Controlling human fixed-interval performance with fixed-ratio responding or differential reinforcement of low-rate responding in mixed schedules

Abstract

Low response rates and postreinforcement pauses occurred under an FI schedule when a DRL schedule and the FI schedule operated in alternation. High constant FI responding (no pauses) occurred when FR and FI schedules alternated. These results were similar to previous ones which were obtained when FR or DRL responding occurred prior to exposure to an FI schedule.