title: Sensory preconditioning for feeding response in the pond snail, Lymnaea stagnalis.
abstract: 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.
authors.affiliation: Laboratory of Animal Behavior and Intelligence, Division of Biological Sciences, Graduate School of Science, Hokkaido University, North 10, West 8, Kita-ku, Sapporo 060-0810, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Kojima
authors.forename: S
authors.initials: S
authors.lastname: Kobayashi
authors.forename: M
authors.initials: M
authors.lastname: Yamanaka
authors.forename: H
authors.initials: H
authors.lastname: Sadamoto
authors.forename: H
authors.initials: H
authors.lastname: Nakamura
authors.forename: Y
authors.initials: Y
authors.lastname: Fujito
authors.forename: R
authors.initials: R
authors.lastname: Kawai
authors.forename: M
authors.initials: M
authors.lastname: Sakakibara
authors.forename: E
authors.initials: E
authors.lastname: Ito
mesh_terms: D000818:Animals; D001066:Appetite; D001245:Association Learning / Q000502:physiology*; D003214:Conditioning, Classical / Q000502:physiology*; D005247:Feeding Behavior / Q000502:physiology*; D008195:Lymnaea / Q000502:physiology*; D008568:Memory; D013395:Sucrose; D013997:Time Factors; D014732:Vibration
chemical_list: D013395:Sucrose