Sensory preconditioning for feeding response in the pond snail, Lymnaea stagnalis.
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.
Kojima
S
S
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.
Kobayashi
S
S
Yamanaka
M
M
Sadamoto
H
H
Nakamura
H
H
Fujito
Y
Y
Kawai
R
R
Sakakibara
M
M
Ito
E
E
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
D013395:Sucrose