Successful navigation depends critically upon two broad categories of spatial navigation strategies that include allocentric and egocentric reference frames, relying on external or internal spatial information, respectively. As with older adults, aged rats show robust impairments on a number of different spatial navigation tasks. There is some evidence that these navigation impairments are accompanied by a bias toward relying on egocentric over allocentric navigation strategies. To test the degree to which young and aged animals utilize these two navigation approaches, a novel behavioral arena was used in which rats are trained to traverse a circular track and to stop at a learned goal location that is fixed with respect to a panorama of visual cues projected onto the surrounding walls. By instantaneously rotating the cues, allocentric and egocentric reference frames were put in direct and immediate conflict and goal navigation performance was assessed with respect to how accurately young and aged animals were able to utilize the rotated cues. Behavioral data collected from nine young and eight aged animals revealed that both age groups were able to update their navigation performance following cue rotation. Contrary to what was expected, however, aged animals showed more accurate overall goal navigation performance, stronger allocentric strategy use, and more evident changes in behavior in response to cue rotation compared to younger animals. The young rats appeared to mix egocentric and allocentric strategies for ICR task solution. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

中文翻译：

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环境线索瞬时旋转对年轻和老年大鼠导航准确性的不同影响。

成功的导航关键取决于两大类空间导航策略，包括分别依赖于外部或内部空间信息的非中心和自我中心参考系。与老年人一样，老年大鼠在许多不同的空间导航任务上表现出严重的障碍。有一些证据表明，这些导航障碍伴随着依赖自我中心而非异中心导航策略的偏见。为了测试年轻和年老动物利用这两种导航方法的程度，使用了一种新颖的行为竞技场，在该竞技场中训练老鼠穿过圆形轨道并停在相对于视觉全景固定的学习目标位置处。线索投射到周围的墙壁上。通过瞬时旋转线索，异中心和自我中心参考系被置于直接和立即的冲突中，并且根据年轻和年老动物能够如何准确地利用旋转线索来评估目标导航性能。从九只年轻动物和八只老年动物收集的行为数据显示，两个年龄段的动物都能够在提示旋转后更新其导航性能。然而，与预期相反，与年轻动物相比，老年动物表现出更准确的总体目标导航表现、更强的异中心策略使用以及对提示旋转的反应更明显的行为变化。年轻的老鼠似乎混合了自我中心和异体中心策略来解决 ICR 任务。（PsycInfo 数据库记录 (c) 2022 APA，保留所有权利）。