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- Secondary_somatosensory_cortex abstract "The human secondary somatosensory cortex (S2, SII) is a region of cortex in the parietal operculum on the ceiling of the lateral sulcus.Region S2 was first described by Adrian in 1940, who found that feeling in cats' feet was not only represented in the primary somatosensory cortex (S1) but also in a second region adjacent to S1. In 1954, Penfield and Jasper evoked somatosensory sensations in human patients during neurosurgery by electrically stimulating the ceiling of the lateral sulcus, which lies adjacent to S1, and their findings were confirmed in 1979 by Woolsey et al. using evoked potentials and electrical stimulation. Functional neuroimaging studies have found S2 activation in response to light touch, pain, visceral sensation, and tactile attention.In monkeys, apes and hominids, including humans, region S2 is divided into several "areas". An area at the entrance to the lateral sulcus, adjoining the primary somatosensory cortex (S1), is called the parietal ventral (PV) area. Posterior to PV is the secondary somatosensory area (area S2, which must not be confused with "region S2" which designates the entire secondary somatosensory cortex, of which area S2 is a part). Deeper in the lateral sulcus lies the ventral somatosensory (VS) area, whose outer edge adjoins areas PV and S2 and inner edge adjoins the insular cortex. In humans, the secondary somatosensory cortex includes parts of Brodmann area (BA) 40 and 43.Areas PV and S2 both map the body surface. Functional neuroimaging in humans has revealed that in areas PV and S2 the face is represented near the entrance to the lateral sulcus, and the hands and feet deeper in the fissure. Individual neurons in areas PV and S2 receive input from wide areas of the body surface (they have large "receptive fields"), and respond readily to stimuli such as wiping a sponge over a large area of skin.Area PV connects densely with BA 5 and the premotor cortex. Area S2 is interconnected with BA 1 and densely so with BA 3b, and projects to PV, BA 7b, insular cortex, amygdala and hippocampus. Areas S2 in the left and right hemispheres are densely interconnected, and stimulation on one side of the body will activate area S2 in both hemispheres.".
- Secondary_somatosensory_cortex thumbnail Schematic_of_cortical_areas_involved_with_pain_processing_and_fMRI_cropped.jpg?width=300.
- Secondary_somatosensory_cortex wikiPageID "2399754".
- Secondary_somatosensory_cortex wikiPageLength "4330".
- Secondary_somatosensory_cortex wikiPageOutDegree "23".
- Secondary_somatosensory_cortex wikiPageRevisionID "666052114".
- Secondary_somatosensory_cortex wikiPageWikiLink Amygdala.
- Secondary_somatosensory_cortex wikiPageWikiLink Brodmann_area.
- Secondary_somatosensory_cortex wikiPageWikiLink Brodmann_area_1.
- Secondary_somatosensory_cortex wikiPageWikiLink Brodmann_area_3.
- Secondary_somatosensory_cortex wikiPageWikiLink Brodmann_area_40.
- Secondary_somatosensory_cortex wikiPageWikiLink Brodmann_area_43.
- Secondary_somatosensory_cortex wikiPageWikiLink Brodmann_area_5.
- Secondary_somatosensory_cortex wikiPageWikiLink Brodmann_area_7.
- Secondary_somatosensory_cortex wikiPageWikiLink Category:Neuroanatomy.
- Secondary_somatosensory_cortex wikiPageWikiLink Cerebral_cortex.
- Secondary_somatosensory_cortex wikiPageWikiLink Cerebral_hemisphere.
- Secondary_somatosensory_cortex wikiPageWikiLink Evoked_potential.
- Secondary_somatosensory_cortex wikiPageWikiLink Functional_neuroimaging.
- Secondary_somatosensory_cortex wikiPageWikiLink Hippocampus.
- Secondary_somatosensory_cortex wikiPageWikiLink Insular_cortex.
- Secondary_somatosensory_cortex wikiPageWikiLink Lateral_sulcus.
- Secondary_somatosensory_cortex wikiPageWikiLink Operculum_(brain).
- Secondary_somatosensory_cortex wikiPageWikiLink Parietal_operculum.
- Secondary_somatosensory_cortex wikiPageWikiLink Postcentral_gyrus.
- Secondary_somatosensory_cortex wikiPageWikiLink Premotor_cortex.
- Secondary_somatosensory_cortex wikiPageWikiLink Primary_somatosensory_cortex.
- Secondary_somatosensory_cortex wikiPageWikiLink Receptive_field.
- Secondary_somatosensory_cortex wikiPageWikiLink File:Schematic_of_cortical_areas_involved_with_pain_processing_and_fMRI_cropped.jpg.
- Secondary_somatosensory_cortex wikiPageWikiLinkText "Secondary somatosensory cortex".
- Secondary_somatosensory_cortex wikiPageWikiLinkText "secondary somatosensory cortex".
- Secondary_somatosensory_cortex wikiPageWikiLinkText "secondary".
- Secondary_somatosensory_cortex hasPhotoCollection Secondary_somatosensory_cortex.
- Secondary_somatosensory_cortex wikiPageUsesTemplate Template:Reflist.
- Secondary_somatosensory_cortex subject Category:Neuroanatomy.
- Secondary_somatosensory_cortex hypernym Region.
- Secondary_somatosensory_cortex type Settlement.
- Secondary_somatosensory_cortex comment "The human secondary somatosensory cortex (S2, SII) is a region of cortex in the parietal operculum on the ceiling of the lateral sulcus.Region S2 was first described by Adrian in 1940, who found that feeling in cats' feet was not only represented in the primary somatosensory cortex (S1) but also in a second region adjacent to S1.".
- Secondary_somatosensory_cortex label "Secondary somatosensory cortex".
- Secondary_somatosensory_cortex sameAs Corteccia_somatosensoriale_secondaria.
- Secondary_somatosensory_cortex sameAs m.0c3v15k.
- Secondary_somatosensory_cortex sameAs Q13217355.
- Secondary_somatosensory_cortex sameAs Q13217355.
- Secondary_somatosensory_cortex wasDerivedFrom Secondary_somatosensory_cortex?oldid=666052114.
- Secondary_somatosensory_cortex depiction Schematic_of_cortical_areas_involved_with_pain_processing_and_fMRI_cropped.jpg.
- Secondary_somatosensory_cortex isPrimaryTopicOf Secondary_somatosensory_cortex.