Excess dopamine activity in the brains' of individuals with schizophrenia is believed to produce ______________, but not ________________
A) positive symptoms; negative symptoms
B) negative symptoms; positive symptoms
C) delusions; hallucinations
D) hallucinations; delusions
Answer: A
Rationale: The excess dopamine may be involved in producing the positive symptoms of schizophrenia, such as hallucinations and delusions, but not the negative symptoms such as flattened emotion and lack of speech.
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