R J Newlin

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Pigeons were exposed to serial, delay, and trace autoshaping procedures. In Experiment I, all conditioned stimuli (CSs) were changes in illumination of the response key. The number of trials to acquisition of the keypeck increased from serial, to 4-sec delay, 8-sec delay, and 8-sec trace procedures, in that order. In Experiment II, which used a longer(More)
Water-deprived rats were studied under a compound schedule that prescribed that responses terminating interresponse times (IRTs) greater than a fixed value t(1) (IRT > t(1) component schedule) initiated a delay of reinforcement interval t(2), at the end of which water was presented if the subject did not respond (R > t(2) component schedule). If the subject(More)
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