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. 2015 May 11;9:27–35. doi: 10.4137/JEN.S25057

Figure 4.

Figure 4

Effect of selective opioid receptor antagonists on the morphine-induced decrease in Y-maze alternations in mice. Values are shown as mean ± SEM (n = 10). beta-FNA, β-funaltrexamine (a μ-selective opioid receptor antagonist); nor-BNI, norbinaltorphimine (a k-selective opioid receptor antagonist); and NTI, naltrindole (a δ-selective opioid receptor antagonist). **P < 0.01, compared with a corresponding group treated with saline (one-way ANOVA followed by a post hoc Bonferroni–Dunn test). †P < 0.05, ††P < 0.01, †††P < 0.001; significant difference between the groups is shown by horizontal bars (one-way ANOVA followed by a post hoc Bonferroni–Dunn test).