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Extinction of a saccharin—lithium association: Assessment by consumption and taste reactivity

Authors
  • Cantora, Raúl1
  • López, Matías1
  • Aguado, Luis2
  • Rana, Shadna3
  • 1 Universidad de Oviedo, Oviedo, Spain , Oviedo (Spain)
  • 2 Universidad Complutense de Madrid, Madrid, Spain , Madrid (Spain)
  • 3 Wilfrid Laurier University, Waterloo, Ontario, Canada , Waterloo (Canada)
Type
Published Article
Journal
Learning & Behavior
Publisher
Springer-Verlag
Publication Date
Feb 01, 2006
Volume
34
Issue
1
Pages
37–43
Identifiers
DOI: 10.3758/BF03192869
Source
Springer Nature
Keywords
License
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Abstract

Extinction of a conditioned palatability shift preceded extinction of conditioned taste avoidance whether rats were tested using a within-subjects design or a between-subjects design. In each of two experiments, consumption of 0.1% saccharin was paired with either 20 ml/kg of 0.15 M LiCl or equivolume physiological saline on a single trial. In Experiment 1, on each of 10 extinction trials, rats were given a taste reactivity test immediately prior to a consumption test. In Experiment 2, half of the rats were extinguished by taste reactivity testing and half of the rats were extinguished by a consumption test on each of 10 extinction trials. In both experiments, the aversive reactions of gaping and passive dripping were extinguished in a single trial and the suppression of ingestive reactions was extinguished in 2 trials; however, extinction of taste avoidance required 4–5 trials. These results suggest that rats continue to avoid a lithium-paired flavor even when they do not have an aversion to the taste.

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