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|Brain: Intraparietal sulcus|
|Lateral surface of left cerebral hemisphere, viewed from the side. (Intraparietal sulcus visible at upper right, running horizontally.)|
|Principal fissures and lobes of the cerebrum viewed laterally. (Fissures not labeled, but parietal lobe is colored yellow.)|
|Gray's||subject #189 822|
The lateral surface of the parietal lobe is cleft by a well-marked furrow, the intraparietal sulcus (IPS) of Turner, which consists of an oblique and a horizontal portion.
The IPS is involved in processing symbolic numerical information. A 2006 study by Jessica Cantlon et. al. concluded The IPS provides the neurobiological platform for nonsymbolic numerical processing in young children, then supports the expanding capacity for higher-math operations in adulthood.
The IPS is also involved in processing the Interprets the intent of others. A 2006 study by Scott Grafton and Antonia Hamilton has found that the IPS was strongly activated when the subject saw another person reach for an object that they want, like a cookie. "We were able to find the part of the brain involved in interpreting the goal of another person, even if no words are spoken," says Hamilton. 
- Cantlon J, Brannon E, Carter E, Pelphrey K (2006). Functional imaging of numerical processing in adults and 4-y-old children.. PLoS Biol 4 (5): e125. PMID 16594732. link
- Grafton, Hamilton (2006). Dartmouth Study Finds How The Brain Interprets The Intent Of Others.. Science Daily. [ http://www.sciencedaily.com/releases/2006/02/060216191651.htm link]
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
Human brain: forebrain (cerebrum · cerebral cortex · cerebral hemispheres, grey matter) (TA A14.1.09.002–240, 301–320, GA 9.818–826)
Long gyrus of insula · Short gyri of insula · Circular sulcus of insula
|Some categorizations are approximations, and some Brodmann areas span gyri.
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