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<p><b>New page</b></p><div>[[file:Lobes_of_the_brain_NL.svg|thumb|left]] [[file:Posterior_Parietal_Lobe.jpg|thumb|left]] {{Short description|Region of the brain involved in the planning of movements and spatial reasoning}}<br />
{{Infobox brain<br />
| Name = Posterior parietal cortex<br />
| Latin = Cortex parietalis posterior<br />
| Image = <br />
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| Ispartof = [[Parietal lobe]]<br />
| Artery = [[Middle cerebral artery]]<br />
| Vein = <br />
| BrainInfoType = ancil<br />
| BrainInfoNumber = 103<br />
| MeshName = <br />
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| NeuroNames = <br />
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}}<br />
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The '''posterior parietal cortex''' ('''PPC''') is a region of the [[parietal lobe]] in the [[brain]] that plays a crucial role in the planning of movements, spatial reasoning, and attention. It is located posterior to the [[primary somatosensory cortex]] and is involved in integrating sensory information from various parts of the body, understanding spatial relationships, and coordinating movements.<br />
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==Anatomy==<br />
The posterior parietal cortex is situated in the [[parietal lobe]], which is one of the four major lobes of the [[cerebral cortex]]. The PPC itself can be divided into several subregions, including the [[superior parietal lobule]] and the [[inferior parietal lobule]]. These subregions are further divided into smaller areas, such as the [[Brodmann area 5]], [[Brodmann area 7]], [[Brodmann area 39]], and [[Brodmann area 40]].<br />
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==Functions==<br />
The posterior parietal cortex is involved in a variety of functions, including:<br />
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* **Spatial reasoning**: The PPC helps in understanding spatial relationships and the position of objects in space. This is crucial for tasks such as navigation and manipulating objects.<br />
* **Movement planning**: The PPC plays a role in the planning and coordination of movements. It integrates sensory information to guide motor actions.<br />
* **Attention**: The PPC is involved in directing attention to different parts of the visual field and is important for visual attention and perception.<br />
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==Clinical Significance==<br />
Damage to the posterior parietal cortex can result in several neurological conditions, including:<br />
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* **[[Hemineglect]]**: A condition where a person is unable to attend to one side of their visual field, often due to damage to the right PPC.<br />
* **[[Balint's syndrome]]**: A rare neurological condition characterized by difficulties in movement coordination and visual attention, often resulting from bilateral PPC damage.<br />
* **[[Apraxia]]**: A motor disorder caused by damage to the PPC, leading to difficulties in performing planned movements.<br />
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==Research==<br />
Ongoing research in neuroscience is focused on understanding the precise functions of the posterior parietal cortex and its role in various cognitive processes. Studies often use techniques such as [[functional magnetic resonance imaging]] (fMRI) and [[electrophysiology]] to investigate the activity of the PPC during different tasks.<br />
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==See also==<br />
* [[Parietal lobe]]<br />
* [[Primary somatosensory cortex]]<br />
* [[Brodmann area]]<br />
* [[Hemineglect]]<br />
* [[Balint's syndrome]]<br />
* [[Apraxia]]<br />
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==References==<br />
{{Reflist}}<br />
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[[Category:Parietal lobe]]<br />
[[Category:Neuroanatomy]]<br />
[[Category:Brain]]<br />
[[Category:Neuroscience]]<br />
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