Figure 5.

Production rates of sentences. (A) On the last day, the production rate of sentences was significantly higher than that at pre-training in both the tDCS session (red) and the sham session (blue), and we found no effect by the tDCS. (B) At the follow-up day, the production rate of sentences using the trained words was significantly higher than that at pre-training in both sessions. On the other hand, we found significant improvement in sentence production for the untrained words in the tDCS session, but not in the sham session. The line in each box represents the median. The top and bottom of each box represent the upper and lower quartiles, respectively. The error bars represent the data range. *p < 0.05.