 Ten male normal comparison subjects will recruited, matched in mean age and ethnicity to the schizophrenic group. Absence of psychopathology will be confirmed by SCID-I, NP version. Subjects will be excluded for clinically significant unstable medical illness, history of neurological disease including head trauma with loss of consciousness 5 minutes, active substance abuse or dependence within the prior three months, any contraindication to fMRI, left handedness, color blindness, or mental retardation. Normal controls will be matched to schizophrenic subjects with regard to monthly income so that monetary rewards during the task will have comparable reinforcement value. 