Graph theory metrics (averaged across subjects) of WFC and CFC networks in the epilepsy and the control group. (a)–(c) γ, λ, σ of WFC networks containing within band connections only; (d)–(e) γ, λ, σ of CFC networks containing between band connections; (f)–(i) γ, λ, σ of two-layer networks containing both within and between band connections. Error bars represent standard error across subjects. The epilepsy show altered functional network structure with improved small-world features.