Cognitive Behavioral Model Of Bulimia Nervosa (2003)
Bulimia nervosa is an eating disorder characterized by binge eating followed by purging. Among young women the point prevalence of bulimia is about 1%. This is a cognitive behavioural model of bulimia nervosa, and forms part of the transdiagnostic model of eating disorders.
Anorexia nervosa is characterised by:
- A restriction of energy intake relative to requirements leading to significantly low body weight
- Intense fear of gaining weight or becoming fat, or persistent behaviour that interferes with weight gain
- Disturbances in the way body shape and weight is experienced, and/or undue influence of body weight or shape on self-evaluation
(American Psychiatric Association, 2013).
Fairburn, Cooper & Shafran (2003) argue that over-evaluation of eating, shape and weight, and their control is central to the maintenance of anorexia nervosa. They propose that this cognitive process drives dieting and weight control behaviour which results in ‘starvation syndrome’ and further cognitive changes. Their model of anorexia nervosa presented here describes the maintenance of both a ‘restricting type’ and a ‘binge-eating / purging type’. In their extended transdiagnostic theory of eating disorders (of which the present maintaining processes form a part) the authors identify a number of additional maintenance mechanisms which operate in some cases of anorexia nervosa. These include:
- Clinical perfectionism
- Core low self-esteem (persistent and pervasive negative self-beliefs that are viewed as part of the individual’s self-identity)
- Mood intolerance (difficulty coping with strong mood states)
- Interpersonal difficulties
One interesting characteristic of the full transdiagnostic model is that “The patient’s specific eating disorder diagnosis is not of relevance to the treatment. Rather, its content is dictated by the particular psychological features present and the processes that appear to be maintaining them”.
This is a Psychology Tools information handout. Suggested uses include:
- Client handout – use as a psychoeducation resource
- Discussion point – use to provoke a discussion and explore client beliefs
- Therapist learning tool – improve your familiarity with a psychological construct
- Teaching resource – use as a learning tool during training
- Fairburn, C. G., Cooper, Z., Shafran, R. (2003). Cognitive behaviour therapy for eating disorders: a “transdiagnostic” theory and treatment. Behaviour Research and Therapy, 41, 509-528.
- Fairburn, C. G., Marcus, M. D., & Wilson, G. T. (1993). Cognitive-behavioral therapy for binge eating and bulimia nervosa: a comprehensive treatment manual. In C. G. Fairburn, & G. T. Wilson (Eds.), Binge eating: nature, assessment and treatment (pp. 361–404). New York: Guilford Press.