Compared to the fMRI-constrained EEG/MEG source imaging, the EEG -informed fMRI analysis appears to be wholly different. In fact, both types of methods share an important commonality in their fundamental assumption – that is, the neuronal electrophysiological response is linearly correlated with the BOLD fMRI signal. To date, it is difficult to judge which method is superior to the other, although the EEG-informed fMRI analysis is formulated in a better posed manner than the fMRI-constrained source imaging.
