Figure 5

Distributions of the mean values of the integral energy ratios of the high frequency range to the low frequency range, \({\langle {\upvarepsilon }_{H}/L \rangle }_{\mathrm{AW},\mathrm{ AS},\mathrm{ QS}}\), for each brain region under consideration. These means are calculated for the physiological states of AW (a), QS (b) and AS (c). Acronyms for spatial zones are given under each diagram in accordance with Table 2. Red color indicates estimates for group I, GA34–37^10d. Green and blue colors code the estimates for the first and second monitoring events (GA38–41^8h and GA38–41^10d, respectively) in group II. The localization of EEG channels on the scalp for each hemisphere is shown above. The diagrams depict the following statistical characteristics of numerical indicators: the first and the third quartiles (25–75%, inside the box), the median and the mean (transverse line and point inside the box, respectively), 1.5 interquartile ranges (shown by whiskers), and outliers represented by asterisks. At the bottom, underlining with asterisks highlights the pairs of values meeting the Mann–Whitney test with p < 0.001.