Figure 4

Time-scale coherence maps of NVC in the selected cohort. The x-axis represents time in hours, the y-axis represents scale in seconds, and the color scale represents the amplitude of WTC coherence, R². The areas with significant NVC (p < 0.05) are contoured with black lines and filled by red color within the time-scale WTC maps. WTC-based SctO2-aEEG coherence (R²) are plotted for each one of the 8 neonates (Neonate #: N1-N8). Each vertical column represents the results derived from three aEEG methods, respectively, highlighting the similarity in NVC pattern for each newborn among R_{SctO2→aEEG_M1}, R_{SctO2→aEEG_M2}, and R_{SctO2→aEEG_M3}.