., forced vomiting) to prevent weight gain.
- Symptoms take place at least weekly for a period of 3 months.
- Inappropriate influence of weight and shape on appraisal (evaluation) of oneself.
• Progression Bulimia
- Normal to slightly overweight female has been on intense diet
- As with anorexia nervosa, 75 to 90 percent of bulimia nervosa cases occur in females
- Begins in adolescence or young adulthood, lasts for years with periodic let-ups
- Weight fluctuates but often stays within normal range
• Binges
• Episodes of uncontrollable eating during which a person
ingests a very large quantity of food
• May involve 1 to 30 episodes per week and 2,000 to 3,400 calories per episode
• Often carried out in secret, usually with sweet, high-calorie, soft-texture foods
• Usually preceded by great tension, which is relieved by eating
• Followed by extreme self-blame, shame, guilt, depression, and weight gain fear
-ingest a lot of high calorie food in secret to relieve tension and feels guilty
• Compensatory behaviors Bulimia
try to compensate for and undo binge effects
• Disorder is also characterized by inappropriate compensatory
behaviors
• Vomiting
• Laxative or diuretics use
• Compensatory behaviors effectiveness • Some temporary positive effects
• Caloric bingeing effects not undone- only loose half of calories
Bulimia Nervosa Versus Anorexia Nervosa
similarities
- Similarities
- Distorted body perception
- Fear of becoming obese
- Preoccupation with food, weight, and appearance
- Disturbed eating attitudes
- Feelings of anxiety, depression, obsessiveness, and perfectionism
- Heightened risk of suicide attempts and fatalities
• Differences: Bulimia
• More concern about pleasing others • Tend to be more sexually experienced • Mood swings, frustration and boredom, and impulsivity more likely • Dental problems more likely • Amenorrhea less likely
Body Dissatisfaction is the single
- Body dissatisfaction is the single most powerful contributor to dieting and to the development of eating disorders.
- People who evaluate their weight and shape negatively are experiencing body dissatisfaction.
- Approximately 73 percent of all girls and women are dissatisfied with their bodies, compared with 56 percent of all boys and men.
- The vast majority of dissatisfied females believe they are overweight. In contrast, half of dissatisfied males consider themselves overweight and half consider themselves underweight.
Binge-Eating Disorder
checklist
- Recurrent binge-eating episodes.
- Binge-eating episodes include at least three of these features:
• Unusually fast eating
• Absence of hunger
• Uncomfortable fullness
• Secret eating due to sense of shame
• Subsequent feelings of self-disgust, depression, or severe guilt. - Significant distress.
- Binge-eating episodes take place at least weekly over the course of 3 months.
- Absence of excessive compensatory behaviors.
Binge Eating Disorder definition
Not the same drive to
Repeated eating binges during which people feel no control over their eating and do not engage in inappropriate compensatory behavior
• Found in 2 to 7 percent of the population
• At least 64 percent are female
• Has a later age of onset
• As a result of their frequent binges, half become overweight or even obese
• Many shared features with bulimia nervosa or anorexia nervosa, but not the same drive to thinness
What Causes Eating Disorders? (part 1)
- Most theorists and researchers use a multidimensional risk perspective
- Several key factors place individuals at risk
- More factors = greater likelihood of developing a disorder
- Leading factors
- Psychodynamic
- Cognitive-behavioral
- Biological
- Societalpressures
- Family environment
- Multicultural
• Psychodynamic factors:
ego deficiencies
- Bruch: Psychodynamic theory of eating disorders
- Disturbed mother–child interactions lead to serious child ego deficiencies and severe perceptual disturbances
- Children of ineffective parents(fail to attend child needs) become confused adults who are unaware of their internal needs
- People with eating disorders inaccurately perceive internal cues (alexithymic) and are more likely to worry about how they are viewed by others
• Cognitive-behavioral factors
• Bruch: Several cognitive factors, such as improper labeling of
internal sensations and needs, contribute to eating disorders
• Little control over life may result in excess control of body size
• This contributes to a broad cognitive distortion that lies at the center of disordered eating—for example, negative self- judgment based on body shape and weight
• Depression
- Helps set the stage for eating disorders
- Many more people with eating disorders are diagnosed with major depressive disorders than in the normal population
- Close relatives with eating disorders have higher rates of depressive disorders
- Similar brain circuit abnormalities in those with eating disorders and depression
- Antidepressant drugs sometimes help persons with eating disorders
• Biological factors
- Certain genes may cause susceptibility to eating disorders
- Relatives of people with eating disorders are six times more likely to develop eating disorders themselves
- Brain circuit dysfunction linked to interconnectivity problems
- Larger and more active insula, orbitofrontal cortex, and striatum; smaller prefrontal cortex
- Abnormal activity levels of serotonin, dopamine, and glutamate