Figure 1From: Contribution of anterior cingulate cortex and descending pain inhibitory system to analgesic effect of lemon odor in mice The Effect of the inhalation of lemon oil on the elevated plus-maze task. The graph represents the total time spent on the open arms during a 5 min period in control mice, mice exposed to the triethyl citrate, mice exposed to the lemon oil and mice exposed to the cat urine. Each value represents the mean ± S.E. *P < 0.05 compared to the control group.Back to article page