title: Opioid self-administration contingent on physiologic parameters.
authors.affiliation: Department of Pharmacology, Cornell University Medical College, New York, NY.
authors.forename: K
authors.initials: K
authors.lastname: Grasing
authors.forename: H
authors.initials: H
authors.lastname: Szeto
mesh_terms: D000818:Animals; D004305:Dose-Response Relationship, Drug; D004567:Electrodes, Implanted; D004569:Electroencephalography; D008297:Male; D009020:Morphine / Q000494:pharmacology; D009294:Narcotics / Q000494:pharmacology*; D051381:Rats; D011919:Rats, Inbred Strains; D012054:Reinforcement, Psychology; D012646:Self Administration
chemical_list: D009294:Narcotics; D009020:Morphine