The posterior parietal cortex is the region behind the primary somatosensory cortex, comprising the superior and inferior parietal lobules. It combines vision, touch and body position to guide attention and movement.
| Location | Parietal lobe behind the postcentral sulcus, above and below the intraparietal sulcus |
|---|---|
| Parts |
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| Connections |
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| Blood Supply | Middle cerebral artery; Anterior cerebral artery (medial surface) |
Creates a map of the body and surrounding space, directs attention and plans reaching and grasping.
Right-sided damage often causes neglect of the left side of space and the body. Damage on both sides can cause Balint syndrome. Left-sided damage can cause apraxia and difficulties with calculation and writing.
Ignoring one side of space after posterior parietal damage, usually right-sided.
Difficulty reaching accurately for objects under visual guidance.
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