In the place learning task, percent of correct visits (A) and probe trial after 72 hours (B) are presented. In both A and B, there was no significant effect of genotype. Genotype did not show any effect on percent of incorrect visits during avoidance learning (C), but after 72 hours retention, Ts65Dn mice had significantly more incorrect visits (D). After adding the satellite box to the Intellicage, the number of visits to the satellite box (E) and latency to the first visit of the box (F) are shown. Although there is a significant effect of genotype in E, the post hoc test did not show any significant difference between the genotype in each individual time point. In graphs B, D, and F, each pair of data was tested, and only the significant differences are shown (*=p<0.05). Mean ±/+ SEM is shown. In A and B, n(2N)=10 and n(Ts65Dn)=7. In C and D, n(2N)=9 and n(Ts65Dn)=6. In E and F, n(2N)=10 and n(Ts65Dn)=6. The experiment was done on female mice.