منابع مشابه
Preference between variable-ratio and fixed-ratio schedules: local and extended relations.
Although it has repeatedly been demonstrated that pigeons, as well as other species, will often choose a variable schedule of reinforcement over an equivalent (or even richer) fixed schedule, the exact nature of that controlling relation has yet to be fully assessed. In this study pigeons were given repeated choices between concurrently available fixed-ratio and variable-ratio schedules. The fi...
متن کاملEffects of d-amphetamine on performance under several parameters of multiple fixed-ratio, fixed-interval schedules.
Simultaneous Quantitative Assessment of Morphine Tolerance and Physical Dependence. E. LEONG WAY, HORACE H. LOB AND Fu-H5IUNG SHEN 1 Effects of Analgesics and Other Drugs on Mice in Phenylquinone and Rotarod Tests. JACK PEARL, HERBERT STANDER AND DONNA B. MCKEAN 9 Effects of Halothane upon Auditory Recovery Functions in Cats. LUKE M. KITAHATA, Y05HIKUNI AMAKATA AND ROBERT GALAMBOS 14 Effects of...
متن کاملComparison of fixed-ratio and progressive-ratio schedules of maintenance of stimulant drug-reinforced responding.
The effectiveness of doses of i.v. cocaine and nomifensine in maintaining lever-press responding in rhesus monkeys was evaluated under two schedules, fixed- and progressive-ratio (FR, PR). The doses that maintained maximum rates of responding under the fixed-ratio schedule were 0.32 mg/kg per injection cocaine and 0.10 mg/kg per injection nomifensine. The fixed-ratio rates maintained by this do...
متن کاملConcurrent nonindependent fixed‐ratio schedules of alcohol self‐administration: Effects of schedule size on choice
Choice behavior was studied under concurrent nonindependent fixed-ratio fixed-ratio (nFR) schedules of reinforcement, as these schedules result in frequent changeover responses. With these schedules, responses on either operandum count toward the completion of the ratio requirements of both schedules. Five monkeys were subjects, and two pairs of liquid reinforcers were concurrently available: 1...
متن کاملDemand equations for qualitatively different foods under fixed-ratio schedules: a comparison of three data conversions.
Concurrent schedules were used to establish 6 hens' preferences for three foods. The resulting biases suggested wheat was preferred over honey-puffed and puffed wheat, and puffed wheat was the least preferred food. The hens then responded under fixed-ratio schedules for each food in 40-min (excluding reinforcer time) sessions, with the response requirement doubling each session until no reinfor...
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ژورنال
عنوان ژورنال: Psychonomic Science
سال: 1970
ISSN: 0033-3131
DOI: 10.3758/bf03332431