Research Article

Functional Topography of Human Corpus Callosum: An fMRI Mapping Study

Figure 2

Activation evoked by taste stimulation in patient M.C. Bilateral cortical activation in the frontoparietal operculum (not shown) was seen in this subject, who also displayed a callosal focus ((a)1, green arrow). Fibers arising from the activated cortex cross through the anterior CC ((a)2, yellow arrow), (b) and (c) activation foci evoked in the splenium by taste stimuli in patients P.F. and L.M., respectively. No callosal fibers connecting taste areas crossed this splenium. On DTI images, a thin white line outlines the spared CC ((a)2). Numbers on each brain represent the Talairach coordinates ( , , ) of each focus (green arrows).