Brodmann mapped the cortex according to types of neurons and their density in different cortical layers.
Further suppose that the exclusivity assumption is violated, and that the functions are implemented in overlapping brain regions: A depends on areas 1 and 2; B depends on areas 1 and 3; C depends on areas 2 and 3.
Conversely, the typical Brodmannarea is differentially engaged in 40% of behavioral (cognitive, perceptual, emotive) domains.
Brodmannarea 47, or BA47, is part of the frontal cortex in the human brain.
It is inferior to areas BA10 and BA45, and lateral to BA11.
Cytoarchitectonically it is bounded caudally by the triangular area 45, medially by the prefrontal area11 of Brodmann-1909, and rostrally by the frontopolar area 10 (Brodmann-1909).
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