Path integration maintains spatial periodicity of grid cell firing in a 1D circular track - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Nature Communications Année : 2019

Path integration maintains spatial periodicity of grid cell firing in a 1D circular track

Résumé

Entorhinal grid cells are thought to provide a 2D spatial metric of the environment. In this study we demonstrate that in a familiar 1D circular track (i.e., a continuous space) grid cells display a novel 1D equidistant firing pattern based on integrated distance rather than travelled distance or time. In addition, field spacing is increased compared to a 2D open field, probably due to a reduced access to the visual cue in the track. This metrical modification is accompanied by a change in LFP theta oscillations, but no change in intrinsic grid cell rhythmicity, or firing activity of entorhinal speed and head-direction cells. These results suggest that in a 1D circular space grid cell spatial selectivity is shaped by path integration processes, while grid scale relies on external information.
Fichier principal
Vignette du fichier
s41467-019-08795-w.pdf (2.1 Mo) Télécharger le fichier
Origine Publication financée par une institution
Loading...

Dates et versions

hal-02025122 , version 1 (19-02-2019)

Licence

Identifiants

Citer

Pierre-Yves Jacob, Fabrizio Capitano, Bruno Poucet, Etienne Save, Francesca Sargolini. Path integration maintains spatial periodicity of grid cell firing in a 1D circular track. Nature Communications, 2019, 10 (1), ⟨10.1038/s41467-019-08795-w⟩. ⟨hal-02025122⟩
127 Consultations
56 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More