Constantinescu, AO;
O'Reilly, JX;
Behrens, TEJ;
(2016)
Organizing conceptual knowledge in humans with a gridlike code.
Science
, 352
(6292)
pp. 1464-1468.
10.1126/science.aaf0941.
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Abstract
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.
| Type: | Article |
|---|---|
| Title: | Organizing conceptual knowledge in humans with a gridlike code |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1126/science.aaf0941 |
| Publisher version: | http://doi.org/10.1126/science.aaf0941 |
| Language: | English |
| Additional information: | Copyright © 2016, American Association for the Advancement of Science. This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Science & Technology, Multidisciplinary Sciences, Science & Technology - Other Topics, SPATIAL NAVIGATION, MEMORY, BRAIN, CELLS, REPRESENTATION, FUTURE, CORTEX, SYSTEM, MAP |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > Clinical and Experimental Epilepsy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10043572 |
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