Brodmann area 25


Brodmann area 25

"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 name).BA25 is located in the cingulate region as a narrow band in the caudal portion of the subcallosal area adjacent to the paraterminal gyrus. The posterior parolfactory sulcus separates the paraterminal gyrus from BA25. Rostrally it is bound by the prefrontal area 11 of Brodmann. [ [http://braininfo.rprc.washington.edu/Scripts/ancilcentraldirectory.aspx?ID=90 subgenual area 25.] braininfo.rprc.washington.edu, retrieved November 18, 2006.]

History

Brodman described this area as it is labeled now in 1909. Originally in 1905, Brodman labeled the area as part of area 24. In 1909, he divided the area into area 24 and 25. [ [http://braininfo.rprc.washington.edu/Scripts/ancilcentraldirectory.aspx?ID=1043865377 area 25 of Brodmann-1909.] braininfo.rprc.washington.edu, retrieved November 19, 2006.]

Pathology

One study has noted that BA25 is metabolically overactive in treatment-resistant depression and has found that chronic deep brain stimulation in the white matter adjacent to the area is a successful treatment for some patients. [ [http://www.neuron.org/content/article/fulltext?uid=PIIS089662730500156X&highlight=mayberg&highlight=deep%20brain%20stimulation Deep Brain Stimulation for Treatment-Resistant Depression] neuron.org, March 3, 2005. Retrieved November 18, 2006.]

Notes and References

ee also

* Brodmann area
* List of regions in the human brain


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