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. 2020 Jun 4;13:70. doi: 10.3389/fnmol.2020.00070

FIGURE 4.

FIGURE 4

Metabolite changes in the locus coeruleus. Data are presented as means of NAA/Cr, Cho/Cr, mI/Cr, and Glx/Cr concentrations, compared between baseline (before tDCS) and after a 5-day tDCS treatment (day 5). Vertical lines represent SD. Represents significant difference; ∗∗p < 0.01, p < 0.05.