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. 2024 Dec 12;34(1):155–173. doi: 10.1044/2024_AJSLP-24-00016

Figure 2.

This is a bar graph showing the mean naming accuracy change from baseline for trained verbs, untrained verbs, and nouns. The graph has three sections, each representing a different word type. The x-axis shows the time points, 1 week post and 8 weeks post, and the y-axis shows the mean naming accuracy change from baseline. The bars are colored dark green, light green, dark gray, and light gray, representing the active and sham groups for each word type. The graph shows that the active group had a significant increase in naming accuracy for trained verbs and untrained verbs at the 1-week time points. The active group also had a significant increase in naming accuracy for untrained verbs at the 8-week time point. The sham group showed significant improvement for trained verbs at the 1-week time point, but not the 8-week time point. There were significant differences between active and sham groups for both time points for untrained verbs, with significantly more improvement for the active group. The graph also shows that the active and sham group had a significant decrease in naming accuracy for nouns at 8 weeks post. Neither group showed a significant change in naming accuracy for nouns at the 1-week time point. The graph is labeled with asterisks to indicate significant differences between groups.

Naming results. Change in naming accuracy between baseline and two follow-up time points (1 week and 8 weeks posttreatment) for transcranial direct current stimulation (tDCS) and sham stimulation. Results include naming (A) trained verbs, (B) untrained verbs, and (C) nouns. A change above 0% indicates an improvement from the baseline, and a change below 0% indicates a decline from the baseline. Asterisks immediately above bars indicate a significant main effect at that time point. Brackets indicate a significant difference between tDCS and sham at that time point. Vertical error bars indicate standard error.