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refers to a cytoarchitecturally defined portion of the retrosplenial area of the cerebral cortex. In the human it is a narrow band located in the isthmus of the cingulate gyrus. Cytoarchitecturally it is bounded internally by the area 26 of Brodmann (human) and externally by the area 30 of Brodmann (human) ( Brodmann-1909 ). Brodmann found area 29 in the lemur, a prosimian but failed to find it in the guenon, a cercopithecus more closely related to the macaque ( Brodmann-1909 ). Vogt has reported it in the macaque ( Vogt-1987 ).
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