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1	Caffeine’s Effects on Pausing During Alternating Work Requirements Libman, Benjamin M. 05 1900 (has links) There is a significant body of literature stating that caffeine is the most widely consumed drug in the world, yet its effects on operant behavior are little understood. Some of the current research on caffeine suggests that it may play a role in altering motivational states related to transitions between previous and upcoming work requirements. The purpose of the current study was to examine the effects of caffeine on postreinforcement pausing during transitions between small and large fixed ratio rudiments. Eight rats were exposed to five doses of caffeine and and a two-component multiple schedule. We found that caffeine does systematically alter the length of pausing during transitions between fixed ratio requirements, however the magnitude of the effect may be dependent on the baseline rate of responding. Caffeine rich-to-lean pausing effort motivation behavioral pharmacology behavior analysis Psychology, Behavioral Psychology, Experimental Caffeine -- Physiological effect. Psychopharmacology. Motivation (Psychology)