Figure 1From: Analysis of sleep disorders under pain using an optogenetic tool: possible involvement of the activation of dorsal raphe nucleus-serotonergic neuronsEffect of sciatic nerve ligation on thermal hyperalgesia. A plantar test was performed at 7 days after sciatic nerve ligation or sham operation. The statistical significance of differences between groups was assessed by one-way ANOVA. Each point represents the mean ± SEM (n = 8). *p < 0.05, ***p < 0.001 vs. sham.Back to article page