Biological explanations of depression 0.0 / 5 ? PsychologyDepressionA2/A-levelAQA Created by: RoisinCreated on: 12-03-16 11:22 What do twin studies show? MZ twins share genes and the environment so if MZ concordance rates are high, it suggests a genetic cause 1 of 7 What do adoption studies do? Separate environmental factors from genetic factors 2 of 7 What does a lack of 100% concordance in MZ twins show? The environment does have an impact but genes have a larger influence 3 of 7 What does Kety et al's permissive amine theory suggest? Serotonin controls fluctuations of noradrenaline 4 of 7 How do SSRIs treat depression? Inhibit the reuptake of serotonin at the presynaptic neuron 5 of 7 What was Kennett et al's explanation of the time delay of treatment? The drugs work by changing the brain structure to make the neurons more sensitive 6 of 7 What does the diathesis stress model suggest? You only inherit a vulnerability to depression and only develop it if you experience significant life stressors 7 of 7
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