When Lymnaea were conditioned with the spaced training
procedure, the feeding response to the CS1 was signifi-
cantly suppressed at Day 3 Fisher’s PLSD: p-0.05, Fig.
1A.. As for a latency to the first bite to the CS1, the
conditioned animals showed significantly slower latency
than the control animals did at Days 2 and 3 Fisher’s
PLSD: p-0.05,