dopamine hypotheses - bio explanation of Sz

Question 1

what is dopamine important for?

Answer 1

functioning of several brain systems that may be implicated in Sz

Question 2

what might excess dopamine in brocas area mean?

Answer 2

asociated with speech poverty and experience of hallucinations

Question 3

Goldman Rakic?

Answer 3

identified a role for low levels of dopamine in prefrontal cortex