Spatial navigation is a complex cognitive process based on vestibular, proprioceptive, and visualcues that are integrated and processed by an extensive network of brain areas. The retrosplenial complex (RSC) is an integral part of coordination and translation between spatial reference frames. Previous studies have demonstrated that the RSC is active during a spatial navigation tasks. The specifics of RSC activity under various navigation loads, however, are still not characterized. This study investigated the local information processed by the RSC under various navigation load conditions manipulated by the number of turns in the physical navigation setup. The results showed that the local information processed via the RSC, which was reflected by the segregation network, was higher when the number of turns increased, suggesting that RSC activity is associated with the navigation task load. The present findings shed light on how the brain processes spatial information in a physical navigation task.

中文翻译：

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腓骨后分离反映了非卧床运动过程中的导航负荷

空间导航是基于前庭，本体感受和视觉提示的复杂认知过程，这些过程由广泛的大脑区域网络进行整合和处理。后脾复合物（RSC）是空间参考系之间协调和转换的必要组成部分。先前的研究表明，RSC在空间导航任务期间处于活动状态。但是，在各种导航负载下，RSC活动的具体细节仍未确定。这项研究调查了由RSC在各种导航负载条件下处理的本地信息，这些条件由物理导航设置中的转数控制。结果表明，当匝数增加时，隔离网络反映的通过RSC处理的本地信息会更高，建议RSC活动与导航任务负载相关联。目前的发现揭示了大脑在物理导航任务中如何处理空间信息。