People with schizophrenia have a great deal of difficulty focusing on one item of information at a time with many of their symptoms being related to this problem with

Joe is very anxious over an upcoming exam. Consequently, his adrenal glands will probably produce ________

a) more testosterone b) less estrogen c) more cortisol d) less cortisol

Ali is in the hospital about to undergo a brain-imaging process that involves taking many X-rays from different angles aided by the use of a computer. What type of imaging technique is being used?

a) electroencephalography (EEG) b) magnetic resonance imaging (MRI) c) positron-emission tomography (PET) d) computed tomography (CT)