Figure 1

Experimental procedures. (A) Time course of tACS-TMS session for Experiment 1 (online). Two block of MEPs, PRE and POST, were recorded before and after three combined tACS-TMS blocks. tACS conditions (10 Hz, 20 Hz, sham) were accompanied by TMS-induced measurement (combined tACS-TMS). (B) Time course of tACS-TMS sessions for Experiment 2 (offline). Each session consisted of two blocks of MEPs before and seven blocks of MEPs after tACS. tACS conditions (10 Hz, 20 Hz, sham) were randomized across three sessions, that were separated by at least three days.