Superior parietal lobule

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Superior parietal lobule
Gray726 superior parietal lobule.png
Lateral surface of left cerebral hemisphere, viewed from the side. (Superior parietal lobule is shown in orange.)
Gray725 superior parietal lobule.png
Lateral surface of left cerebral hemisphere, viewed from above. (Superior parietal lobule is shown in orange.)
Details
Identifiers
Latin lobulus parietalis superior
NeuroNames 106
TA98 A14.1.09.130
TA2 5476
FMA 61899
Anatomical terms of neuroanatomy

The superior parietal lobule is bounded in front by the upper part of the postcentral sulcus, but is usually connected with the postcentral gyrus above the end of the sulcus. The superior parietal lobule contains Brodmann's areas 5 and 7.

Behind it is the lateral part of the parieto-occipital sulcus, around the end of which it is joined to the occipital lobe by a curved gyrus, the arcus parietooccipitalis. Below, it is separated from the inferior parietal lobule by the horizontal portion of the intraparietal sulcus.

The superior parietal lobule is involved with spatial orientation, [1] and receives a great deal of visual input as well as sensory input from one's hand. [2] In addition to spatial cognition and visual perception, it has also been associated with reasoning, working memory, and attention. [3]

It is also involved with other functions[ vague ] of the parietal lobe in general.

There are major white matter pathway connections with the superior parietal lobule such as the Cingulum, SLF I, superior parietal lobule connections of the Medial longitudinal fasciculus and other newly described superior parietal white matter connections. [4] [5]

Damage to the superior parietal lobule can cause contralateral astereognosis and hemispatial neglect. It is also associated with deficits on tests involving the manipulation and rearrangement of information in working memory, but not on working memory tests requiring only rehearsal and retrieval processes. [6]

Additional images

References

PD-icon.svgThis article incorporates text in the public domain from page 823 of the 20th edition of Gray's Anatomy (1918)

  1. ↑ Williams SM. "Superior parietal lobe". Sylvius Project. Pyramis Studios, Inc. Archived from the original on 26 June 2009.
  2. ↑ Gamberini M, Passarelli L, Filippini M, Fattori P, Galletti C (December 2021). "Vision for action: thalamic and cortical inputs to the macaque superior parietal lobule". Brain Structure & Function. 226 (9): 2951–2966. doi:10.1007/s00429-021-02377-7. PMC   8541979 . PMID   34524542.
  3. ↑ Wang J, Yang Y, Fan L, Xu J, Li C, Liu Y, et al. (January 2015). "Convergent functional architecture of the superior parietal lobule unraveled with multimodal neuroimaging approaches". Human Brain Mapping. 36 (1): 238–257. doi:10.1002/hbm.22626. PMC   4268275 . PMID   25181023.
  4. ↑ Kamali A, Sair HI, Radmanesh A, Hasan KM (September 2014). "Decoding the superior parietal lobule connections of the superior longitudinal fasciculus/arcuate fasciculus in the human brain". Neuroscience. 277: 577–583. doi:10.1016/j.neuroscience.2014.07.035. PMID   25086308. S2CID   24271580.
  5. ↑ Kamali A, Flanders AE, Brody J, Hunter JV, Hasan KM (January 2014). "Tracing superior longitudinal fasciculus connectivity in the human brain using high resolution diffusion tensor tractography". Brain Structure & Function. 219 (1): 269–281. doi:10.1007/s00429-012-0498-y. PMC   3633629 . PMID   23288254.
  6. ↑ Koenigs M, Barbey AK, Postle BR, Grafman J (November 2009). "Superior parietal cortex is critical for the manipulation of information in working memory". The Journal of Neuroscience. 29 (47): 14980–14986. doi:10.1523/JNEUROSCI.3706-09.2009. PMC   2799248 . PMID   19940193.
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