One-trial reward learning in the snail Lymnea stagnalis

J Neurobiol. 1984 Jan;15(1):67-72. doi: 10.1002/neu.480150107.


We present evidence that the pond snail Lymnaea stagnalis is capable of aquisition and extensive retention of an appetitively reinforced feeding response after only a single training trial. Food-deprived snails presented with a single pairing of a phagostimulant (a mixture of sucrose and casein digest) and a novel, non-food chemostimulus (amyl acetate) subsequently made feeding responses to the amyl acetate and retained the association for at least 19 days. This demonstration of one-trial, non-aversive classical conditioning enhances the utility of Lymnaea stagnalis as a model system for the detailed analysis of neural mechanisms underlying plasticity.

MeSH terms

  • Animals
  • Conditioning, Operant*
  • Feeding Behavior
  • Lymnaea
  • Taste*