Sensory preconditioning for feeding response in the pond snail, Lymnaea stagnalis

Satoshi Kojima, Suguru Kobayashi, Mari Yamanaka, Hisayo Sadamoto, Hiroshi Nakamura, Yutaka Fujito, Ryo Kawai, Manabu Sakakibara, Etsuro Ito*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)


We demonstrated a sensory preconditioning in the pond snail, Lymnaea stagnalis. An appetitive sucrose solution (a conditioned stimulus: CS1) and weak vibration (another conditioned stimulus: CS2) were first associated, and then the CS2 and an aversive KCl solution (an unconditioned stimulus: UCS) were done. To build the conditioning, two different training procedures, spaced and massed, were examined. After the both training, the sensory preconditioning was built: significantly fewer feeding response to the CS1 became elicited; slower latency to the first bite to the CS1 was induced. No significant differences on the memory retention between these training procedures were found in the sensory preconditioning.

Original languageEnglish
Pages (from-to)113-115
Number of pages3
JournalBrain Research
Issue number1
Publication statusPublished - 1998 Oct 12
Externally publishedYes


  • Appetitive stimulus
  • Associative learning
  • Aversive stimulus
  • Classical conditioning
  • Gastropod
  • Massed training
  • Spaced training

ASJC Scopus subject areas

  • General Neuroscience
  • Molecular Biology
  • Clinical Neurology
  • Developmental Biology


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