The eclectic approach is particularly useful when explaining the causes of mental disorders as research has suggested that there isn't just one root cause.
Diathesis Stress Model- Schizophrenia
- This suggests that individuals have a biological predisposition to schizophrenia but an environmental stressor (family dysfunction, cannabis, extreme stress) is needed to trigger the symptoms
- Supported by abnormal brain structures--> people can go their whole life with enlarged ventricles but never develop schizophrenia
Depression
- Concordance rates are 46% MZ for unipolar suggesting there are other factors other than genetics contributing to the cause of depression e.g. observational learning, peer pressure, APD
- Supported by the fact that antidepressant medication that works by increasing synaptic activity of the neurotransmitters serotonin and noradrenaline, have only around 65% efficacy
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