- Brodmann area 22
Brodmann area 22 is one of Brodmann's
cytologically defined regions of the brain. It is involved in auditory processing.
Brodmann area 22 is a region of the human
brain(the 22nd numbered Brodmann area). On the left side of the brain this area helps with generation and understanding of individual words. On the right side of the brain it helps tell the difference between melody, pitch, and sound intensity. Researchers believe this part of the brain is active in processing language.
This area is also known as superior temporal area 22, and it refers to a subdivision of the cytoarchitecturally defined temporal region of
cerebral cortex. In the human it corresponds approximately to the lateral and caudal two thirds of the superior temporal gyrus. It is bounded rostrally by the temporopolar area 38(H), medially by the posterior transverse temporal area 42(H), ventrocaudally by the middle temporal area 21and dorsocaudally by the supramarginal area 40(H) and the angular area 39(H) (Brodmann-1909).
The posterior section of Brodmann area 22 is home to
Wernicke's area(most commonly in the left hemisphere only).
Brodmann area 22 is a subdivision of the cerebral cortex of the
guenondefined on the basis of cytoarchitecture. It is cytoarchitecturally homologous to the superior temporal area 22 of the human (Brodmann-1909). Distinctive features (Brodmann-1905): compared to Brodmann area 21-1909 the cortical thickness of area 22 is greater; cell density is reduced overall and the internal granular layer (IV) is even less developed with fewer cells; there is no detectable boundary between the internal pyramidal layer (V) and the multiform layer (VI); as in area 21, the ganglion cells of layer V are numerous and are arrayed adjacent to its boundary with layer IV, but they are plumper and more pyramidal in shape; the polymorphic cells of the multiform layer (VI) become gradually more numerous as one goes deeper and gives way to a wide sublayer 6b of fusiform cells as one approaches the boundary of the cortex with the subcortical white matter.
* For Neuroanatomy of the superior temporal area 22 visit [http://braininfo.rprc.washington.edu/Scripts/ancilcentraldirectory.aspx?ID=75 BrainInfo]
* For Neuroanatomy of Brodmann area 22 visit [http://braininfo.rprc.washington.edu/Scripts/ancilcentraldirectory.aspx?ID=1055 BrainInfo]
List of regions in the human brain
Wikimedia Foundation. 2010.
Look at other dictionaries:
Brodmann area 10 — Brodmann area 10, or BA10, is part of the frontal cortex in the human brain. BA10 encompasses the most anterior part of the frontal cortex, known as the frontopolar region. This area is believed to play a part in strategic processes involved in… … Wikipedia
Brodmann area 11 — is one of Brodmann s cytologically defined regions of the brain. It is involved in planning, reasoning, and decision making.HumanBrodmann area 11, or BA11, is part of the frontal cortex in the human brain. BA11 covers the medial part of the… … Wikipedia
Brodmann area 23 — (BA23) is a region in the brain corresponding to some portion of the posterior cingulate cortex. It lies between Brodmann area 30 and Brodmann area 31 and is located on the medial wall of the cingulate gyrus between the callosal sulcus and the… … Wikipedia
Brodmann area 7 — is one of Brodmann s cytologically defined regions of the brain. It is involved in locating objects in space. It serves as a point of convergence between vision and proprioception to determine where objects are in relation to parts of the… … Wikipedia
Brodmann area 5 — is one of Brodmann s cytologically defined regions of the brain. It is involved in somatosensory processing.HumanBrodmann area 5 is part of the parietal cortex in the human brain. It is situated immediately posterior to the primary somatosensory… … Wikipedia
Brodmann area 15 — Brodmann s Area 15 is one of Brodmann s subdivisions of the cerebral cortex in the brain. Area 15 was defined by Brodmann in the guenon monkey, but he found no equivalent structure in humans. However, functional imaging experiments have found… … Wikipedia
Brodmann area 26 — is the name for a small part of the brain.HumanIn the human this area is called ectosplenial area 26. It is a cytoarchitecturally defined portion of the retrosplenial region of the cerebral cortex. It is a narrow band located in the isthmus of… … Wikipedia
Brodmann area 39 — Brodmann area 39, or BA39, is part of the parietalcortex in the human brain. BA39 encompasses the angular gyrus, lying near to the junction of temporal, occipital and parietal lobes.This area is also known as angular area 39 (H). It corresponds… … Wikipedia
Brodmann area 25 — (BA25) is an area in the cerebral cortex of the brain and delineated based on its cytoarchitectonic characteristics. It is also called the subgenual area or area subgenualis . It is the 25th Brodmann area defined by Korbinian Brodmann (thus its… … Wikipedia
Brodmann area 13 — is a subdivision of the cerebral cortex as defined on the guenon monkey and on the basis of cytoarchitecture. Along with Brodmann area 14 and 15, Brodmann area 13 is found only in primates and no equivalent structure exists in… … Wikipedia