Parameters of self-administration of cocaine in rats under a progressive-ratio schedule
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Cited by (191)
Animal models
2023, Substance Use and Addiction Research: Methodology, Mechanisms, and TherapeuticsRestriction of dietary protein in rats increases progressive-ratio motivation for protein
2022, Physiology and BehaviorOptogenetic modulation of glutamatergic afferents from the ventral subiculum to the nucleus accumbens: Effects on dopamine function, response vigor and locomotor activity
2022, Behavioural Brain ResearchCitation Excerpt :Once the response was learned, the ratio schedule was changed across four daily sessions from FR3, FR5, to progressive ratio (PR) 2 then PR3. After the PR3 session, rats were switched to an exponential PR schedule where sugar pellets could be earned according to the following number of lever presses: 3, 6, 10, 15, 20, 25, 32, 40, 50, 62, 77, 95, 118, 145 [4,17]; modified from [55]. From this point onward, subjects performed the PR task every 2–3 d. Rats were placed in the testing box 200 s before the start of the session.
Methodological and analytical issues of progressive ratio schedules: Definition and scaling of breakpoint
2021, Journal of Neuroscience MethodsVarenicline rescues nicotine-induced decrease in motivation for sucrose reinforcement
2021, Behavioural Brain Research
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