Fig. 2

The combined DC-iTBS protocol was iTBS of 1.5-mA intensity superposed on continuous 1-mA DC. The basic pattern of iTBS consisted of bursts containing three biphasic pulses at 50 Hz repeated at 200 ms intervals; and a 2 s train of iTBS was repeated every 10 s. For each stimulation, current intensity was ramped up to 1 mA over 30 s at the beginning, applied for 20 min and then ramped down to 0 mA over 30 s at the end of stimulation