Figure 1.

Different levels of connectivity. (a) A single structural connection is shown between 2 a priori-defined brain regions: the uncinated fasciculus, connecting the amygdala (blue) with the frontal cortex (red, regions schematically drawn). (b) Functional connectivity map with respect to a particular seed region, the prefrontal cortex (illustrated by the crosshair). (c) Whole-brain connectivity matrix derived from an anatomical atlas. Each matrix entry reflects the connectivity of 2 brain regions as shown in a. Each column (and row) of the connectivity matrix represents a connectivity map as given in b.