Evaluation

Cards (6)

give the strengths of the genetic explanation of OCD?
NESTADT reviewed twin studies in humans
found that in 68% of MZ twins both had OCD compared to 31% in DZ twins
TTS a strong genetic component to getting ocd
briefly state 3 weaknesses to the genetic explanation of OCD?
Concordance rates
no single gene
does not explain mechanisms
State one weakness of the genetic explanation of OCD?
CONCORDANCE RATES not 100% must be some environmental influence. Therefore genetics is an insufficient explanation alone
State one weakness of the genetic explanation of OCD?
No single gene causing the disorder, many scattered across the genome, depends on environmental triggers as to whether OCD is developed
State one weakness of the genetic explanation of OCD?
Twin and family studies show the link between genes and OCD but does not explain the genetic mechanisms behind the disorder
State one weakness of the genetic explanation of OCD?
Family members often show different symptoms of OCD
If the disorder was purely inherited then all their symptoms would be the same?

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