Biological Approach to Explainining OCD

Question 1

Parts to genetic explanations

Answer 1

Candidate genes: faulty genes involved in regulating serotonin
OCD is polygenic: caused by several different genes
Different types of OCD: different origins, genetic variations

Question 2

Neural explanations

Answer 2

Role of serotonin: If low levels then can affect mood and sometimes other mental processes
Decision making systems: Some cases associated with impaired decision making, also to do with different parts of brain.