Brodmann area 39

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Brodmann area 39
Brodmann area 39.png
Brodmann Cytoarchitectonics 39.png
Details
Identifiers
Latin area angularis
NeuroLex ID birnlex_1772
FMA 68636
Anatomical terms of neuroanatomy

Brodmann area 39, or BA39, is part of the parietal cortex in the human brain. BA39 encompasses the angular gyrus, lying near to the junction of temporal, occipital and parietal lobes.

Contents

This area is also known as angular area 39 (H). It corresponds to the angular gyrus surrounding the caudal tip of the superior temporal sulcus. It is bounded dorsally approximately by the intraparietal sulcus. In terms of its cytoarchitecture, it is bounded rostrally by the supramarginal area 40 (H), dorsally and caudally by the peristriate area 19, and ventrally by the occipitotemporal area 37 (H) (Brodmann-1909).

Function

Area 39 was regarded by Alexander Luria as a part of the parietal-temporal-occipital area, which includes Brodmann area 40, Brodmann area 19, and Brodmann area 37. Damage to the left Brodmann area 39 may result in dyslexia or in semantic aphasia. [1] Albert Einstein had less neurones (relative to glial cells) in this (left sided) area than normal. [1] The right Brodmann area 39 appears to play a role in body image because electrical stimulation of the right angular gyrus induces an 'out-of-body' experience. [2]

See also

Related Research Articles

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<span class="mw-page-title-main">Brodmann areas 35 and 36</span> Regions of the brains temporal cortex; compose the perirhinal cortex

Brodmann area 35, together with Brodmann area 36, comprise the perirhinal cortex. They are cytoarchitecturally defined temporal regions of the cerebral cortex.

<span class="mw-page-title-main">Inferior parietal lobule</span> Portion of the parietal lobe of the brain

The inferior parietal lobule lies below the horizontal portion of the intraparietal sulcus, and behind the lower part of the postcentral sulcus. Also known as Geschwind's territory after Norman Geschwind, an American neurologist, who in the early 1960s recognised its importance. It is a part of the parietal lobe.

<span class="mw-page-title-main">Superior longitudinal fasciculus</span> Association fiber tract of the brain

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References

  1. 1 2 Kantha, S.S. (February 1992). "Albert Einstein's dyslexia and the significance of Brodmann Area 39 of his left cerebral cortex". Med Hypotheses. 37 (2): 119–22. doi:10.1016/0306-9877(92)90052-e. PMID   1584096.
  2. Blanke, O. (Sep 2002). "Stimulating illusory own-body perceptions". Nature. 419 (6904): 269–70. doi:10.1038/419269a. PMID   12239558. S2CID   4427138.