Organizing conceptual knowledge in humans with a gridlike code
It has been hypothesized that the brain organizes concepts into a mental map, allowing conceptual relationships to be navigated in a manner similar to that of space. Grid cells use a hexagonally symmetric code to organize spatial representations and are the likely source of a precise hexagonal symme...
| Main Authors: | , , |
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| Format: | Journal article |
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American Association for the Advancement of Science
2016
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| _version_ | 1797076579543678976 |
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| author | Constantinescu, A O'Reilly, J Behrens, T |
| author_facet | Constantinescu, A O'Reilly, J Behrens, T |
| author_sort | Constantinescu, A |
| collection | OXFORD |
| description | It has been hypothesized that the brain organizes concepts into a mental map, allowing conceptual relationships to be navigated in a manner similar to that of space. Grid cells use a hexagonally symmetric code to organize spatial representations and are the likely source of a precise hexagonal symmetry in the functional magnetic resonance imaging signal. Humans navigating conceptual two-dimensional knowledge showed the same hexagonal signal in a set of brain regions markedly similar to those activated during spatial navigation. This gridlike signal is consistent across sessions acquired within an hour and more than a week apart. Our findings suggest that global relational codes may be used to organize nonspatial conceptual representations and that these codes may have a hexagonal gridlike pattern when conceptual knowledge is laid out in two continuous dimensions. |
| first_indexed | 2024-03-07T00:05:45Z |
| format | Journal article |
| id | oxford-uuid:777cc417-0741-4329-9c55-7909ce426bf8 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T00:05:45Z |
| publishDate | 2016 |
| publisher | American Association for the Advancement of Science |
| record_format | dspace |
| spelling | oxford-uuid:777cc417-0741-4329-9c55-7909ce426bf82022-03-26T20:24:19ZOrganizing conceptual knowledge in humans with a gridlike codeJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:777cc417-0741-4329-9c55-7909ce426bf8Symplectic Elements at OxfordAmerican Association for the Advancement of Science2016Constantinescu, AO'Reilly, JBehrens, TIt has been hypothesized that the brain organizes concepts into a mental map, allowing conceptual relationships to be navigated in a manner similar to that of space. Grid cells use a hexagonally symmetric code to organize spatial representations and are the likely source of a precise hexagonal symmetry in the functional magnetic resonance imaging signal. Humans navigating conceptual two-dimensional knowledge showed the same hexagonal signal in a set of brain regions markedly similar to those activated during spatial navigation. This gridlike signal is consistent across sessions acquired within an hour and more than a week apart. Our findings suggest that global relational codes may be used to organize nonspatial conceptual representations and that these codes may have a hexagonal gridlike pattern when conceptual knowledge is laid out in two continuous dimensions. |
| spellingShingle | Constantinescu, A O'Reilly, J Behrens, T Organizing conceptual knowledge in humans with a gridlike code |
| title | Organizing conceptual knowledge in humans with a gridlike code |
| title_full | Organizing conceptual knowledge in humans with a gridlike code |
| title_fullStr | Organizing conceptual knowledge in humans with a gridlike code |
| title_full_unstemmed | Organizing conceptual knowledge in humans with a gridlike code |
| title_short | Organizing conceptual knowledge in humans with a gridlike code |
| title_sort | organizing conceptual knowledge in humans with a gridlike code |
| work_keys_str_mv | AT constantinescua organizingconceptualknowledgeinhumanswithagridlikecode AT oreillyj organizingconceptualknowledgeinhumanswithagridlikecode AT behrenst organizingconceptualknowledgeinhumanswithagridlikecode |