Figure 2
From: Relaxing learned constraints through cathodal tDCS on the left dorsolateral prefrontal cortex
Solution rates (as the percentage of participants who solved the problem) before (blue) and after (red) cathodal, anodal and sham tDCS for problems type A, B, C, and D. Participants who solved problems type C in the pre-test were excluded from the analysis (n = 4,/1 from cathodal, 2 from anodal and 1 from the sham group). Solution rate represents the proportion of participants within each stimulation group who managed to solve the problem correctly in the corresponding session (pre- and post-test). We tested the difference in the proportion of participants solving the problem between groups using chi-square. The numbers in blue are the results for the differences between groups in the pre-test and in red for the post-test. The proportion of participants who successfully solved the problems was significantly different between groups only for problems type C in the post-test.
