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Mean preference changes (second preference ratings minus first preference ratings) in the switch and no-switch conditions across the three TMS groups; (a) pMFC group, (b) sham-pMFC group, and (c) PPC group. Error bars indicate the SEM. Note that “preferred” and “unpreferred” (x-axis) are based on participant's relative preferences of paired images, which was revealed during stage 2 of the choice task (Fig. 1).
