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A Brodmann area is a region of the cerebral cortex, in the human or other primate brain, defined by its cytoarchitecture, or histological structure and organization of cells.
Brodmann area 18, or BA18, is part of the occipital cortex in the human brain.It accounts for the bulk of the volume of the occipital lobe. It is known as a "Visual Association Area" or V2 and is a first stage in processing or feature extraction of retinotopic images from V1.
Brodmann area 44, or BA44, is part of the frontal cortex in the human brain.Situated just anterior to premotor cortex and on the lateral surface, inferior to BA9.. This area is also known as pars opercularis (of the inferior frontal gyrus), and it refers to a subdivision of the cytoarchitecturally defined frontal region of cerebral cortex.
Brodmann area 12 is a subdivision of the cerebral cortex of the guenon defined on the basis of cytoarchitecture. [1] [2] It occupies the most rostral portion of the frontal lobe.
Cortical organization, especially for the sensory systems, is often described in terms of maps. [1] For example, sensory information from the foot projects to one cortical site and the projections from the hand target in another site.
Brodmann was born in Liggersdorf, Province of Hohenzollern, Kingdom of Prussia.He studied medicine in Munich, Würzburg, Berlin, and Freiburg, where he received his medical diploma in 1895.
Brodmann area 6 is a cytoarchitecturally defined portion of the frontal lobe of the guenon.Brodmann-1909 regarded it as topographically and cytoarchitecturally homologous to the human agranular frontal area 6 and noted that, in the monkey, area 4 is larger than area 6, whereas, in the human, area 6 is larger than area 4.
The term Brodmann area 8 refers to a cytoarchitecturally defined portion of the frontal lobe of the guenon.Located rostral to the arcuate sulcus, it was not considered by Brodmann-1909 to be topographically homologous to the intermediate frontal area 8 of the human.