Biological explanations of depression

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  • Created by: Roisin
  • Created on: 12-03-16 11:22

1. What does the diathesis stress model suggest?

  • Depression is only determined based on the environment
  • You only inherit a vulnerability to depression and only develop it if you experience significant life stressors
  • If you have the gene for depression, you will definitely develop it
  • Depression is only based on genes
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2. What does a lack of 100% concordance in MZ twins show?

  • The environment does have an impact but genes have a larger influence
  • The environment does not have an impact
  • The environment has an impact and has a larger influence than genes
  • Gender has an impact

3. How do SSRIs treat depression?

  • Cause the reuptake of serotonin at the postsynaptic neuron
  • Inhibit the reuptake of serotonin at the presynaptic neuron
  • Cause the reuptake of serotonin at the presynaptic neuron
  • Inhibit the reuptake of serotonin at the postsynaptic neuron

4. What do twin studies show?

  • MZ twins share genes and the environment so if MZ concordance rates are high, it suggests an environmental impact
  • MZ twins share genes and the environment so if MZ concordance rates are high, it suggests a genetic cause
  • MZ twins share genes and the environment so if MZ concordance rates are low, it suggest a genetic cause
  • MZ twins only share the environment so if MZ concordance rates are high, it suggests a genetic cause

5. What does Kety et al's permissive amine theory suggest?

  • Noradrenaline controls fluctuations of serotonin
  • Serotonin controls fluctuations of noradrenaline
  • Serotonin has no effect on depression
  • Noradrenaline has no effect on depression

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