Using positron emission tomography, researchers have compared the activity levels in the left and right
hemispheres of manic-depressive brains and schizophrenic brains and found that activity is
a. low in the left hemisphere for both manic-depressives and schizophrenics.
b. low in the right hemisphere for both manic-depressives and schizophrenics.
c. low in the left hemisphere for manic-depressives and low in the right hemisphere for schizophrenics.
d. low in the right hemisphere for manic-depressives and low in the left hemisphere for schizophrenics.
ANSWER: c
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