Figure 3 | Scientific Reports

Figure 3

From: Pupil dilation response elicited by violations of auditory regularities is a promising but challenging approach to probe consciousness at the bedside

Figure 3

Local, global and maximal violation PDR effects for MCS and VS/UWS groups of DoC patients. Grand averages of pupil diameter (in pixels) are plotted over time (in seconds) in MCS (n = 14) and VS/UWS patients (n = 10) in an oddball paradigm. While the event-related pupil response was undistinguishable between LSGS (green curves) and LDGD (red curves) trials in the VS/UWS group, a significant (black horizontal segments) pupil dilation was observed in response to deviant trials in the MCS group. To distinguish conscious processing of inter-trials global regularity from non-conscious processing of intra-trials local regularity we contrast local standard trials to local deviant trials and global standard trials to global deviant trials and found no global or local effect in both groups. Grey dotted lines index first sound onset and fifth sound offset respectively.

Back to article page