Abstract
Odour aversion learning is often potentiated in the presence of flavour stimuli. Establishment of an aversion to an odour is greater when an odour + flavour compound is paired with illness than when the odour alone is paired with illness. Holland (Citation1983) showed that under some circumstances auditory or olfactory stimuli previously paired with flavours may also potentiate odour aversion learning. The present experiments examined limitations on this representation-mediated potentiation of aversion learning. The results indicated that conditioned stimuli (CSs) that activate representations of potentiating cues are themselves immune to potentiation by other CS-activated representations, but remain susceptible to potentiation by their real stimulus associates.
Acknowledgments
Experiment 1 was performed at Duke University and was described casually in Holland (Citation1990). Thanks to Vanessa McKenna, Rose Baker, Souvik Chatterjee, and Mary Keough for their assistance in data collection. Support for Experiments 2–4 was provided by NIH Grant MH65879; support for Experiment 1 was provided by NSF Grant BNS-8513603.