Fig. 3From: A functional near-infrared spectroscopy study on hemodynamic changes of patients with prolonged disorders of consciousness responding to different auditory stimuliThe time course of the group-averaged hemodynamic responses in healthy control and pDoC patients during SON and MI tasks. The time course of mean HbO/HbR in healthy control during SON stimuli (A) and MI stimuli (B). The time course of mean HbO/HbR in pDoC patients during SON stimuli (C) and MI stimuli (D)Back to article page