Brodmann area 9

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Brodmann area 9
Details
Identifiers
Latinarea frontalis granularis
NeuroNames1024
NeuroLex IDbirnlex_1740
FMA68606
Anatomical terms of neuroanatomy

Brodmann area 9, or BA9, refers to a cytoarchitecturally defined portion of the frontal cortex in the brain of humans and other primates. Its cytoarchitecture is referred to as granular due to the concentration of granule cells in layer IV.[1] It contributes to the dorsolateral and medial prefrontal cortex.

Functions

The area is involved in short term memory,[2] evaluating recency,[3] overriding automatic responses,[4] verbal fluency,[5] error detection,[6] auditory verbal attention,[7] inferring the intention of others,[8] inferring deduction from spatial imagery,[9] inductive reasoning,[10] attributing intention,[11] sustained attention involved in counting a series of auditory stimuli,[12] and displays lower levels of energy consumption in individuals suffering from bipolar disorder.[13]

The area found on the left hemisphere is at least partially responsible for empathy,[14] idioms,[15][16] processing pleasant and unpleasant emotional scenes,[17] self criticisms[18] and attention to negative emotions.[19]

On the right hemisphere the region is involved in attributing intention,[20] theory of mind,[21] suppressing sadness,[22] working memory,[23][24][25] spatial memory,[26][27] recognition,[28][29][30] recall,[29][31][32] recognizing the emotions of others,[33] planning,[34] calculation,[35][36] semantic and perceptual processing of odors,[37] religiosity,[38] and attention to positive emotions.[19]

Guenon

Brodmann area 9 also exists in the frontal lobe of the

granular layer (II) is narrow, with small numbers of sparsely distributed granule cells.[39]

Image

  • Animation.
    Animation.
  • front view.
    front view.
  • Lateral view.
    Lateral view.
  • Medial view.
    Medial view.

See also

References

  1. ^ Vasković, Jana (2023-11-03), Cytoarchitecture of cerebral cortex, Kenhub GmbH
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  35. PMID 12914254. Archived from the original
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  39. ^  This article incorporates text available under the CC BY 3.0 license.[unreliable source?] "BrainInfo". Archived from the original on December 7, 2013. Retrieved 2013-12-03.{{cite web}}: CS1 maint: bot: original URL status unknown (link)

External links