Figure 6.

Sucrose responsiveness correlates with learning performance in olfactory and tactile classical conditioning (compare to Figures 1, 2 in Scheiner et al., 2001a). (A) Average CR probabilities in four subgroups of animals from olfactory conditioning (dataset 16). Animals were divided into subgroups on the basis of individual gustatory response scores (GRS). Small numbers indicate low responsiveness to sucrose. Animals with high responsiveness to sucrose reach higher plateaus in CR probability than animals with low responsiveness to sucrose. (B) Histogram showing the percentage of animals for each subgroup that start to respond in a given trial. Animals showing at least one CR in any of the trials start to respond early during conditioning. Most non-responders have a low responsiveness to sucrose. (C) Average CR probabilities in four subgroups of animals from tactile conditioning (dataset 17). (D) Histogram showing the percentage of animals for each subgroup that starts to respond in a given trial. The dynamics of tactile learning resemble the dynamics of olfactory learning.