genetic factors A03

Question 1

what may explain schizophrenia running through families better than genetics?

Answer 1

common-rearing patterns = the way someone has been brought up.

Question 2

give an example of where common rearing patterns have been seen to trigger schizophrenia instead of genetics?

Answer 2

EE- where the negative emotional climate arouses the patient leading to stress, triggering a psychotic episode.

Question 3

what does Joseph argue?

Answer 3

he argues that the greater concordance rate of 40.4% for MZ twins is due to environmental factors not genetics.

Question 4

why did Joseph argue that the greater concordance rate of sz in MZ twins is due to the environment and not genetics?

Answer 4

because he recognises that MZ twins are treated more similarly than DZ twins- they encounter similar environments and experience identity confusion.