Concurrent Water-Drinking on FI and CRF Food-Reinforcement Schedules in the Rhesus Monkey

Abstract

Concurrent drinking was recorded in 3 rhesus monkeys for 5 sessions in which bar-pressing was maintained on a CRF schedule of food reinforcement and for 10 sessions on an FI 1-min. reinforcement schedule. All Ss showed an increase in water consumption per session on the FI 1-min. schedule. The highest frequency of drinking occurred 30 to 70 sec. post-reinforcement. Due to a 7½-sec. change-over-delay procedure, long bursts of drinking delayed the delivery of over 70% of the FI 1-min. reinforcements for 2 Ss.