In a study of identical twins by the National Institute of Mental Health, when one twin had schizophrenia and the other did not, the schizophrenic twin always showed reduced activity in which lobe of the brain when compared to the unaffected co-twin?
a. occipital
b. frontal
c. parietal
d. medulla
Question 2
Studies using magnetic resonance imaging (MRI) have found diminished size of structures in the limbic systems of schizophrenics' brains. Why is this finding potentially important?
a. The limbic system integrates cognition and emotion.
b. The limbic system coordinates eye tracking and visual perception.
c. The limbic system is the seat of consciousness and sense of identity.
d. Abstract reasoning and problem solving are organized in the limbic system.
