Fig. 3

Effect of Origanum majorana on cognitive functions. LPS administration affected mean discrimination ratio (a) and alternation percentage (b). LPS + OM showed a significant increase in the mean discrimination ratio and alternation percentage compared to the LPS group. Mean discrimination ratio of LPS + OM and OM groups was higher than the control group. Data are expressed as mean ± SEM (n = 8), *P ≤ 0.05, **P ≤ 0.01, ***P ≤ 0.001