Fig. 1.
Average whole-brain global signal correlation maps at the group level. (Top left) Human subjects in wakefulness, non-rapid eye movement stage 1 (NREM1), non-rapid eye movement stage 2 (NREM2), and non-rapid eye movement stage 3 (NREM3). (Bottom left) Human subjects receiving propofol infusion. (Top right) Rats receiving different doses of propofol. (Bottom right) Human subjects of healthy controls, patients with minimally conscious state (MCS), and unresponsive wakefulness syndrome (UWS). Of note, the distinctions in the images of the healthy controls during wakefulness may be due to the fact that different scanners or data acquisition parameters can affect the absolute value of the measurement.