Fig. 7

Comparison of accumulated HbO (HbOAcc) poststimulation for the lesion-side motor and parietal regions and the change in Fugl-Myer assessment for upper limb score (FMA-UE). Individual participants who received real-tDCS stimulation are depicted with red dots, while those who received sham-tDCS are represented by green dots. (A) Outliers in HbOAcc (z-score > 2) are indicated with an outlined circle. The red arrow denotes highly linear changes in HbOAcc and changes in FMA-UE score for six participants who received real-tDCS stimulation. (B) Comparison of HbOAcc and change in FMA-UE scores, excluding outliers, with the linear regression line (real-tDCS = red, sham-tDCS = green). The p-value of linear regression is reported on the top corner of each region