Natural environments are represented by local maps of grid cells and place cells that are stitched together. The manner by which transitions between map fragments are generated is unknown. We recorded grid cells while rats were trained in two rectangular compartments, A and B (each 1 m × 2 m), separated by a wall. Once distinct grid maps were established in each environment, we removed the partition and allowed the rat to explore the merged environment (2 m × 2 m). The grid patterns were largely retained along the distal walls of the box. Nearer the former partition line, individual grid fields changed location, resulting almost immediately in local spatial periodicity and continuity between the two original maps. Grid cells belonging to the same grid module retained phase relationships during the transformation. Thus, when environments are merged, grid fields reorganize rapidly to establish spatial periodicity in the area where the environments meet.

中文翻译：

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在合并的环境中集成网格图。

自然环境由缝合在一起的网格单元和放置单元的局部地图表示。映射片段之间的过渡生成方式尚不清楚。我们记录了网格细胞，而大鼠则在两个矩形的隔间A和B（每一个1 m×2 m）中被训练，并被一堵墙隔开。一旦在每个环境中建立了独特的网格图，我们就删除了分区，并允许老鼠探索合并后的环境（2 m×2 m）。网格图案大部分沿盒子的远端壁保留。在靠近前一个分隔线的地方，各个网格字段改变了位置，几乎立即导致了两个原始地图之间局部的空间周期性和连续性。属于同一网格模块的网格单元在转换过程中保留了相位关系。因此，当环境合并时，