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1. The high amounts of the COMT gene is linked to a decrease in OCD,why?

  • increases dopamine
  • because it terminates the action of dopamine which can cause the obsession through overactivity
  • decreases serotonin
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2. give an example of physiological evidence to support OCD being biological?

  • PET scan showed that people with OCD have an increased metabolism of glucose in the OFC loop of the brain
  • a decrease in glucose metablolism in the brain when experiencing ocd

3. which researcher was the psychodynamic approach based upon?

  • Freud
  • bandura
  • johnson

4. what did freuds theory suggest about ocd

  • that it is learnt from a young age when a fixation occurs
  • that it is learnt during childhood as a result of too much emphasis on cleaning

5. do antidepressants increase or decrease serotonin levels?

  • increase which reduces the anxiety which stimulates an obsession
  • decrease which reduces the anxiety associated with an obsession


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