Brodmann area 40, or BA40, is part of the parietalcortex in the human brain. BA40 is in the area of the supramarginal gyrus, which lies at the posterior end of the lateral fissure, in the inferior lateral part of the parietal lobe. Image File history File links Brodmann area 40 File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... The parietal lobe is a lobe in the brain. ... Cerebral cortex - Wikipedia, the free encyclopedia /**/ @import /skins-1. ... Picture of a human brain generated from MRI data Sagittal slice from a fMRI scan of a human brain. ... Lateral sulcus The lateral sulcus (also called Sylvian fissure or lateral fissure) is one of the most prominent structures of the human brain. ...
This region, forming the superior bank of the sylvian fissure, as studied in the cat, contains the secondary somatosensory representation, 'S-II', and a second somatotopic representation (parietal ventral, or PV). Anatomically, primate S-II receives inputs from area 3 and area 1, and projects to PV and area 7. PV has projections to area 5 and premotor areas. Lateral sulcus The lateral sulcus (also called Sylvian fissure or lateral fissure) is one of the most prominent structures of the human brain. ... The postcentral gyrus is a prominent structure in the parietal lobe of the human brain and an important landmark. ... The postcentral gyrus is a prominent structure in the parietal lobe of the human brain and an important landmark. ... Categories: Stub | Cerebrum ... Brodmann area 5 is part of the parietal cortex in the human brain. ...
Function
Single cell recording in primates show neurons with larger receptive fields than primary somatosensory cortex, responding to bilateral tactile stimuli, and showing attentional modulation. In humans, PO is activated during somatosensory stimulation, texture discrimination tasks, and in motor tasks involving sensory feedback. It is also involved in tactile learning and memory, and may also perform co-ordinate transformations from the somatotopic to other spatial frames. The postcentral gyrus is a prominent structure in the parietal lobe of the human brain and an important landmark. ...
Brodmann assigned numbers to various brain regions by analyzing each area's cellular structure starting from the central sulcus [the boundary between the frontal and parietal lobes].
As you may notice, many of the areas that are involved in the same general cognitive functions are numbered sequentially (or almost).
Areas that perform the same tasks use essentially the same types of cells.
Cytoarchitecturally bounded rostrally by the preparietal area 5 and the caudal postcentral area 2; caudally by the peristriate area 19; and medially by the dorsal posterior cingulate area 31.
Cytoarchitecturally bounded dorsocaudally by the intermediate frontal area 8, caudally by the agranular frontal area 6, and ventrally by the frontopolar area 10, the middle frontal area 46 and the opercular area 44.
Cytoarchitecturally bounded on the rostral and lateral aspects of the hemisphere by the frontopolar area 10, the orbital area 47, and the triangular area 45; on the medial surface it is bounded dorsally by the area 12 and caudally by the subgenual area 25.
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