Fig. 5: Interpretation of intrusions and instability in terms of macro and microstructural PSG features.
From: A continuous approach to explain insomnia and subjective-objective sleep discrepancy
A Boxplots with the population correlations between entropy and spectral power in 6 EEG frequency bands for electrode C3. B Same as (A), but for the DKL. C Same as (B), but using the difference between power in two consecutive epochs within the same sleep stage. ΔPSD corresponds to PSD(t) - PSD(t + 1), where t corresponds to a specific epoch. D Same as (A), but splitted by sleep groups, and showing only delta and gamma bands. E Same as (D), but for the DKL vs ΔPSD. F Correlation between the average DKL in wakefulness and the wake self-transition probability, for the 3 sleep groups (colors). Black line is the correlation for the whole population and colored lines are the correlation for each sleep group.
