Fig. 2

Schematic overview of the study protocol and lesion overlap map. A All participants received 20 sessions of 20-min real or sham bihemispheric transcranial direct current stimulation (tDCS) with concurrent task-oriented therapy before 90-min conventional regular rehabilitation twice-daily for ten weekdays. The interventional timeline included longitudinal assessments at three timepoints (T1, T2, and T3). B Diffusion-weighted MRI-identified infarct maps of each group (real 13 vs. sham 14) overlaid on a standard brain from the Montreal Neurological Institute. The color bar indicated the participant number