Comparison of behavioral motor effects elicited by chronic unpredictable mild stress, high-fat diet or both in open-field test. The data were obtained one day before rats were sacrificed. Values are expressed as the mean ± SEM (n = 10/group). *P < 0.05 and **P < 0.001 compared to the control group. #P < 0.05 and ##P < 0.01 compared to CMS group. One-way ANOVA followed by Newman-Keuls test.