Fig. 9.

Threshold values obtained with surrogate data FT1 for: $\langle {\mathrm{Coh}}_{T,\mathrm{abp}}^{\mathrm{FT}}\rangle$ (panel (a)), $\langle {\mathrm{Coh}}_{T,\mathrm{abp}}^{\mathrm{WT}}\rangle$ (panel (b)), $\langle {\mathrm{PSI}}_{T,\mathrm{abp}}^{\mathrm{HT}}\rangle$ (panel (c)) and $\langle {\mathrm{PSI}}_{T,\mathrm{abp}}^{\mathrm{WT}}\rangle$ (panel (d)). We used higher statistics as in Fig. 8.