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Davison, Michael; Baum, William M. – Journal of the Experimental Analysis of Behavior, 2010
Four pigeons were trained in a procedure in which concurrent-schedule food ratios changed unpredictably across seven unsignaled components after 10 food deliveries. Additional green-key stimulus presentations also occurred on the two alternatives, sometimes in the same ratio as the component food ratio, and sometimes in the inverse ratio. In eight…
Descriptors: Stimuli, Auditory Perception, Animals, Responses
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Lieving, Gregory A.; Reilly, Mark P.; Lattal, Kennon A. – Journal of the Experimental Analysis of Behavior, 2006
An observing procedure was used to investigate the effects of alterations in response-conditioned-reinforcer relations on observing. Pigeons responded to produce schedule-correlated stimuli paired with the availability of food or extinction. The contingency between observing responses and conditioned reinforcement was altered in three experiments.…
Descriptors: Behavior Modification, Stimuli, Reinforcement, Conditioning
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Randell, Tom; Remington, Bob – Journal of the Experimental Analysis of Behavior, 2006
This paper reports two experiments that investigated the role of verbal behavior in the emergence and generalization of contextually controlled equivalence classes. During both experiments, participants were trained with two different combinations of the same easily nameable, yet formally unrelated, pictorial stimuli. Match-to-sample baselines for…
Descriptors: Behavior, Naming, Pictorial Stimuli, Color