Figure 2

Cross TF representations between SAPV (S), respiration (R) and HPV (H) from a subject of TTSR data set. (a)–(c) Time-frequency coherence γ_ik(t,f); Ω^(γ) is delimited by white contour. The time course of γ_ik(t) is reported below. (d)–(f) Partial TF coherence γ_ik/z(t,f); Ω^(γ) is delimited by black contour. The time course of γ_ik/k(t) is reported below.(g)–(i) Phase difference spectra θ_ik(t,f) with$(t,f)\in {\Omega }_{\text{ik}}^{\left(\theta \right)}$. The time course of θ_ik(t) and${\mathcal{D}}_{\text{ik}}\left(t\right)$ are reported below.