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.