Break-points on a progressive ratio schedule reinforced by intravenous cocaine increase following depletion of forebrain serotonin

Cocaine Receptors on Dopamine Transporters Are Related to Self-Administration of Cocaine

Mary C. Ritz, R. J. Lamb, Steven R. Goldberg et al. · Science · 1987 · 2.2K citations

Medicine, Neuroscience, Pharmacology +14

Progressive Ratio as a Measure of Reward Strength

William Hodos · Science · 1961 · 1.1K citations

Public Health, Behavioral Sciences, Psychology +17

On the role of ascending catecholaminergic systems in intravenous self-administration of cocaine

David C. S. Roberts, Michael E. Corcoran, Hans C. Fibiger · Pharmacology Biochemistry and Behavior · 1977 · 728 citations

Medicine, Neurobiology, Neuroscience +13

Extinction and recovery of cocaine self-administration following 6-hydroxydopamine lesions of the nucleus accumbens

David C. S. Roberts, George F. Koob, P. Klonoff et al. · Pharmacology Biochemistry and Behavior · 1980 · 726 citations

Medicine, Neurobiology, Neuroscience +16

Destruction of dopamine in the nucleus accumbens selectively attenuates cocaine but not heroin self-administration in rats

Hugh O. Pettit, Aaron Ettenberg, Floyd E. Bloom et al. · Psychopharmacology · 1984 · 653 citations

Medicine, Neurobiology, Neuroscience +12