کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
919023 919872 2011 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis of the US-preexposure effect in flavor acceptance conditioning
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب رفتاری
پیش نمایش صفحه اول مقاله
Analysis of the US-preexposure effect in flavor acceptance conditioning
چکیده انگلیسی

In three experiments, rats received exposure to a sucrose solution followed by conditioning with a neutral flavor as the conditioned stimulus (CS) and sucrose as the unconditioned stimulus (US). In Experiments 1 and 2, some rats were given both the preexposure and the conditioning phases in a highly familiar context (the homecage), whereas other animals received both phases in a novel and distinctive context. In both cases the magnitude of the conditioning effect was reduced by preexposure to the US. Experiment 3 directly assessed the possible role of contextual cues by changing the context between the exposure phase and the conditioning phase but found no loss of the US-preexposure effect in these conditions. These results lend no support to the blocking-by-context account of the US-preexposure effect; alternative interpretations are considered.


► The neophobic response to sucrose declines with exposure.
► Preexposure to sucrose also reduces its ability to support conditioning.
► The latter effect is found both when the training context is familiar and when it is novel.
► The effect is not influenced by a change of context between preexposure and conditioning.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Learning and Motivation - Volume 42, Issue 4, November 2011, Pages 273–281
نویسندگان
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