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. 2019 Mar 18;13:223. doi: 10.3389/fnins.2019.00223

FIGURE 1.

FIGURE 1

Different types of stimulation used in DoC patients. Schematic representation of the different types of invasive a non-invasive stimulation used in DoC patients. We listed the main targets and stimulation parameters (intensities, voltages, frequencies, and number of sessions) used in clinical studies. DBS, deep brain stimulation; Hz, Hertz; mA, milli-ampere; rTMS, rhythmic transcranial magnetic stimulation; tDCS, transcranial direct current stimulation; V, Volt; VNS, vagus nerve stimulation.