The experiment procedure.
(a)Experiment procedure of the current study. Note that the Cyberball game was played at the last 5 minutes of the tDCS. (b)Example of the 2-back task.At the last 5 minutes of the anodal or sham stimulation, participants played the Cyberball game, which was widely used to manipulate social exclusion [Following the stimulation and the Cyberball game, participants completed a standard post-Cyberball questionnaire consisting of a need-threat scale and a mood rating schedulen [Then, participants performed the N-back task, which was a common method to assess working memory [