schizophrenia neurotransmitter evaluation

Question 1

carlsson (2000)

Answer 1

ppl given amphetamines have higher dopamine release in basal ganglia than control so were more likely to experience sz symptoms

Question 2

seeman (1993)

Answer 2

reports density of receptors such as D4 are 6x greater in sz than non-sz and this sensitivity increase to neurotransmitter leads to psychotic symptoms more than dopamine excess

Question 3

depatie and lal (2001)

Answer 3

giving ppl drugs that increase dopamine production does not create sz symptoms as would be expected if excess dopamine caused sz, so it’s not the only explaination of sz

Question 4

more scientific

Answer 4

number of receptors can be checked with a scan so provides objective way to show neurotransmitters as cause of sz

Question 5

ignores individual difference

Answer 5

social situations etc. could cause sz so not a full explanation of sz symptoms cause

Question 6

internal validity

Answer 6

can establish cause and effect with how dopamine causes sz symptoms

Question 7

conclusion

Answer 7

weakness of social control and strength of predicting treatment using typical or atypical drugs