Some Parameters of Stimulus Preexposure that Affect Conditioning and Generalization of Taste Aversions in Infant Rats
作者： M. Gabriela Chotro , Gumersinda Alonso
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摘要: The effects of stimulus preexposure on conditioning and generalization a taste aversion were evaluated in infant rats, manipulating similarity duration, the length procedure (intermixed vs. blocked) pree xposure. Preexposure to simple tastes retarded reduced (Experiment 1a), whereas preex- posure compound facilitated increased (Experi- ment 1b). Increasing number trials de- creased with 1c). These experiments failed find differential effect intermixed blocked preexposure. In Exper i- 2, 15 min exposure conditioned during resulted weak aversion, 60-min strong aversion. Experiment 3, strength duration directly re- lated nonpreexposed pups, but inversely related preexposed pups. level between stimuli is determined by how affects acquisi- tion rate.
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