Abstract
The sucrose preferences of two prosimian primate species, slow loris and greater galago, were determined under aperiodic reinforcement of a free operant. Stimuli were solutions of the following concentrations: 5%, 10%, 20%, 30%, and 40%. Solutions of intermediate concentration were preferred, and thus the function relating barpresses to concentrations was nonmonotonic.
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This research was supported in part by National Institutes of Health Grant MH 19196-01 to the second author.
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Fobes, J.L., Ehrlich, A., Mukavetz, J.A. et al. Free operant measurement of taste preferences in prosimian primates. Animal Learning & Behavior 1, 99–101 (1973). https://doi.org/10.3758/BF03214571
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DOI: https://doi.org/10.3758/BF03214571