Anorexia nervosa

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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
Anorexia nervosaBy Mr Daniel HanssonAnorexia 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 weightEmotional symptoms: Extremely fearful of gaining weight or being fat, even the person is already underweightCognitive symptoms: Has a distorted view of body shape and weightSomatic symptoms: A female that misses three menstrual cycles in a rowPrevalence
  • 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
  • Etiology
  • Biological
  • Cognitive
  • Sociocultural
  • Biological
  • Genes
  • Appetite and weight regulation imbalance in hypothalamus (e.g. the hormone Leptin)
  • Neurotransmitters, e.g. serotonin
  • E.g. Mazzeo & Bulik (2009)Cognitive
  • Attentional biases and cognitive styles that distort reality/body image
  • E.g. Southgate et al. (2008)Sociocultural
  • Media exposure, social learning
  • E.g. Becker et al. (1995)Evaluation+Can be used for therapy+Supporting research-Methodological problems with research-Simplistic: Each perspective emphasizes one factorConclusion
  • An interactionistic explanation of anorexia nervosa is preferable, e.g. the diathesis-stress model or the biopsychosocial model
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