Eating Disorders Flashcards
What is the adaptation to fleeing famine hypothesis?
Proposed that abilities to ignore hunger and deny starvation helped some in starving hunter-gatherer bands
What are the types of eating disorders in DSM5?
Anorexia nervosa, bulimia nervosa, other specified feeding and eating disorder, binge eating disorder, orthorexia, obesity
What is involved in anorexia nervosa?
Restriction of energy intake. Fear of gaining weight. Disturbance in way shape is experienced
What percent below normal weight do you need to be to be anorexic?
15% below normal weight
What is amenorrhoea (symptom of anorexia)?
Absense of menstrual period
What is bulimia nervosa?
Episodes of binge eating (in 2 hours) and purging at least once a week for 3 months
What is counted in OSFED?
Atypical anorexia nervosa, bulimia nervosa of low frequency of limited duration, binge eating disorder of low frequency of limited duration, night eating syndrome
What are effective treatments for anorexia nervosa?
food, family-based interactions (but no NICE approved mthod)
What is an effective treatment for bulimia nervosa?
cognitive behavioural therapy extended
What are the risk factors of eating disorders?
Birth, childhood, adolescents,
Why is birth a risk factor?
because of obstetric complications
Why is childhood a risk factor?
Childhood obesity and anxiety and neglect
Why is adolescence a risk factor?
exercise, dieting
What are the five P’s of formulation?
Predisposing, precipitating, presenting, perpetuating, protective
What are the neurobiological abnormalities associated with eating disorders?
The insula is a vulnerable network. Lack of activity in the left hemisphere months after recovery
What are the neuropsychological processing styles?
Visual spatial processing, cognitive flexibility, central coherence, risk processing, emotion processing
VCCRE
What is visual spatial procesing?
Processing visual info.
Impaired in AN
What is cognitive flexibility?
Shift between ways of thinking.
Impaired in AN and BN
What is central coherence?
Integrate detail and global perspectives.
Impaired in AN and BN
What is risk/reward processing?
identifying risky choices
impaired in BN
What is emtion processing?
Interpret what the body is telling us
Impaired in AN
could be linked to alexithymia (lack words for feelings)
What are two treatments for eating disorders?
Cognitive remediation therapy and neurobiofeedback?
What is cognitive remediation?
Targets processes of thinking. 10 individual sessions for 45 mins twice a week
What is neurobiofeedback
meditation. real time fMRI shows changing blood flow to insula
