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. 2018 Sep 4;12:617. doi: 10.3389/fnins.2018.00617

FIGURE 1.

FIGURE 1

Experimental design. After a baseline measurement, participants received either anodal or cathodal tDCS while continuing to perform the prosaccade task, followed by two more post-tDCS assessments. After a washout period of at least 48 h, the second session followed the same protocol, except that the tDCS polarity was opposite (e.g., if participants received anodal tDCS in the first session, cathodal tDCS was applied in the second session, and vice versa).