Figure 2: Increase in central dopaminergic activities, including DOPAC content and DOPAC/DA ratio, in the open field test in male Formosan wood mice compared with those in male C57BL/6 mice. DOPAC content in the (a) NA, (b) ST, and (c) MPFC in male C57BL/6 and Formosan wood mice. DOPAC/DA ratios in the (d) NA, (e) ST, and (f) MPFC in male C57BL/6 and Formosan wood mice. The vertical line above each bar represents the SEM (n = 9 for each group). ***P < 0.001, compared with C57BL/6 mice. DOPAC/DA: 3,4-Dihydroxyphenylacetic acid/Dopamine, MPFC: Medial prefrontal cortex, NA: Nucleus accumbens, ST: Striatum, SEM: Standard error of the mean.