Figure 5:

Histograms for voxel-wise fitted onset time, time-to-peak and full-width at half-maximum for the 4783 voxels in which the fit for all three IR types converged. These data indicate that a pool of voxels shows clearly faster response onset in CBV(w) fMRI than BOLD fMRI. Time to peak is also faster for CBV fMRI albeit correcting for residual BOLD diminished this difference. Uncorrected CBVw data show smaller response width, however correction for residual BOLD largely increases response width to the level of BOLD data.