PSY240H5 Lecture Notes - Lecture 8: Bulimia Nervosa, Anorexia Nervosa, Binge Eating Disorder
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PSY240 Lecture 8
Chapter 9: Eating Disorders and Obesity
Eating Disorder= Not a healthy body mass, making an effort to make sure your weight is at an abnormal level
-Abnormality w/ the amount of calories that you are consuming.
-Maladaptive behaviours that lead to obesity
-Obesity is not an anxiety disorder.
• The two most common forms of eating disorders are
– Anorexia nervosa
– Bulimia nervosa
• In both disorders people feel
– An intense and pathological fear of becoming overweight
– A pursuit of thinness that is relentless and sometimes deadly
• Person becomes consumed by what is their “ideal” weight
• Characterized by
– A fear of gaining weight
– A refusal to maintain a normal weight
– Person is already excessively thin
• Two types of anorexia nervosa:
– Restricting type
• Avoid eating infront of others, restricting food calories, eating really slow
– Binge-eating/purging type
• Consume excessive amounts of food, then purge
• 30-50% of individuals who start w/ restrictive move to binge/purge type
– Females: Requires that postmenarcheal females stop menstruating
• One major characteristic of anorexia is that they stop menstruating.
– Males: Diminished sexual appetite and low testosterone levels
• Use urine test to measure level
• DSM Limitations
– Subtypes not useful
– Females classification
– Transition from restrictive to binge/purging = DSM is not as useful in this.
– Redundant to categorize anorexia b/c usually progresses from restrictive to binge/purging type
• The mortality rate for females with anorexia nervosa is more than twelve times higher than the mortality rate
for females aged 15–24 in the general population
-nails becoming brittle
-skin is very dry
-chronic low BP
-Vitamin deficiencies (vitamin B1 = sustaini brain function, low levels can result in neuronal death)
PSY240 Lecture 8
• Characterized by
– Frequent episodes of binge eating
– Lack of control over eating
– Recurrent inappropriate behaviour to prevent weight gain
• Taking laxatives, throwing up
– Unlike patients with anorexia nervosa, bulimic patients are typically of normal weight
• Less fatal than anorexia
• The person is maintaining a better weight than the anorexic individual
• Since the mortality rate is higher for anorexia than bulimia, a person who shows signs of bulimia but LOOKS very
thin will automatically be diagnosed as anorexic.
– (Provided that the person has stopped menstruating, low sexual appetite, etc)
Anorexia & Bulimia Nervosa
National ballet school.
-roughly 26% have anorexia
-15% have bulimia or some other type of maladaptive eating pattern.
**look at this chart
to find distinction**
Bulimia can have
another way they
lose weight is by
fasting is kinda
like restricting, but
if the person is a
rate then it’s
**TEST** = give ~3 classifications
ex. Maintaining low weight, amenorrhea, etc.
• Denial of condition
• Denial of seriousness
• Preoccupation with guilt & self-deprecation
• Shame/self deprecation
• Pain associated with inability to master the frequent impulse to binge
Eating disorder= not a healthy body mass, making an effort to make sure your weight is at an abnormal level. Abnormality w/ the amount of calories that you are consuming. The two most common forms of eating disorders are. An intense and pathological fear of becoming overweight. A pursuit of thinness that is relentless and sometimes deadly: person becomes consumed by what is their ideal weight. A refusal to maintain a normal weight. Restricting type: avoid eating infront of others, restricting food calories, eating really slow. Binge-eating/purging type: consume excessive amounts of food, then purge, 30-50% of individuals who start w/ restrictive move to binge/purge type, dsm-iv. Females: requires that postmenarcheal females stop menstruating: one major characteristic of anorexia is that they stop menstruating. Males: diminished sexual appetite and low testosterone levels: use urine test to measure level, dsm limitations. Transition from restrictive to binge/purging = dsm is not as useful in this.