Davison, M; Krageloh, CU; Fraser, M; Breier, BH
(AUT University,
Society for the Experimental Analysis of Behavior, Inc; 2007)
Two groups of 10 male rats were trained to nose poke for food pellets at four alternatives that provided differing rates of pellet delivery on periodic schedules. After a fixed number of pellets had been delivered, 5, 10 ...