网格单元
网格
人口
计算机科学
生物系统
神经科学
生物
数学
几何学
医学
环境卫生
作者
Prannoy Chaudhuri-Vayalambrone,Michael E Rule,Marius Bauža,Marino Krstulovic,Pauline Kerekes,Stephen Burton,Timothy O’Leary,Julija Krupic
出处
期刊:Cell Reports
[Elsevier]
日期:2023-07-01
卷期号:42 (7): 112716-112716
被引量:2
标识
DOI:10.1016/j.celrep.2023.112716
摘要
Grid cells and place cells represent the spatiotemporal continuum of an animal’s past, present, and future locations. However, their spatiotemporal relationship is unclear. Here, we co-record grid and place cells in freely foraging rats. We show that average time shifts in grid cells tend to be prospective and are proportional to their spatial scale, providing a nearly instantaneous readout of a spectrum of progressively increasing time horizons ranging hundreds of milliseconds. Average time shifts of place cells are generally larger compared to grid cells and also increase with place field sizes. Moreover, time horizons display nonlinear modulation by the animal’s trajectories in relation to the local boundaries and locomotion cues. Finally, long and short time horizons occur at different parts of the theta cycle, which may facilitate their readout. Together, these findings suggest that population activity of grid and place cells may represent local trajectories essential for goal-directed navigation and planning.
科研通智能强力驱动
Strongly Powered by AbleSci AI