Fig. 1.

Boundaries for the ACC are illustrated. [1] The most rostral coronal plane containing the genu of the corpus callosum, [2] the most caudal coronal plain containing the anterior comissure, [3] the callosal sulcus, [4] the cingulate sulcus, and [5] the paracingulate sulcus. Within this area of dorsal ACC, volume was measured in the two ways; the one was “Whole ACC” volume which included both Brodmann’s area [BA] 24 and 32 (the area between [3] and [5]), and the other was “Partial ACC” volume which included only BA 24 (between [3] and [4]).