Sleep/Wake Cycle and Depression: An Imaging and Treatment Study

On the first night, the participant sleeps normally as we assess their melatonin through blood work. On the second night, the participant has 3 PET/MRI scans. On the third night, the participant undergoes sleep deprivation. On the fourth night, the participant sleeps normally and we assess their melatonin again through blood work. Depression scores are taken before and after the intervention.