A MODEL OF GRID CELLS INVOLVING EXTRA HIPPOCAMPAL PATH INTEGRATION, AND THE HIPPOCAMPAL LOOP

摘要: In this paper, we present a model for the generation of grid cells and emergence place from multimodal input to entorhinal cortex (EC). model, cell activity in dorsocaudal medial (dMEC) [28] results operation long-distance path integration system located outside hippocampal formation, presumably retrosplenial and/or parietal cortex. If connections between these structures dMEC are organized as modulo N operator, resulting neurons is pattern. Furthermore, robust high-resolution positional code can be built small set different if factors relatively prime. On other hand, broad visual MEC result information depending on view-field input. The merging EC dentate gyrus (DG) allows building precise "place cells" (e.g., whose maintained light suppressed short duration). Our supports our previous proposition that cell" transitions two successive states ("transition cells") rather than mere current locations. discuss possibility loop participates but not sufficient by itself. Finally, at time scale (which reset one next) would merged subiculum with CA3/CA1 "transition [22] provide feedback about action deep layer order predict recognition new animal location.