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Smethells, John R.; Fox, Andrew T.; Andrews, Jennifer J.; Reilly, Mark P. – Journal of the Experimental Analysis of Behavior, 2012
Three experiments investigated the effects of immediate and delayed postsession feeding on progressive-ratio and variable-interval schedule performance in rats. During Experiments 1 and 2, immediate postsession feeding decreased the breakpoint, or largest completed ratio, under progressive-ratio schedules. Experiment 3 was conducted to extend the…
Descriptors: Reinforcement, Food, Animals, Operant Conditioning
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Arantes, Joana; Berg, Mark E.; Le, Dien; Grace, Randolph C. – Journal of the Experimental Analysis of Behavior, 2012
In Experiment 1, 4 pigeons were trained on a multiple chain schedule in which the initial link was a variable-interval (VI) 20-s schedule signalled by a red or green center key, and terminal links required four responses made to the left (L) and/or right (R) keys. In the REPEAT component, signalled by red keylights, only LRLR terminal-link…
Descriptors: Resistance to Change, Preferences, Animals, Reinforcement
Sokolowski, Michel B. C.; Disma, Gerald; Abramson, Charles I. – Journal of the Experimental Analysis of Behavior, 2010
An operant conditioning situation for the blow fly ("Protophormia terrae novae") is described. Individual flies are trained to enter and reenter a hole as the operant response. Only a few sessions of contingent reinforcement are required to increase response rates. When the response is no longer followed by food, the rate of entering the hole…
Descriptors: Operant Conditioning, Responses, Behavioral Science Research, Animals
Lattal, Kennon A. – Journal of the Experimental Analysis of Behavior, 2010
The experimental analysis of delay of reinforcement is considered from the perspective of three questions that seem basic not only to understanding delay of reinforcement but also, by implication, the contributions of temporal relations between events to operant behavior. The first question is whether effects of the temporal relation between…
Descriptors: Reinforcement, Operant Conditioning, Delay of Gratification, Experimental Psychology
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Kupfer, Anne; Allen, Ron; Malagodi, E. F. – Journal of the Experimental Analysis of Behavior, 2008
Adjunctive or induced behavior is generated during a variety of schedules of reinforcement. Several theoretical conceptualizations suggest that rate of reinforcement is the primary variable controlling the strength or levels of induced behavior. The operant response requirement within the schedule context has not been extensively studied as a…
Descriptors: Food, Reinforcement, Scheduling, Responses
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Burgos, Jose E. – Journal of the Experimental Analysis of Behavior, 2007
This article presents an interpretation of autoshaping, and positive and negative automaintenance, based on a neural-network model. The model makes no distinction between operant and respondent learning mechanisms, and takes into account knowledge of hippocampal and dopaminergic systems. Four simulations were run, each one using an "A-B-A" design…
Descriptors: Brain, Models, Neurological Organization, Simulation
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DeFulio, Anthony; Hackenberg, Timothy D. – Journal of the Experimental Analysis of Behavior, 2007
Two experiments examined pigeons' postponement of a signaled extinction period, or timeout (TO), from an ongoing schedule of response-dependent food delivery. A concurrent-operant procedure was used in which responses on one (food) key produced food according to a variable-interval schedule and responses on a second (postponement) key delayed the…
Descriptors: Stimuli, Timeout, Intervals, Animals
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Lattal, Kennon A. – Journal of the Experimental Analysis of Behavior, 2004
From its inception in the 1930s until very recent times, the cumulative recorder was the most widely used measurement instrument in the experimental analysis of behavior. It was an essential instrument in the discovery and analysis of schedules of reinforcement, providing the first real-time analysis of operant response rates and patterns. This…
Descriptors: Operant Conditioning, Positive Reinforcement, Behavioral Science Research, Measurement Techniques
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Reed, Phil; Doughty, Adam H. – Journal of the Experimental Analysis of Behavior, 2005
Response rates under random-interval schedules are lower when a brief (500 ms) signal accompanies reinforcement than when there is no signal. The present study examined this signaled-reinforcement effect and its relation to resistance to change. In Experiment 1, rats responded on a multiple random-interval 60-s random-interval 60-s schedule, with…
Descriptors: Reinforcement, Operant Conditioning, Intervals, Behavioral Science Research
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Shull, Richard L. – Journal of the Experimental Analysis of Behavior, 2005
The relation between the rate of a response ("B") and the rate of its reinforcement ("R") is well known to be approximately hyperbolic: B = kR/(R + R[subscript o]), where k represents the maximum response rate, and R[subscript o] indicates the rate of reinforcers that will engender a response rate equal to half its maximum value. A review of data…
Descriptors: Operant Conditioning, Positive Reinforcement, Intervals, Animals