Brodmann areas


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Brod·mann ar·e·as

areas of the cerebral cortex mapped on the basis of cytoarchitectural patterns. See: cerebral cortex.

The German physician Korbinian Brodmann (1868-1918) was diverted from plans to enter general practice by a long convalescence during which he worked at a sanatorium for nervous diseases. After advanced studies in neurology, neuroanatomy, pathology, and psychiatry, he began an investigation of the comparative anatomy of the mammalian cortex at the Neurobiological Laboratory of the University of Berlin. Earlier workers had divided the cortex into six principal layers on the basis of their proportions of pyramidal, stellate, and fusiform cells. Using the newly developed staining technique of Nissl, Brodmann distinguished about 50 zones of the cortex on the basis of subtle differences in cell type, size, density, and lamination, and correlated his anatomic findings with studies on localization of function in humans, subhuman primates, and other mammals. His cortical map and numbering system, published in 1909, became standard methods for distinguishing areas of cortex, and are still widely used by clinical neurologists and neurosurgeons. Although later workers have published revisions of his work, subdivided his areas, and substituted letters for his numbers, modern experimental methods have largely vindicated his cortical localizations, both anatomic and functional. see also figure at cerebral cortex.

Brod·mann ar·e·as

(brōd'mahn ar'ē-ăz)
Regions of the cerebral cortex distinguished on the basis of histologic differences and presumed differences in function.

Brodmann areas

(brōd′man″)
[Korbinian Brodmann, Ger. neurologist, 1868–1918]
The division of the cerebral cortex into 47 areas. This was originally done on the basis of cytoarchitectural characteristics, but the areas are now classified according to their functions.

Brodmann,

Korbinian, German neurologist, 1868-1918.
Brodmann area 41 - Synonym(s): primary auditory cortex
Brodmann area 44 - Synonym(s): Broca center
Brodmann areas - areas of cerebral cortex mapped out on the basis of cortical cytoarchitectural patterns.
References in periodicals archive ?
However, there are some difference in Brodmann areas 4, 6, 8, Brodmann areas 7, 39, 40, Brodmann areas 18, 19, 22 and Brodmann areas 13, 24, 32, 28.
In contrast, the rostral/ventral "affective area (corresponding to Brodmann areas 24a, 24b, 24c, 25, 32, 33) is linked to the limbic system and orbitofrontal regions.
Semi-quantitative analysis of perfusion of Brodmann areas in the differential diagnosis of cognitive impairment in Alzheimer's disease, fronto-temporal dementia and mild cognitive impairment.
Fisher (1998) discusses the dorsolateral prefrontal circuit which she believes originates in Brodmann areas 9 and 10 commencing on the lateral surface of the anterior frontal lobe.
The posterior bank of the central sulcus has three different Brodmann areas (3, 2, 1).
This MRI, taken from NeuroApps, shows the 3-planar views of the MRI, each plane overlaid with the Talairach and MNI coordinate grid together with outlines, annotations, and coloring of each fiber bundle (as determined by DTI), white matter radiation structures, and major grey matter and Brodmann areas.
The following PFC regions of interest (ROIs) were visually inspected and rated in coronal, saggital, and transaxial slices by two clinicians trained in neuroanatomy using the Mai Atlas of the Human Brain (Mai, Assheur & Paxinos 1997): the left and right poles (medial aspect of Brodmann area 10, anterior rostral aspect of Brodmann area 12); the left and right inferior orbits (Brodmann area 11); the left and right anterior-lateral PFC (comprised of Brodmann areas 9, 11, 45, 46, 47, and the lateral aspect of area 10); the left and right mid-lateral PFC (comprised of Brodmann areas 6, 8, and 44); and the left and right posterior frontal region (comprised of Brodmann areas 1,2,3,4, and 43).