Definition
Parietal cortex approximates the superior middle third of the cerebral cortex, occupying a portion of the two hemispheres situated below the crown of the head. The parietal cortex is positioned in front of the occipital lobe and behind the frontal lobe. The human parietal cortex can be subdivided into the postcentral and posterior parietal regions; the postcentral gyrus contains the primary somatosensory cortex or SI (Brodmann areas 3, 1, and 2), while the posterior parietal region is made up of the superior (Brodmann areas 5 and 7) and inferior parietal lobules (Brodmann areas 39 and 40), which are separated by the intraparietal sulcus (Fig. 1). Medial and underneath the parietal cortex, in the superior bank of the lateral sulcus, lies the parietal operculum, defined functionally as the secondary somatosensory cortex or SII.
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Duncan, G.H., Albanese, MC., Khoshnejad, M. (2013). PET and fMRI Imaging in Parietal Cortex (SI, SII, Inferior Parietal Cortex BA40). In: Gebhart, G.F., Schmidt, R.F. (eds) Encyclopedia of Pain. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-28753-4_3308
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DOI: https://doi.org/10.1007/978-3-642-28753-4_3308
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