Overview Methylphenidate Raclopride Positron Emission Tomography (PET) Test - 11 Status: Completed Trial end date: 2005-08-01 Target enrollment: Participant gender: Summary The purpose of this study is to evaluate PET methodology to study in vivo synaptic dopamine release. Phase: Phase 4 Details Lead Sponsor: National Institute on Drug Abuse (NIDA)Collaborator: New York MDRUTreatments: MethylphenidateRaclopride