The effect of evodiamine on the recognition memory in ICV-STZ treated mice detected by a novel object recognition test. Control mice (CT), STZ mice, Donepezil mice, STZ/Evo 50 mice, STZ/Evo 100 mice were included. The recognition index in the test section (a) and training section (b) were measured. All data are presented as the mean ± SEM. The analysis was performed using one-way ANOVA with a LSD post hoc test between groups (n = 15, ##p < 0.01 vs. STZ mice)