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
- harm avoidance strategy
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