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Winterbauer, Neil E.; Bouton, Mark E. – Learning and Motivation, 2011
Three experiments with rat subjects examined resurgence of an extinguished instrumental response using the procedure introduced by Epstein (1983) with pigeons. There were three phases: (1) initial acquisition of pressing on a lever (L1) for pellet reward, (2) extinction of L1, and (3) a test session in which a second lever (L2) was inserted,…
Descriptors: Rewards, Experimental Psychology, Animals, Laboratory Experiments
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Aoyama, Kenjiro – Learning and Motivation, 2007
This study tested the effects of post-session wheel running on within-session changes in operant responding. Lever-pressing by six rats was reinforced by a food pellet under a continuous reinforcement (CRF) schedule in 30-min sessions. Two different flavored food pellets were used as reinforcers. In the wheel conditions, 30-min operant-sessions…
Descriptors: Animals, Animal Behavior, Operant Conditioning, Reinforcement
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Bonardi, Charlotte – Learning and Motivation, 2007
In Experiment 1, rats were trained on a discrimination in which one occasion setter, A, signaled that one cue (conditioned stimulus, CS), x, would be followed by one outcome, p (unconditioned stimulus, US), and a second CS, y, by a different outcome, q (x [right arrow] p and y [right arrow] q); a second occasion setter, B signalled the reverse…
Descriptors: Stimuli, Experiments, Animals, Animal Behavior
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Capaldi, E. J.; Martins, Ana; Miller, Ronald M. – Learning and Motivation, 2007
Rats in a Pavlovian situation were trained under three different reward schedules, at either a 30 s or a 90 s intertrial interval (ITI): Consistent reward (C), 50% irregular reward (I), and single alternation of reward and nonrewarded trials (SA). Activity was recorded to the conditioned stimulus (CS) and in all 10 s bins in each ITI except the…
Descriptors: Rewards, Intervals, Cues, Classical Conditioning
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Neumann, David L. – Learning and Motivation, 2007
The renewal of extinguished conditioned behaviour appears to reflect context-dependent learning. The present research used a conditioned suppression task with humans to examine whether instructions concerning the context could influence renewal. Pairings of a conditional stimulus (CS) and unconditional stimulus (US) were made in one context,…
Descriptors: Cues, Conditioning, Experiments, Context Effect