TMS train effects on the TEP
To compare evoked responses from TMS probe pulses at 500 and 2000 ms after active and sham TMS trains, we computed the local mean field amplitude (LMFA) for 20–50 ms and 50–80 ms time windows in a dlPFC region of interest (ROI). Because amplitude of an averaged EEG waveform is not independent of latency variance, and the early TEP peaks are not yet well defined, we used area under the curve (AUC), which captures the full morphology of the LMFA waveform by aggregating it over a time window rather than focusing on an instantaneous amplitude