Fig. 7From: A functional near-infrared spectroscopy study on hemodynamic changes of patients with prolonged disorders of consciousness responding to different auditory stimuliThe comparison of hemodynamic changes among HC and the MCS and the VS patients during SON/MI tasks. The health controls and the pDoC patients received SON/MI stimulations as indicated. The HbO/HbR concentrations during SON (A and B) and MI (C and D) were recorded. The fitting slopes of HbO/HbR are presented during SON (E and F) and MI (G and H). **p < 0.01, ***p < 0.001, ****p < 0.0001Back to article page