GENERALIZATION OF THE CS-PREEXPOSURE EFFECT TRANSFERS TO TASTE-AVERSION LEARNING

Rats repeatedly exposed to a maple, vanilla, banana, or water solution were subsequently poisoned with lithium chloride after drinking the maple solution. Subjects preexposed to water showed the strongest aversions to maple, followed, in descending order, by rats preexposed to banana, vanilla, and maple. These results suggest that the effects of prepoisoning experience with a novel flavor generalized to the maple CS and interfered with the development of the maple aversion. The technique reported here is potentially applicable to study of gustatory discrimination processes. © 1979 Psychonomic Society, Inc.