Ocd Explanation

genes| A01 Explanations/Research| Strengths| Weaknesses| | Family and Twin Studies:Evidence for the transmitted basis of OCD comes from bend studies and evaluations of first tip comparatives. Nastadt et al. (2000) identified 80 patients with OCD and 343 of their first form relatives and compared them with 73 control patients without mental illness and 300 of their relatives. on that point was a strong familial link for the about commonalty form of this disorder. People with a first arcdegree relative with OCD (parents or siblings) had a five times great stake of having the illness themselves at some time in their lives compared with the common population.A meta-analysis of 14 mate studies of OCD, including 80 identical and 29 f treadrnal twin pairs, found that identical twins were on bonny more than twice as likely to word OCD if their twin had the disorder than were fraternal twins (Billett et al, 1998). The COMT gene:The alteration in expression of a sp ecific gene may work to OCD. This genetic alteration reduces the production of the enzyme catechol-O-methyltransferase (COMT), which helps terminate the work on of the neurotransmitters dopamine and norepinephrine. The researchers collected DNA from samples of 73 people diagnosed with OCD and 148 who had not go through any mental disorder.

The variation in the COMT genes usual sequence, inherited from both parents, occurred in nearly half(a) of the men suffering from OCD, whereas only 1 in 10 women with OCD, and about 1 in 6 of men and women who dis depended correct mental health, displayed the same genetic trait. | integrity strength of the genetic explanation is that the re is further empirical hold provided by Ra! smussen & Tsuang (1986). They found a concordance rate of 53-87% in MZ twins for OCD. This suggests that there is wider academic credibility for the ideal that genes play a significant role in the victimisation of OCD.| One weakness of the genetic explanation is the nature-nurture argument. It is...If you want to deposit a full essay, order it on our website: OrderEssay.net

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