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refers to one of four subdivisions of area 47 in the orbital gyri of the human cerebral cortex. Composed of granular cortex, it is defined on the basis of multiple stains for internal structure. Located in the medial part of the ventral surface of the lateral orbital gyrus, it is bounded laterally by area 47/12l, medially by area 13l, caudally by area 47/12s, and rostrally by area 47/12r and area 11l. For the relations of this segmentation and terminology to others, see Ongur-2003.
The equivalent area in the macaque is area 12m (macaque). As granular prefrontal cortex, it has no equivalent in the rat ( Wallis-2012 ).
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