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Psychopharmacology|January 1, 1991
Differential cross-tolerance to mu and kappa opioid agonists in morphine-tolerant rats responding under a schedule of food presentationM J Picker, S S Negus, K R Powell
The Journal of Pharmacology and Experimental Therapeutics|June 17, 1998
Discriminative stimulus effects of a cocaine/heroin "speedball" combination in rhesus monkeysS S Negus, M B Gatch, N K Mello
Psychopharmacology|January 5, 2001
Effects of GABA agonists and GABA-A receptor modulators on cocaine discrimination in rhesus monkeysS S Negus, N K Mello, P A Fivel
Psychopharmacology|May 9, 2020
Effects of repeated treatment with monoamine-transporter-inhibitor antidepressants on pain-related depression of intracranial self-stimulation in ratsL P Legakis, L Karim-Nejad, S S Negus
Life Sciences|January 1, 1989
Opioid-like discriminative stimulus properties of benzomorphans in the pigeon: stereospecificity and differential substitution patternsM J Picker, S S Negus, L A Dykstra
The Journal of Pharmacology and Experimental Therapeutics|February 24, 2021
Behavioral Battery for Testing Candidate Analgesics in Mice. II. Effects of Endocannabinoid Catabolic Enzyme Inhibitors and ∆9-TetrahydrocannabinolC M Diester, A H Lichtman, S S Negus
Neuropsychopharmacology : Official Publication of the American College of Neuropsychopharmacology|April 16, 1998
Effects of mu opioid agonists alone and in combination with cocaine and D-amphetamine in rhesus monkeys trained to discriminate cocaineS S Negus, M B Gatch, N K Mello
The Journal of Pharmacology and Experimental Therapeutics|September 22, 1999
Effects of the long-acting monoamine reuptake inhibitor indatraline on cocaine self-administration in rhesus monkeysS S Negus, M R Brandt, N K Mello
Psychopharmacology|January 1, 1990
Interactions between mu and kappa opioid agonists in the rat drug discrimination procedureS S Negus, M J Picker, L A Dykstra
Psychopharmacology|October 1, 1995
Relationship between the discriminative stimulus effects and plasma concentrations of intramuscular cocaine in rhesus monkeysX Lamas, S S Negus, E Hall, et al.
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