Devaluation of Pavlovian conditioning in the 10-day-old rat

Philipp J. Kraemer, Heather Hoffmann, Christopher K. Randall, Norman E. Spear

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


This experiment established that for the infant rat, 10 days postpartum, a preference conditioned to an olfactory stimulus (conditioned stimulus) could be substantially-decreased-by subsequently lowering the value of the unconditioned stimulus (heat). This devaluation effect disappeared when a sufficiently long interval elapsed between the devaluation treatment and the test, despite maintained retention of the original conditioned preference over this same interval. This suggests that devaluation in infant rats does not permanently change the animal's original representation of the unconditioned stimulus, but instead may replace it temporarily with a conflicting representation.

Original languageEnglish
Pages (from-to)219-222
Number of pages4
JournalAnimal Learning and Behavior
Issue number3
StatePublished - Sep 1992

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Animal Science and Zoology
  • General Psychology
  • Behavioral Neuroscience


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