genetic explanation of sz

Question 1

there is evidence from

Answer 1

family studies that sz is heritable and can be inherited genetically.

Question 2

according to the genetic hypothesis

Answer 2

sz prevelance is 1% of the population however the closer related the family member is to the schizophrenic the greater chance they have of developing the disorder. 2nd degree relative 2-6% chance. 1st degree relative 6-17% chance. MZ concordance rates are 48% and dz are 17%

Question 3

gottesman (1991) 1

Answer 3

reviewed 40 twin studies and found 48% concordance between mz twins and only 17% for dz. T/F this suggests that high concordance rates for identical twins is not due to them being treated the same increasing the validity of the genetic explanation of sz

Question 4

gottesman 2

Answer 4

reviewed family studies and found that if both parents have sz there is a 46% chance with one only 16 % T/F suggesting the risk of developing sz is far greater for someone who is more closely related to the schizophrenic increasing the validity of the genetic explanation of sz.

Question 5

:( reductionist

Answer 5

only considers the role of genetics and how they are passed on which cause sz doesn’t consider the role of nurture and social influences T/F it is too simplistic of an explanation for sz

Question 6

other theories

Answer 6

the dopamaine hypothesis