Biological explanation

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1. What was the response of patients who were treated with a dual serotonin-nor-adrenaline-re-uptake inhibitor compared to those treated with a placebo?

  • Negative
  • Positive
  • No significant difference
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2. What percentage of the population have depression

  • 12%
  • 10%
  • 20%

3. What two mental disorders did Keller look at when studying co-morbidity?

  • Depression and G.A.D
  • Depression and bi-polar
  • Depression and schitzophrenia

4. Why isn't the link between serotonin and depression straight forward?

  • Lowering serotonin levels results in depression although it doesn't induce depression in all people
  • Serotonin levels can fluctuate but the individual still has depresison

5. How do drugs confirm link between nor-adrenaline and depression?

  • Drugs that lower nor-adrenaline bring about depressive states while those that increase nor-adrenaline show anti-depressant effects
  • Relieve depressive symptoms

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