Fig. 4From: Nonlinear estimation of BOLD signals with the aid of cerebral blood volume imagingEstimated BOLD signal (a) and reconstructed physiological states (b) for the maximally activated voxel of subject 1. For comparison, model estimation was also performed with the typically assumed value of \(V_0=0.02\). The real \(V_0\) value of this voxel was 0.0172. It is evident that differences in the estimated physiological states are relevant to deviations from the actual BVF valueBack to article page