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Anorexia nervosa

Anorexia nervosa. By Mr Daniel Hansson. Anorexia nervosa. Symptoms Prevalence Etiology Evaluation Conclusion. Symptoms (DSM-IV-TR). Behavioural symptoms: Will not maintain normal weight for their age and height, 85 % of an appropriate weight

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Anorexia nervosa

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  1. Anorexia nervosa By Mr Daniel Hansson

  2. Anorexia nervosa • Symptoms • Prevalence • Etiology • Evaluation • Conclusion

  3. Symptoms (DSM-IV-TR) Behavioural symptoms: Will not maintain normal weight for their age and height, 85 % of an appropriate weight Emotional symptoms: Extremely fearful of gaining weight or being fat, even the person is already underweight Cognitive symptoms: Has a distorted view of body shape and weight Somatic symptoms: A female that misses three menstrual cycles in a row

  4. Prevalence • Lifetime prevalence of Anorexia nervosa in females is 0.5% • 10 times more likely in females than in males • Onset age is usually between ages 14-18 • More common in western societies but is increasing in eastern societies because of globalization

  5. Etiology • Biological • Cognitive • Sociocultural

  6. Biological • Genes • Appetite and weight regulation imbalance in hypothalamus (e.g. the hormone Leptin) • Neurotransmitters, e.g. serotonin E.g. Mazzeo & Bulik (2009)

  7. Cognitive • Attentional biases and cognitive styles that distort reality/body image E.g. Southgate et al. (2008)

  8. Sociocultural • Media exposure, social learning E.g. Becker et al. (1995)

  9. Evaluation +Can be used for therapy +Supporting research -Methodological problems with research -Simplistic: Each perspective emphasizes one factor

  10. Conclusion • An interactionistic explanation of anorexia nervosa is preferable, e.g. the diathesis-stress model or the biopsychosocial model

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