Fig. 3.
Functional cortical connectivity changes across the studied epochs, as assessed by weighted phase lag index (wPLI). (A) Group-level (mean across all available patients) connectogram of the mean wPLI between frontal (F5, F6, Fz) and parietal (P5, P6, Pz) channels, and between prefrontal (Fp1, Fp2) and frontal channels. (B) The mean and SD of wPLI values at alpha (7 to 15 Hz), theta (3 to 7 Hz), and delta (0.5 to 3 Hz) bands. *Significant changes relative to the preoxygenation epoch for frontal–parietal (blue) and prefrontal–frontal (red) wPLI, respectively (Bonferroni-corrected P < 0.05); # significant difference between frontal–parietal and prefrontal–frontal wPLI (Supplemental Digital Content 4, fig. 1, Bonferroni-corrected P < 0.05), using linear mixed model analysis.

Functional cortical connectivity changes across the studied epochs, as assessed by weighted phase lag index (wPLI). (A) Group-level (mean across all available patients) connectogram of the mean wPLI between frontal (F5, F6, Fz) and parietal (P5, P6, Pz) channels, and between prefrontal (Fp1, Fp2) and frontal channels. (B) The mean and SD of wPLI values at alpha (7 to 15 Hz), theta (3 to 7 Hz), and delta (0.5 to 3 Hz) bands. *Significant changes relative to the preoxygenation epoch for frontal–parietal (blue) and prefrontal–frontal (red) wPLI, respectively (Bonferroni-corrected P < 0.05); # significant difference between frontal–parietal and prefrontal–frontal wPLI (Supplemental Digital Content 4, fig. 1, Bonferroni-corrected P < 0.05), using linear mixed model analysis.

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