Fig. 7.

The accuracy of typically assumed forms of g₁(t). (a) is the same graph of sensitivity to flow perturbations shown in 5(a), but with matching $\raisebox{1ex}{$1$}\!\left/ \!\raisebox{-1ex}{${\tau }_c$}\right.$ values extracted using the models shown in Table 2. (b) shows the accuracy of the assumed forms of g₁(t) at determining the true $\raisebox{1ex}{$1$}\!\left/ \!\raisebox{-1ex}{${\tau }_c$}\right.$ value in 32 ROIs.