biological approach : genetic explanation

Question 1

what does the genetic explanation suggest OCD is caused by

Answer 1

genes are involved in individual vulnerability to OCD

this means you may inherit a gene which makes you more likely to experience obsessions, complusions or very high levels anxiety

Question 2

lewis - supporting evidence in family studies

Answer 2

lewis examined patients with ocd and found that 37% of the patients with OCD had parents with OCD

and 21% had siblings who suffered from OCD

this suggests that there is a gene causing vulnerability to OCD