Intraparietal sulcus

Infobox Brain
Name = PAGENAME
Latin = sulcus intraparietalis
GraySubject = 189
GrayPage = 822

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Caption = Lateral surface of left cerebral hemisphere, viewed from the side. (Intraparietal sulcus visible at upper right, running horizontally.)


Caption2 = Principal fissures and lobes of the cerebrum viewed laterally. (Fissures not labeled, but parietal lobe is colored yellow.)
IsPartOf = Parietal lobe
Components =
Artery =
Vein =
Acronym = IPS
BrainInfoType = hier
BrainInfoNumber = 79
MeshName =
MeshNumber =
DorlandsPre = 12768887
DorlandsSuf = s_28
The intraparietal sulcus (IPS) is located on the lateral surface of the parietal lobe, and consists of an oblique and a horizontal portion. The IPS contains a series of functionally distinct subregions that have been intensively investigated using both single cell neurophysiology in primates [Colby, C.E., & Goldberg, M.E. (1999). Space and attention in parietal cortex. "Annual Review of Neuroscience, 22", 319–349.] [Andersen, R.A. (1989). Visual and eye movement functions of the posterior parietal cortex. "Annual Review of Neuroscience, 12", 377–403.] and human functional neuroimaging [Culham, J.C. & Kanwisher, N.G. (2001) Neuroimaging of cognitive functions in human parietal cortex. "Current Opinion in Neurobiology, 11", 157-63.] . Its principal functions are related to perceptual-motor coordination (for directing eye movements and reaching) and visual attention.

The IPS is also thought to play a role in other functions, including processing symbolic numerical information [cite journal | author = Cantlon J, Brannon E, Carter E, Pelphrey K | title = Functional imaging of numerical processing in adults and 4-y-old children. | journal = PLoS Biol | volume = 4 | issue = 5 | pages = e125 | year = 2006 | pmid = 16594732 | doi = 10.1371/journal.pbio.0040125 [http://biology.plosjournals.org/perlserv/?request=get-document&doi=10.1371/journal.pbio.0040125 link] ] , visuospatial working memory [ Todd JJ & Marois, R (2004). Capacity limit of visual short-term memory in human posterior parietal cortex. Nature, 428, 751-754 ] and interpreting the intent of others. [cite journal | author = Grafton, Hamilton | title = Dartmouth Study Finds How The Brain Interprets The Intent Of Others. | journal = Science Daily | year = 2006 |url=http://www.sciencedaily.com/releases/2006/02/060216191651.htm]

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References

External links

* [http://defiant.ssc.uwo.ca/Jody_web/fMRI4Dummies/cortical_sulci.htm Illustrations at ssc.uwo.ca]
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