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6. which researcher was the psychodynamic approach based upon?
7. give the 3 main psychological explanations of ocd?
- develpomental, cognitive, psychodynamic
- behavioural, cognitive, psychodynamic
- behavioural, psychological,cognitive
8. The high amounts of the COMT gene is linked to a decrease in OCD,why?
- because it terminates the action of dopamine which can cause the obsession through overactivity
- decreases serotonin
- increases dopamine
9. Abnormal levels of neurotransmitters can cause an increase in the likelihood of having ocd, state the two main neurotransmitters invloved?
- testosterone and serotonin
- serotinin and dopamine
- cortisol and dopamine
10. what did a study on 343 family and relatives show?
- that 80 of the first degree relatives also had ocd
- that there was no link between relaives and ocd patients
- that all relatives also had ocd
11. 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
12. give a strategy which has developed as an evolutionary adapatation
- hoarding
- harm avoidance strategy
- cleaning
13. name an alternative gene to the COMT gene and what it showed?
- the SAPAP3 gene which showed and increase in grooming with mice
- the SAPAP gene showing a decrease in mice grooming themselves
14. what did meta analysis of 14 twin studies find
- monozygotic twins were twice as likely to have ocd if their twin has it
- that there was no correlation
- 10 times as likely to develop ocd if twin has it
15. 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