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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. [1]

Contents

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.[2]

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.[3]

Notes and References

  1. ^ subgenual area 25. braininfo.rprc.washington.edu, retrieved November 18, 2006.
  2. ^ area 25 of Brodmann-1909. braininfo.rprc.washington.edu, retrieved November 19, 2006.
  3. ^ Deep Brain Stimulation for Treatment-Resistant Depression neuron.org, March 3, 2005. Retrieved November 18, 2006.

See also

v • d • e
Brain: telencephalon (cerebrum, cerebral cortex, cerebral hemispheres)
Primary sulci/fissuresMedial longitudinal, Lateral, Central, Parietoöccipital, Calcarine, Cingulate, Callosal Collateral fissure
Frontal lobePrecentral gyrus (Primary motor cortex, 4), Precentral sulcus, Superior frontal gyrus/Frontal eye fields (6, 8, 9), Middle frontal gyrus (46), Inferior frontal gyrus (44-Pars opercularis, 45-Pars triangularis), Orbitofrontal cortex (10, 11, 12, 47)
Parietal lobeSomatosensory cortex (Primary (1, 2, 3, 43), Secondary (5)), Precuneus (7m), Parietal lobules (Arcuate fasciculus/Superior (7l), Inferior (40)), Angular gyrus (39), Intraparietal sulcus, Marginal sulcus
Occipital lobePrimary visual cortex (17), Cuneus, Lingual gyrus, 18, 19 - Lateral occipital sulcus
Temporal lobePrimary auditory cortex (41, 42), Superior temporal gyrus (38, 22), Middle temporal gyrus (21), Inferior temporal gyrus (20), Fusiform gyrus (37) Medial temporal lobe (Amygdala, Hippocampus, Parahippocampal gyrus (27, 28, 34, 35, 36)
Cingulate cortex/gyrusSubgenual area (25), anterior cingulate (24, 32, 33), Posterior cingulate (23, 31), Retrosplenial cortex (26, 29, 30), Supracallosal gyrus
white matter tractsCorpus callosum (Splenium, Genu, Rostrum, Tapetum), Septum pellucidum, Internal capsule, Corona radiata, External capsule, Olfactory tract, Fornix (Commissure of fornix), Anterior commissure, Posterior commissure Terminal stria Superior and Inferior longitudinal fasciculus, uncinate fasciculus, cingulum, Inferior occipitofrontal fasciculus
Basal gangliaStriatum (Putamen,Caudate nucleus, Nucleus accumbens), Globus pallidus, Claustrum, Subthalamic nucleus, Substantia nigra
OtherInsular cortex Olfactory bulb, Anterior olfactory nucleus Septal nuclei Basal optic nucleus of Meynert
Some categorizations are approximations, and some Brodmann areas span gyri.
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Brodmann_area_25". A list of authors is available in Wikipedia.
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