9. Use of CNS medications which may affect sleep or functional brain imaging (i.e., use of sleeping pills, antidepressants or other mood stabilizers or other medications which may affect the sleep EEG)
11. Donation or loss of blood (\>400 ml) within the past month
12. Current or very recent intercurrent illnesses, painful conditions or other disorders, which in the judgement of the investigators, might invalidate the scientific goals of the study or pose undesirable difficulties or risks for the subject.
13. Hamilton Rating Scale of Depression (HRSD-17 items)\<17 unless subject is a normal control subject.
14. Pregnancy or breast feeding
15. Individuals who would be unable to undergo a magnetic resonance imaging (MRI) scan, for example, individuals who suffer from claustrophobia, or who have metal clips in their body.
16. Unable to cease taking psychoactive medications which are not part of this protocol (2-5 weeks) prior to PET scans.
17. Patients with previous history of significant adverse reactions to sertraline or sertraline-like drugs or other SSRI's such as Paxil or Prozac
18. Subjects with diagnosis of eating disorder/bulimia
Clareo Health | The Role of Dopamine Metabolism in the Antidepressant Effects of Sleep Deprivation and Sertraline in Depressed Patients