Genetic Explanation of OCD 3.0 / 5 based on 1 rating ? PsychologyObsessive compulsive disordersA2/A-levelAQA Created by: Luke BartholomewCreated on: 10-06-13 17:14 Why do we develop OCD according to the genetic explanation? It is the result of a gene which you have inherited 1 of 13 What did Carey 1981 find? With identical twins there was 87% chance that if one twin developed OCD so would the other and if the twin 2 of 13 What did Pauls et al do? Interviewed first degree family members for signs of OCD 3 of 13 What did Pauls et al find? Rates of OCD in family was 10% compared to healthy controls (2%) 4 of 13 What is the average chance of developing OCD? 1-3% chance 5 of 13 Which gene did Woods 2008 state stopped mice developing trichotillomania? Hoxb8 6 of 13 What happen when a litter of mice were bred without this gene? Every mouse in the litter licked and nibbled until they were bald 7 of 13 What does this suggest? There may be specific genes for types of OCD 8 of 13 Which gene did Feng et al say caused OCD in humans? The sapap 3 gene 9 of 13 There is consistent evidence that... Genes play a role 10 of 13 Relatives also share... A similar environment so it may not be a clean measure 11 of 13 Sharing an environment with someone... With OCD may cause stress which brings on OCD 12 of 13 Why must there be other factors which play a role? Because the concordance rates are not 100% 13 of 13
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