Overview Brain Imaging: Cocaine Effects & Medication Development - 5 Status: Withdrawn Trial end date: 1995-12-30 Target enrollment: 0 Participant gender: All Summary The purpose of this study is to define temporal profile of brain activation (rCBF) using Xenon-SPECT and O 15-PET. Phase: Phase 4Accepts Healthy Volunteers? No Details Lead Sponsor: National Institute on Drug Abuse (NIDA)New York State Psychiatric InstituteCollaborators: National Institute on Drug Abuse (NIDA)New York State Psychiatric InstituteTreatments: Cocaine Criteria Please contact site for information.