Fig. 4

Pearson’s correlation between the spontaneous alternation percentage vs. AChE (a), spontaneous alternation percentage vs. MDA (b), working memory errors vs. AChE (c), working memory errors vs. MDA (d), reference memory errors vs. AChE (e) and reference memory errors vs. MDA (f) in control group (filled circle), scopolamine alone treated-group (filled square), Sco+ME (50 mg/kg) group (filled diamond) and Sco+ME (200 mg/kg) group (filled triangle)