Status: Bibliographieeintrag
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| Verfasst von: | Pérez Escobar, José Antonio [VerfasserIn]  |
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| | Kornienko, Olga [VerfasserIn] |
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| | Latuske, Patrick [VerfasserIn] |
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| | Köhler, Laura [VerfasserIn] |
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| | Allen, Kevin [VerfasserIn] |
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| Titel: | Visual landmarks sharpen grid cell metric and confer context specificity to neurons of the medial entorhinal cortex |
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| Verf.angabe: | José Antonio Pérez-Escobar, Olga Kornienko, Patrick Latuske, Laura Kohler, Kevin Allen |
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| E-Jahr: | 2016 |
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| Jahr: | 23 July 2016 |
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| Umfang: | 21 S. |
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| Fussnoten: | Published: 23 July 2016 ; Gesehen am 23.09.2020 |
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| Titel Quelle: | Enthalten in: eLife |
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| Ort Quelle: | Cambridge : eLife Sciences Publications, 2012 |
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| Jahr Quelle: | 2016 |
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| Band/Heft Quelle: | 5(2016), Artikel-Nummer e16937, 21 Seiten |
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| ISSN Quelle: | 2050-084X |
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| Abstract: | Neurons of the medial entorhinal cortex (MEC) provide spatial representations critical for navigation. In this network, the periodic firing fields of grid cells act as a metric element for position. The location of the grid firing fields depends on interactions between self-motion information, geometrical properties of the environment and nonmetric contextual cues. Here, we test whether visual information, including nonmetric contextual cues, also regulates the firing rate of MEC neurons. Removal of visual landmarks caused a profound impairment in grid cell periodicity. Moreover, the speed code of MEC neurons changed in darkness and the activity of border cells became less confined to environmental boundaries. Half of the MEC neurons changed their firing rate in darkness. Manipulations of nonmetric visual cues that left the boundaries of a 1D environment in place caused rate changes in grid cells. These findings reveal context specificity in the rate code of MEC neurons. |
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| DOI: | doi:10.7554/eLife.16937 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.7554/eLife.16937 |
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| | DOI: https://doi.org/10.7554/eLife.16937 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| Sach-SW: | border cells |
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| | grid cell |
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| | medial entorhinal cortex |
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| | navigation |
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| | path integration |
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| | speed cells |
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| K10plus-PPN: | 1733615229 |
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| Verknüpfungen: | → Zeitschrift |
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Visual landmarks sharpen grid cell metric and confer context specificity to neurons of the medial entorhinal cortex / Pérez Escobar, José Antonio [VerfasserIn]; 23 July 2016 (Online-Ressource)
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