Which of the following supports the notion that impairment of the prefrontal cortex is related to the negative symptoms of schizophrenia?
a. MRI studies indicate abnormalities within the temporal cortex of schizophrenics.
b. Schizophrenic patients show greater activity of the frontal cortex than do controls.
c. Schizophrenic patients do poorly on neuropsychological tests that are sensitive to damage of the prefrontal cortex.
d. MRI studies indicate abnormalities within the parietal cortex of schizophrenics.
e. Schizophrenic patients show a greater number of neurons within the gray matter of the frontal cortex.
Answer: c. Schizophrenic patients do poorly on neuropsychological tests that are sensitive to damage of the prefrontal cortex.
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