Abstract
Responding was maintained under a second-order schedule of food delivery in two rhesus monkeys. Every 10th response resulted in the presentation of a brief light flash and the 10th response following the completion of a 30-min fixed interval resulted in the presentation of both food and the brief light flash, FI 30 min (FR 10:S). The pattern of responding generated was typical of second-order schedules. When the amount of food delivered was varied from 1 to 40 gm, there were no consistent effects on responding. In the extinction condition following 15 and 40 gm of food delivery, higher response rates occurred than in the extinction condition following 1 gm of food delivery. The role of the brief light presentations in maintaining responding during extinction was determined with the magnitude of reinforcement held constant at 15 gm. Decreasing the frequency of the brief light presentations by increasing the ratio requirement from 10 to 25 had no consistent effect on food-maintained responding, but the number of responses during extinction decreased under the FR 25. When the brief light presentations were not presented responses during extinction decreased even more.
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This research was supported by DA 00250. A preliminary report of these data was given at the Association for Behavior Analysis Convention, 1981.
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Foltin, R.W., Schuster, C.R. Effects of Extinction on Responding Maintained Under a Second-Order Schedule of Food Presentation in Rhesus Monkeys. Psychol Rec 32, 519–528 (1982). https://doi.org/10.1007/BF03394810
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DOI: https://doi.org/10.1007/BF03394810