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Weatherly, Jeffrey N.; Bauste, Grant A.; McDougall, Casey L.; Nurnberger, Jeri T. – Psychological Record, 2006
Previous research has shown that rats increase their rate of responding for 1% sucrose reinforcement in the first half of the session if food-pellet, rather than 1% sucrose, reinforcement will be available in the second half (i.e., positive induction). Four experiments investigated whether this induction effect would be changed by altering the…
Descriptors: Reinforcement, Logical Thinking, Animal Behavior, Animals
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Weatherly, Jeffrey N.; Arthur, Emily I. L.; Palbicki, Janel; Nurnberger, Jeri T. – Learning and Motivation, 2004
Research has demonstrated that rats' rates of operant behavior maintained by 1% sucrose reinforcement in the first half of an experimental session are heightened when food-pellet reinforcers, rather than 1% sucrose, will be available in the second half. Experiment 1 showed that rats that had been displaying this positive induction effect acquired…
Descriptors: Logical Thinking, Reinforcement, Food, Animal Behavior