MOBIUS-STRIP-LIKE COLUMNAR FUNCTIONAL CONNECTIONS ARE REVEALED IN SOMATO-SENSORY RECEPTIVE FIELD CENTROIDS.
Receptive fields of neurons in the forelimb region of areas 3b and 1 of primary somatosensory cortex, in cats and monkeys, were mapped using extracellular recordings obtained sequentially from nearly radial penetrations. Locations of the field centroids indicated the presence of a functional system,...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2014-10-01
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| Series: | Frontiers in Neuroanatomy |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fnana.2014.00119/full |
| _version_ | 1828420163092873216 |
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| author | James Joseph Wright Paul David Bourke Oleg Vyachesslavovich Favorov |
| author_facet | James Joseph Wright Paul David Bourke Oleg Vyachesslavovich Favorov |
| author_sort | James Joseph Wright |
| collection | DOAJ |
| description | Receptive fields of neurons in the forelimb region of areas 3b and 1 of primary somatosensory cortex, in cats and monkeys, were mapped using extracellular recordings obtained sequentially from nearly radial penetrations. Locations of the field centroids indicated the presence of a functional system, in which cortical homotypic representations of the limb surfaces are entwined in three-dimensional Mobius-strip-like patterns of synaptic connections. Boundaries of somatosensory receptive field in nested groups irregularly overlie the centroid order, and are interpreted as arising from the superposition of learned connections upon the embryonic order. Since the theory of embryonic synaptic self-organisation used to model these results was devised and earlier used to explain findings in primary visual cortex, the present findings suggest the theory may be of general application throughout cortex, and may reveal a modular functional synaptic system, which, only in some parts of the cortex, and in some species, is manifest as anatomical ordering into columns. |
| first_indexed | 2024-12-10T15:07:04Z |
| format | Article |
| id | doaj.art-d206dce9ab144941877c2338b5e01bce |
| institution | Directory Open Access Journal |
| issn | 1662-5129 |
| language | English |
| last_indexed | 2024-12-10T15:07:04Z |
| publishDate | 2014-10-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Neuroanatomy |
| spelling | doaj.art-d206dce9ab144941877c2338b5e01bce2022-12-22T01:44:01ZengFrontiers Media S.A.Frontiers in Neuroanatomy1662-51292014-10-01810.3389/fnana.2014.00119104473MOBIUS-STRIP-LIKE COLUMNAR FUNCTIONAL CONNECTIONS ARE REVEALED IN SOMATO-SENSORY RECEPTIVE FIELD CENTROIDS.James Joseph Wright0Paul David Bourke1Oleg Vyachesslavovich Favorov2University of Auckland Faculty of MedicineUniversity of Western AustraliaThe University of North Carolina at Chapel HillReceptive fields of neurons in the forelimb region of areas 3b and 1 of primary somatosensory cortex, in cats and monkeys, were mapped using extracellular recordings obtained sequentially from nearly radial penetrations. Locations of the field centroids indicated the presence of a functional system, in which cortical homotypic representations of the limb surfaces are entwined in three-dimensional Mobius-strip-like patterns of synaptic connections. Boundaries of somatosensory receptive field in nested groups irregularly overlie the centroid order, and are interpreted as arising from the superposition of learned connections upon the embryonic order. Since the theory of embryonic synaptic self-organisation used to model these results was devised and earlier used to explain findings in primary visual cortex, the present findings suggest the theory may be of general application throughout cortex, and may reveal a modular functional synaptic system, which, only in some parts of the cortex, and in some species, is manifest as anatomical ordering into columns.http://journal.frontiersin.org/Journal/10.3389/fnana.2014.00119/fullcortical columnCortical developmentneuromicrocircuitrysynaptic organizationcortical response propertiesS1 segregates. |
| spellingShingle | James Joseph Wright Paul David Bourke Oleg Vyachesslavovich Favorov MOBIUS-STRIP-LIKE COLUMNAR FUNCTIONAL CONNECTIONS ARE REVEALED IN SOMATO-SENSORY RECEPTIVE FIELD CENTROIDS. Frontiers in Neuroanatomy cortical column Cortical development neuromicrocircuitry synaptic organization cortical response properties S1 segregates. |
| title | MOBIUS-STRIP-LIKE COLUMNAR FUNCTIONAL CONNECTIONS ARE REVEALED IN SOMATO-SENSORY RECEPTIVE FIELD CENTROIDS. |
| title_full | MOBIUS-STRIP-LIKE COLUMNAR FUNCTIONAL CONNECTIONS ARE REVEALED IN SOMATO-SENSORY RECEPTIVE FIELD CENTROIDS. |
| title_fullStr | MOBIUS-STRIP-LIKE COLUMNAR FUNCTIONAL CONNECTIONS ARE REVEALED IN SOMATO-SENSORY RECEPTIVE FIELD CENTROIDS. |
| title_full_unstemmed | MOBIUS-STRIP-LIKE COLUMNAR FUNCTIONAL CONNECTIONS ARE REVEALED IN SOMATO-SENSORY RECEPTIVE FIELD CENTROIDS. |
| title_short | MOBIUS-STRIP-LIKE COLUMNAR FUNCTIONAL CONNECTIONS ARE REVEALED IN SOMATO-SENSORY RECEPTIVE FIELD CENTROIDS. |
| title_sort | mobius strip like columnar functional connections are revealed in somato sensory receptive field centroids |
| topic | cortical column Cortical development neuromicrocircuitry synaptic organization cortical response properties S1 segregates. |
| url | http://journal.frontiersin.org/Journal/10.3389/fnana.2014.00119/full |
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