parameters of the unifocal frontal montage targeting left prefrontal cortex. Figure 5b shows the stimulation parameters of the unifocal temporal montage targeting the left temporal cortex. A bipolar sinusoidal alternating current was applied at either an individual subject defined theta-band frequency (i.e., the theta-tuned condition) or at 8-Hz for all subjects (i.e., the 8-Hz nontuned condition). Stimulation intensity (peak to peak) was set to 1.6 mA for the frontotemporal montages, 1.0 mA for the temporal montage, and 0.6 mA for the frontal montage.
