Journal of comparative physiology

, Volume 144, Issue 1, pp 1–8 | Cite as

An analysis of associative learning in a terrestrial mollusc

I. Higher-order conditioning, blocking and a transient US pre-exposure effect
  • Christie Sahley
  • Jerry W. Rudy
  • Alan Gelperin


We have recently demonstrated that associative learning can play an important role in the regulation of food selection behavior ofLimax maximus, a terrestrial mollusc. The tendency ofLimax to approach a normally attractive odor generated by a food source such as carrot or potato can be markedly reduced if exposure to that odor is paired with exposure to a bitter taste (quinidine sulfate). We now report that variables known to influence associative learning by vertebrates (the operations of a second-order conditioning procedure, blocking and US-pre-exposure) similarly influence associative learning byLimax.



conditioned stimulus


unconditioned stimulus




second-order conditioning






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Copyright information

© Springer-Verlag 1981

Authors and Affiliations

  • Christie Sahley
    • 1
  • Jerry W. Rudy
    • 2
  • Alan Gelperin
    • 1
  1. 1.Department of BiologyPrinceton UniversityPrincetonUSA
  2. 2.Department of PsychologyUniversity of ColoradoBoulderUSA

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