The term area p24pr refers to a narrow strip of posterior midcingulate cortex in the caudal half of the anterior cingulate gyrus of the human. It is bounded ventrally by area 33pr and area 23d, dorsally by area 23c and area 24d, and rostrally by area a24pr. Defined in the human by multiple criteria, it is fMRI-activated in MOTOR CUE and SOCIAL RANDOM tasks. It is deactivated in FINGER TAP, TONGUE MOVE AND LANGUAGE STORY tasks. Other authors have referred to overlapping parts of the same topological area as p24' ( Glasser-2016 ). The macaque has an equivalent area p24', which has two parts: p24a' and area p24b'. The rat and mouse have an area 24a' and area 24b', which are not subdivided into a- and b-parts ( Vogt-2016 ).