PSY240H5 Lecture Notes - Lecture 8: Bulimia Nervosa, Anorexia Nervosa, Binge Eating Disorder

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Published on 16 Oct 2011
School
UTM
Department
Psychology
Course
PSY240H5
Professor
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.
Eating Disorders
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
Anorexia Nervosa
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
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
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 1524 in the general population
Anorexia=excessive thinness
-hair loss
-nails becoming brittle
-skin is very dry
-yellowish tinge
-chronic low BP
-Vitamin deficiencies (vitamin B1 = sustaini brain function, low levels can result in neuronal death)
-irregular heartbeats
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PSY240 Lecture 8
Bulimia Nervosa
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
purging and
nonpurging
another way they
lose weight is by
exercising or
rigorous fasting
fasting is kinda
like restricting, but
if the person is a
relatively healthy
rate then it’s
bulimia, not
anorexia
**TEST** = give ~3 classifications
ex. Maintaining low weight, amenorrhea, etc.
Anorexia: DENIAL
Denial of condition
Denial of seriousness
Bulimia: GUILT
Preoccupation with guilt & self-deprecation
Shame/self deprecation
Pain associated with inability to master the frequent impulse to binge
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Document Summary

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.