Fig. 2
Mean pupillary responses to pictures of the sun, moon, scrambled sun, and mean luminance images in healthy volunteers, minimally conscious sates patients and vegetative state/unresponsive wakefulness syndrome patients. Baseline-corrected pupil size during the 500 to 3000 ms post-stimulus presentation interval. Lower, upper and median lines of each box indicate respectively the 25th and 75th percentiles and the median of each sample. The lines extending above and below the box represent the sample minimum and maximum values. Individual data are represented by dots. FDR-corrected Wilcoxon paired test results for multiple comparisons are shown: * p < 0.05, ** p < 0.01.
