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. 2013 Mar 6;3:1395. doi: 10.1038/srep01395

Figure 4. Levels of dopamine, DOPAC, 5-hydroxytryptamine and 5-HIAA in rats raised in dim light–dark cycle and rats raised for 20 days or 3 months under bright light.

Figure 4

The scale indicating dopamine and DOPAC levels is on the left y-axis while 5-hydroxytryptamine and 5-HIAA levels refer to the right y-axis. *Significantly different from animals raised in dim light – dark cycle (dopamine: F10,8,8 = 9.01461, p = 0.00129; DOPAC: F10,8,8 = 6.42800, p = 0.00606, using one way ANOVA plus Scheffe's F test).