Eating disorders Bulimia nervosa

Question 1

What is the typical onset of bulimia nervosa

Answer 1

late adolescence early adulthood

Question 2

How is bulimia nervosa defined

Answer 2

characterised by a fear of gaining weight and distorted self-image
individuals are within 10% of normal body weight

Question 3

Physiological consequences of bulimia nervosa

Answer 3

headaches
puffy cheeks
loss of dental enamel

Question 4

DSM diagnostic criteria for bulimia nervosa

Answer 4

• recurrent episodes of binge eating
• eating within 2 hours an immense amount of food and lack of control over eating
• slef-induced vomiting, laxatives, etc
• at least once a week for 3 months

Question 5

Genetic explanations for eating disorders

Answer 5

• moderate overlap of environemntal and genetic factors
• Concordance rate for MZ twins higher than DZ for anorexia nervosa
• eating disorders unlikely inherited
• biological vulnerability however is a factor

Question 6

neurobiological explanations

Answer 6

serotnin regulated hunger and appetitie
increased serotonin stimulate the medial hypothalamus= decreased food intake
AN have decreased serotonin and less control over binge eating tendnecies

Question 7

endogenous opioids

Answer 7

released during starvation to reduce pain sensations
slef starvation increases opioids and produces a state of euphoria, reinforcing the AN behaviour
in bulilmia there are low levels of opioids

Question 8

Sociocultural factors

Answer 8

culture influences peoples behaviours attitudes and thoughts
-unrealistic beauty standards displayed on public media platforms encourage comaprisons and negative slef criticism
- social learning
- peer pressure
- social comparison

Question 9

the tripartite model

Answer 9

influences from media and environmental factors meidated by internalisation of social ideals and comparisons resulting in body dissataisfaction

Question 10

treatment

Answer 10

pharmacological treatments unsuccessful
for bulimia, antidepressants and SSRI’s may work
psychological treatments: family based interventions, CBT

Question 11

explain family based therapy

Answer 11

stage 1: weight restoration
stage 2: returning control of eating to patient
stage 3: establishing healthy identity