Study overview
The study was conducted as a single-blind, crossover, sham-controlled trial. Each participant completed two sessions on separate days, with an average of 7 days between the two sessions. They received either atDCS or sham tDCS with the order of stimulation conditions being counterbalanced, i.e., half of the participants received atDCS, whereas the other half received sham tDCS for their first session. Each session lasted for about 60 min, including the tDCS setup.