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  • Title: An ear for quality: differential associative characteristics of taste-potentiated auditory and odor avoidance.
    Author: von Kluge S, Perkey T, Peregord J.
    Journal: Physiol Behav; 1996 Aug; 60(2):331-9. PubMed ID: 8840888.
    Abstract:
    This research compared the avoidance behavior of rats exposed to either a taste-tone (NaCl-70 dB, 1800 Hz) or a taste-odor (NaCl-almond) compound that had been paired with LiCl-induced illness. When tested in the presence of either the odor or the auditory cue presented alone it was found that taste potentiated both cues, but stronger initial avoidance and resistance to extinction was shown to the odor cue. A second experiment examined the generalization of potentiated odor and auditory aversions to a novel environment. Rats were exposed to either a taste-odor or taste-tone compound, again followed by illness. Half of each group was tested in the conditioning chamber and half in a novel chamber. Odor aversions were not affected by location, whereas auditory aversions were significantly stronger in the conditioning chamber. Experiment 3 showed that taste-potentiated odor and auditory aversions showed different patterns of extinction when the taste aversion on which they were based was gradually extinguished. These experiments provide evidence that while the taste potentiation of auditory cues is a reliable phenomena, the pattern of effects is different from that of taste-potentiated odor aversions.
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