The positive symptoms of schizophrenia and other psychotic disorders are believed to result from
a. hypoactivity of the mesocortical dopamine system.
b. hypoactivity of the nigrostriatal dopamine system.
c. hypoactivity of the mesolimbic dopamine system.
d. hyperactivity of the nigrostriatal dopamine system.
e. hyperactivity of the mesolimbic dopamine system.
Answer: E
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