Prab at 19:12, 16 March 2025

2025-03-16T19:12:20Z

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'''Brodmann area 29''' (BA29), also known as the '''retrosplenial cortex''', is a region of the [[cerebral cortex]] located in the [[posterior cingulate cortex]]. It is part of the [[limbic system]] and plays a role in various cognitive and emotional processes. This area was first described by Korbinian Brodmann in the early 20th century, who mapped the cerebral cortex and divided it into numbered regions based on their cytoarchitectonic characteristics.

==Function==
BA29 is involved in a variety of functions, including spatial navigation, memory consolidation, and the processing of emotionally significant memories. It is also implicated in the default mode network (DMN), a network of brain regions that shows increased activity when the mind is at rest and not focused on the outside world. The retrosplenial cortex has connections with the [[hippocampus]], [[thalamus]], and other areas of the limbic system, facilitating its role in memory and navigation.

==Anatomy==
Located in the medial aspect of the cerebral hemisphere, BA29 is part of the retrosplenial region of the posterior cingulate cortex. It is bordered by other Brodmann areas, including [[Brodmann area 30]] (BA30) and [[Brodmann area 23]] (BA23), which are also part of the posterior cingulate cortex. The exact boundaries and connections of BA29 can vary among individuals.

==Clinical Significance==
Alterations in the function or structure of BA29 have been associated with various neurological and psychiatric conditions. For example, abnormalities in this area have been linked to Alzheimer's disease, depression, and schizophrenia. Given its role in memory and emotional processing, changes in BA29 activity or connectivity may contribute to the symptoms observed in these conditions.

==Research==
Ongoing research aims to further elucidate the specific functions of BA29, its connections with other brain regions, and its involvement in neurological and psychiatric disorders. Advanced imaging techniques, such as functional magnetic resonance imaging (fMRI) and positron emission tomography (PET), are commonly used to study the retrosplenial cortex and its role in the human brain.

==See Also==
* [[Cerebral cortex]]
* [[Limbic system]]
* [[Posterior cingulate]]
* [[Default mode network]]

[[Category:Brodmann areas]]
[[Category:Cerebral cortex]]
[[Category:Limbic system]]

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Brodmann area 29 - Revision history

Prab at 19:12, 16 March 2025

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