Parallel Effects of Schizophrenia and N-methyl-D-aspartate (NMDA) Antagonism

"For healthy volunteer arm of study, NMDA antagonist ketamine will be administered. 0.23 mg/kg over 1 minute, followed by 0.58 mg/kg/hour for 30 minutes, followed by 0.29 mg/kg/hour for 50 minutes.~No drug administration for patients with schizophrenia"