We thus succeeded in demonstrating
that Lymnaea are capable of the sensory preconditioning
with the spaced training procedure, at least, at Day
3. The memory of this sensory preconditioned response, or
the suppressed feeding response, was found to be main-
tained for at least 3 days t-test: p-0.05, Fig. 1C..
However, the memory retention for the latency to the first
bite was extinguished within a day data not shown