About the visits
1. Screening/intake session
This is when we confirm that this study is a good fit for you. This session involves a urine drug screen, doing questionnaires and assessments, and an hour-long medical exam by a nurse (which includes a blood draw).
2. Baseline visit
This session involves doing assessments only.
3. Brain MRI scan
This session involves an MRI scan only.
4. PET scan visit
This session involves a PET scan (having an IV placed in each arm and lying in the scanner for about 1 hour) and doing questionnaires and assessments.