Fig. 2: Intrusions and instability on good sleepers and in insomnia with and without SOSD.
From: A continuous approach to explain insomnia and subjective-objective sleep discrepancy

A Boxplots with average hypnodensities inferred for each sleep stage scored by experts and for each sleep group (colors). Black horizontal lines in the top of the panels denote significant differences between groups (* represents Bonferroni corrected Kruskal-Wallis p < 0.001). B, C The respective average level of intrusion (entropy) and instability (DKL) for each sleep stage scored by experts and sleep group, respectively. Black horizontal lines on top of the panels denote significant pairwise differences (+ represents Bonferroni corrected Wilcoxon rank sums p < 0.001). SOSD−: n = 624, SOSD + : n = 199 and GS: n = 104; Each sample corresponds to a different participant.