CTScan - Computerized Tomography Scan.
Delusion - Fixed, irrational ideas not shared by others and not responding to reasoned argument.
Hallucination - Perceptions that occur without any external stimulus.
Neuroleptic drugs - The standard drugs currently used to treat the symptoms of schizophrenia.
Manic depressive disorder - A periodic, recurrent mood disorder with intervening periods of complete normalcy.