Representation-mediated extinction of conditioned flavor aversions

Peter C. Holland, Deswell T. Forbes

Research output: Contribution to journalArticlepeer-review


Conditioned flavor aversions were extinguished by presenting without consequence auditory stimuli that had been previously paired with the aversive flavor. In Experiment 1, rats that received tone-sucrose pairings, then sucrose-lithium chloride (LiCl) pairings, and finally repeated tone-alone presentations showed greater sucrose consumption in subsequent testing than rats that received similar sucrose-LiCl pairings and tone-alone presentations but no initial tone-sucrose pairings. Experiment 2 demonstrated the stimulus specificity of the mediated extinction observed in Experiment 1. In Experiment 3, rats that received first-order light-food and second-order tone-light pairings prior to sucrose-LiCl pairings did not show greater subsequent sucrose consumption when extinction of the second-order tone intervened. These results suggest that conditioned stimulus (CS)-evoked representations of events can substitute for those events themselves in the extinction of previously established associations.

Original languageEnglish (US)
Pages (from-to)454-471
Number of pages18
JournalLearning and Motivation
Issue number4
StatePublished - Nov 1982

ASJC Scopus subject areas

  • Health(social science)
  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Education
  • Developmental and Educational Psychology


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