期刊
JOURNAL OF EXPERIMENTAL PSYCHOLOGY-ANIMAL BEHAVIOR PROCESSES
卷 36, 期 1, 页码 117-125出版社
AMER PSYCHOLOGICAL ASSOC
DOI: 10.1037/a0016772
关键词
taste aversion; flavor preference learning; inhibitory learning; re-acquisition; rats
资金
- Australian Research Council
Food-deprived rats learned to avoid a flavor negatively correlated with access to a rich nutrient, 20% maltodextrin (20M) solution. This avoidance in two-bottle choice tests was produced by training consisting of either an unpaired condition where sessions of unflavored 20M were intermixed with sessions of 2 or 3% maltodextrin (2M or 3M) flavored with salt (Experiment 1) or almond (Experiment,; 3 and 4) or a differential conditioning procedure where one flavor was mixed with 20M and another with 2M (Experiment 2). Avoidance was counter-conditioned by mixing the target flavor with 20M (Experiment 1), generalized to a neutral context (Experiment 3), and displayed strong resistance to extinction (Experiment 4). The results demonstrated that food avoidance learning can occur in the absence of an aversive unconditioned stimulus and indicated that impaired control groups and differential conditioning procedures may be misleading in flavor preference learning research when further control conditions are absent.
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