Which brain abnormality is common among people with schizophrenia, compared to average?
a. Smaller neurons and fewer synapses in the prefrontal cortex
b. Slower conduction of action potentials in the amygdala and hippocampus
c. Lower concentrations of the neurotransmitter dopamine in several brain areas
d. Smaller ventricles in the two cerebral hemispheres
a
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One day, Betty felt lethargic, hopelessly sad, fatigued, and had no interest in anything. A few days later she was feeling extremely euphoric and powerful, engaged in risky sexual exploits, and spent money irresponsibly. Betty could be diagnosed with:
a. major depressive disorder b. bipolar disorder c. persistent depressive disorder d. schizophrenia
Zarina thinks she can talk to spirits that no one else can see. She sometimes channels the spirits so they can talk with living people. Zarina
a. is suffering from dissociative identity disorder. b. is suffering from paranoid schizophrenia. c. is showing behavior that is both personally distressing and maladaptive. d. may be doing something normal, depending on her cultural background and beliefs.