Psychology Eating Disorders Biological and Evolutionary Hypothesis

Biological explanations of eating disorders and evolutionary hypothesis

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1. Cummings did a study to show...

  • There was a relationship between production of ghrelin and hunger
  • Ob mice got fat after taking away leptin
  • Hypothalamus role in hunger
  • Satiety signals
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2. As food leaves the stomach a hormone called CCK is released. What does this do?

  • Induces satiety and can also act as a hunger suppressant (opposite of ghrelin)
  • Feeding centre
  • Makes you hungry
  • Acts like the lateral hypothalamus

3. The Embryo Protection Hypothesis states that....

  • The embryo is sick too
  • They are sick of pregnancy
  • The reason they are sick is to protect the baby - sick gets rid of any toxins in the body
  • The embryo is protecting the mother

4. What do we use to test the evolutionary hypothesis instead?

  • Common knowledge and scientific discoveries from previous studies
  • The behavioural approach
  • Knowledge, fossil evidence, teeth, digestive system of skeletons
  • History

5. Who tested taste aversion learning with wolves?

  • Freud
  • Garcia
  • Zimbardo
  • Buss

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