The term area a24pr refers to a narrow strip of anterior midcingulate cortex in the caudal half of the anterior cingulate gyrus of the human. It is bounded ventrally by area 33pr, dorsally by area p32pr, caudally by area p24pr and rostrally by area p24. Defined in the human by multiple criteria, it is fMRI-activated in MOTOR, MOTOR CUE and, in comparison to some other areas, LANGUAGE STORY tasks. It is deactivated in LANGUAGE MATH, RELATIONAL-MATCH, SOCIAL RANDOM, and in comparison with some other areas, 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 a24', which has two parts: a24a' and area a24b'. The rat and mouse have an area 24a' and area 24b', which are not subdivided into a- and b-parts ( Vogt-2016 ).