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The entorhinal cognitive map is attracted to goals

Boccara, Charlotte N., Nardin, Michele, Stella, Federico, O'Neill, Joseph and Csicsvari, Jozsef 2019. The entorhinal cognitive map is attracted to goals. Science 363 (6434) , pp. 1443-1447. 10.1126/science.aav4837

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Grid cells with their rigid hexagonal firing fields are thought to provide an invariant metric to the hippocampal cognitive map, yet environmental geometrical features have recently been shown to distort the grid structure. Given that the hippocampal role goes beyond space, we tested the influence of nonspatial information on the grid organization. We trained rats to daily learn three new reward locations on a cheeseboard maze while recording from the medial entorhinal cortex and the hippocampal CA1 region. Many grid fields moved toward goal location, leading to long-lasting deformations of the entorhinal map. Therefore, distortions in the grid structure contribute to goal representation during both learning and recall, which demonstrates that grid cells participate in mnemonic coding and do not merely provide a simple metric of space.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Psychology
Publisher: American Association for the Advancement of Science
ISSN: 0036-8075
Date of First Compliant Deposit: 15 April 2019
Date of Acceptance: 6 February 2019
Last Modified: 16 Feb 2021 11:51

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