We are seeking healthy male participants, ages 18-40 years old, for our Schizophrenia MRI research study. The study is focusing on brain mechanisms of cognition in relation to GABA neurotransmitters. • One in-person visit, if eligible to Stanford CNI for up to 2.5 hours of study participation • 1 hour scan • 1 hour of cognitive testing • 1 hour clinical interview, if applicable • $15 per hour of study participation Potential risks/discomfort • Lying down for a long period of time You will also receive an image of your brain if requested! For more information, contact us at (650)-849-0552 or email us at brain-research@stanford.edu