Figure 5.
Box plots of the measures of interaction predictability, Iη,Φ∖x→x, quantifying how the prediction of each brain process (x=δ, θ, α, σ, β) results from the interaction between the remaining brain processes and the cardiac process η, computed in healthy controls (CTRL), in patients with severe sleep apnoea–hypopnoea syndrome (SAHS), and in the same patients studied after prolonged continuous positive airway pressure therapy (CPAP). For each measure, significantly non-zero interaction predictability is denoted by the symbol hash (p<0.01, Wilcoxon signed-rank test).