Figure 1.

Illustration of the experimental design. Block 1 was performed as a baseline measure before tDCS onset. The stimulation ramp‐up in both conditions began at the start of Block 2 and the active ramp‐down finished at the end of Block 3. In Blocks 2–4, sham‐blinding probe questions were inserted at 30 s intervals to assess (1) whether participants could identify when the stimulation was switched on and (2) the confidence of their decision