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6. Evolutionary explanations suggest depression is:
- An honest signal of need, seeking social support
- A display of attention-seeking behaviour
- A result of our rapidly changing EEA (Enviroment of evolutionary adaptation)
7. What is the concordance rate for monozygotic twins and depression?
8. When compared to a placebo SNRI's (serotonin-noradrenaline re-uptake inhibitors) were:
- not significantly different in outcome
- more effective
- less effective
9. What percentage of first-degree relatives of probands have depression?
10. Why isn't the relationship between serotonin and depression straightforward?
- Lowering serotonin in individuals who had never had depression had not effect on mood
- Lowering serotonin in individuals who had never had depression increased mood
- In some cases high serotonin can cause depressive states