EXPLANATIONS OF OCD

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1. give the 3 main psychological explanations of ocd?

  • behavioural, cognitive, psychodynamic
  • behavioural, psychological,cognitive
  • develpomental, cognitive, psychodynamic
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2. 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

3. give a strategy which has developed as an evolutionary adapatation

  • hoarding
  • harm avoidance strategy
  • cleaning

4. what did a study on 343 family and relatives show?

  • that all relatives also had ocd
  • that 80 of the first degree relatives also had ocd
  • that there was no link between relaives and ocd patients

5. what concordance rates were found between twins with OCD?

  • 40% concordance rates
  • 87% concordance between MZ twins only 13% environmental
  • 96% DZ twins with only 4% environmental

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