The term area a24c' refers to the part of the anterior midcingulate cortex located in the banks of the cingulate sulcus bounding the anterior cingulate gyrus. Defined on the basis of internal structure and location, it is found in the human and the macaque. In both it is bounded ventrally by area a24b'. In the human it is bounded dorsally by area 32pr ; the macaque has no area 32pr. It is sometimes named differently in the human than in the macaque. In that case, it is simply area 24c'. In the human, but not the macaque, it is divided into two parts, area a24c'v and area a24c'd ( Vogt-2012 ).