L11 - Eating Disorders 2 Flashcards

1
Q

What are individual risk factors?

A
  • Negative body image
  • Internalisation of thin idea
  • Personality factors
  • Neurocognitive impairments
  • Dieting
  • Negative emotionally
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2
Q

What was a study about negative body image and internalisation of the thin idea?

A
  • 57 Undergrad women and 33 undergrad men
  • Ppts completed a questionnaire of abnormal eating behaviours
  • Rated their current appearance, ideal appearance, what they thought was most attractive to other sex, and the other sex they thought were most attractive
  • Those with high abnormal eating had a spread out scale whereas those with low abnormal eating had a less spread scale
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3
Q

What are personality factors in Eds?

A
  • Characterised by high-levels of perfectionism, which endures after recovery and appears to be familial
  • Potential mechanisms include self-validation, rumination, and negative affect and escape when unmet high standards
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4
Q

What are the limitations of perfectionism and Eds?

A
  • Most studies cross-sectional and do not have long term follow-ups, recruitment from treatment settings only
  • Limits generalisability of findings and understanding of causal relationships
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5
Q

What are the neurocognitive factors?

A
  • AN is strongly associated with Obsessive-compulsive thinking style, perfectionism and difficulties with social communication
  • Difficulties may be an intermediate phenotype triggers by a specific neurocognitive profile
  • Adults with AN show poor set-shifting and weak central coherence
  • Weight restored individuals show intermediate and attenuated profile, unaffected relatives show similar profile, suggesting genetic component
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6
Q

What was the study looking whether children and adolescents with AN experience the same cognitive processing profile?

A
  • Looked at ppts with anorexia nervosa and controls
  • Neuropsych tests including IQ, Set-shifting, Central Coherence and Global Processing
  • Self-report questionnaires including autism quotient, OCD symptoms
  • The AN and control groups did not differ in IQ
  • AN group displayed significantly more perseverative errors on WCST and lower style and central coherence scores on the ROCFT relative to controls
  • Suggest inflexible thinking style, stronger attention to detail and poorer global integration
  • Cog processing difficulties could be underlying trait for AN
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7
Q

What are family influences in ED?

A
  • Individuals with AN report that family dysfunction contributed to the development of their ED
  • Parents beliefs about the desirability of thinness, dieting and good physical appearance
  • Criticism of child’s appearance and weight strong predictor of BN symptoms
  • Has led to recommendations for family therapy approaches
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8
Q

What are media influences?

A
  • Body dimensions of models have become thinner over last few decades
  • Influence of social media on body image/satisfaction
  • Diet/weight normative content is increasing in media
  • As women’s weight has increased over the decades, playboy and miss America have gotten thinner and thinner
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9
Q

What are peer influences?

A
  • Girls who engaged more frequently in social media photo activities reported greater overvaluation of shape and weight, more body dissatisfaction and more dietary constraint
  • Photo investment and manipulation and unique predictor of overvaluation of shape and weight and dietary restraint
  • Relationship between social media and body related/eating concerns may be bi-directional and mutually reinforcing: those who have more body-related/eating concerns are more drawn to these appearance-related activities AND engagement in appearance-focused activities contributes to persistence of body-related/eating concerns
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10
Q

What was a study looking at Eating behaviours and attitudes following prolonged exposure to tv among Fiji Adolescent girls?

A
  • Attitudes to body image changed drastically with the coming of TV in 1995 - American Teenage programmes
  • Within 3 years, the no. of girls engaged in purging behaviours rose to 11% and a sig increase in scores on the EAT-26 scale
  • Extensive qualitative research indicated a causal link
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11
Q

DO eating disorders only occur within specific cultures?

A
  • Historical survey and meta-analysis conducted
  • Found that BN only occurs within specific cultures but not AN - fits in with stronger genetic basis of AN
  • Heritability estimates for BN show greater variability cross-culturally than AN
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12
Q

What are common treatments for AN?

A
  • Emergency procedures to restore weight
  • Antidepressants or other medications
  • Family therapy
  • CBT
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13
Q

What are common treatments for BN?

A
  • Antidepressants or other medications
  • CBT
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14
Q

What are targets for CBT?

A
  • Encourage healthy eating and reaching healthy body weight
  • Create a personalised treatment based on processes that appear to maintain the eating problem
  • Includes self-monitoring of the dietary intake and associated thoughts and feelings
  • Cover nutrition, cog restructuring, mood regulation, social skills, body image concerns, self-esteem and relapse prevention
  • Enhance self-efficacy
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15
Q

What are family-based treatment?

A
  • Specific treatment for ED that involve the full family
  • Parents/carers empowered to support their child’s recovery
  • No blame: ED is seen as separate from the patient and externalised
  • Importance of early intervention
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16
Q

What is obesity?

A
  • Defined by BMI
  • Major public health concern: high cholesterol, hypertension, diabetes, heart disease, arthritis, cancer
  • Obesity rates are increasing and almost 25% of adults are classified as obese
17
Q

How is obesity a disorder?

A
  • Central problem is habit of overeating
  • Food addiction
  • Idea of it being a brain disorder is controversial
  • Increasing acceptance that key brain areas involved in motivation to eat, as well as those involved in reward processing and inhibitory control
18
Q

What are risk and causal factors for obesity?

A
  • Genetic influences
  • Neurotransmitters and hormones
  • Socio-cultural influences
  • Family influences
  • Stress and comfort food?
19
Q

How does the Set point theory affect obesity?

A

In obesity there is a decreased sensitivity to leptin, resulting in an inability to detect satiety despite high energy stores

20
Q

What are family behaviour patterns in Obesity

A
  • High-fat, high-calorie diet
  • Eating to alleviate distress to show love
  • Overfeeding
  • Socially contagious obesity
21
Q

What has stress and comfort food done for obesity?

A

Stimuli, conditions and cues that trigger = watching TV/movies, attending parties, becoming anxious, angry or bored

22
Q

What are treatments for obesity?

A
  • Lifestyle modifications: exercise/eating patterns
  • Medication: antidepressants and appetite suppressants
  • Bariatric surgery: Long-term reduce stomach capacity
  • Also prevention