Integrating MEG, EEG and fMRI data

Passive listening to sounds from different locations
(example of simple superposition and of dipole seeding)
MEG allowed identification of a bilateral activation in
the Heschl’s gyrus, but no reliable localizations for the
superior temporal gyrus and the supramarginal gyrus
were obtained (sources too close)
The last two areas were identified by constraining the
sources in a cube with 4 mm side centered in the
corresponding fMRI activation.