Second-order conditioning with food unconditioned stimulus

Peter C. Holland, Robert A. Rescorla

Research output: Contribution to journalArticlepeer-review

132 Scopus citations


3 experiments investigating 2nd-order conditioning were conducted with a total of 72 male Sprague-Dawley rats. An appetitive Pavlovian conditioning situation was employed in which the response measure was the amount of general activity. Exp I provided a well-controlled demonstration of substantial 2nd-order conditioning. In Exp II extinction of the 1st-order conditioned stimulus (CS) had no effect upon the response to the 2nd-order CS. Exp III examined the relationship of the 2nd-order conditioning paradigm to that of conditioned inhibition. Both phenomena could be observed simultaneously in the same setting. Implications for 2nd-order conditioning and related conditioning phenomena are discussed. (16 ref) (PsycINFO Database Record (c) 2006 APA, all rights reserved).

Original languageEnglish (US)
Pages (from-to)459-467
Number of pages9
JournalJournal of Comparative and Physiological Psychology
Issue number1
StatePublished - Jan 1 1975


  • food unconditioned stimulus, 2nd-order conditioning, male rats

ASJC Scopus subject areas

  • Medicine(all)


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