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Fig. 3 | Biological Research

Fig. 3

From: Mild poikilocapnic hypoxia increases very low frequency haemoglobin oxygenation oscillations in prefrontal cortex

Fig. 3

Median (thick lines) of wavelet phase coherence (left column) and phase difference (right column) between a, g BP vs SASLEFT, b, h BP vs HbO2, c, i BP vs HR/ECG, d, j HR/ECG vs SASLEFT, e, k HR/ECG vs HbO2 and f, l SASLEFT vs HbO2. Coloured shading indicates the interquartile range (25th, 75th percentiles) for 30 subjects. Coherence below the 95th percentile of the surrogates (light grey line and shading) is not considered significant. Red (blue) lines and shade areas correspond to breathing a gas mixture with 19.8% (14.8%) O2. *p  < 0.05; **p  < 0.01; ***p  < 0.001

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