Imaging studies indicate that greater consumption of cocaine produces
a. increased activation of the orbitofrontal cortex.
b. increased blood flow in the prefrontal cortex.
c. increased blood flow in the anterior cingulate cortex.
d. decreased activation of the medial prefrontal cortex.
e. decreased dopamine production in the nucleus accumbens.
Answer: d. decreased activation of the medial prefrontal cortex.
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