(a)
(b)
Figure 3: Y-Maze spontaneous alternation of young, aged, and POS-treated mice (13.75 mg/kg b.w.) during a 5 min period time of testing. Number of entries (a) and alternation rate (b); mean ± SEM, one-way ANOVA with Bonferroni posttest; ; ; . Alternation rate (c) was compared to a theoretical value of 50% using a univariate t-test with and .