OCD
- Created by: beccahamblin
- Created on: 04-06-18 09:40
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Biological approach to explaining OCD
a) genetic explanations -
Candidate genes - genes which make people vulnerable e.g. 5HT1-D beta gene is implicated in the efficiency of serotonin transfter across the synapse
OCD is polygenic - 230 genes
Different types of OCD - such as hoarding and religious
Evaluation:
1. Twin studies- Nestadt et al reviewed previous twin studies and found a concordance rate of 68% for MZ twins compared with 31% for DZ twins. this strongly suggests a genetic influence on OCD
2. Environmental risk factors - Cromer et al found that over half of OCD patients in their sample had experienced a traumatic event in their past and that the OCD was more severe…
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