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Untrained naming accuracy separated by group and order. Mean change from baseline in PNT accuracy for group anode and group cathode. Within each group, participants were assigned to receive ‘tDCS first then sham’ or ‘sham first then tDCS’. ‘Blue’ and ‘Green’ colours show participants who received tDCS first followed by sham. ‘Brown’ and ‘Orange’ colours show participants who received sham first followed by tDCS. Error bars show standard errors.
