Fractionating dead reckoning: role of the compass, odometer, logbook, and home base establishment in spatial orientation.
Fractionating dead reckoning: role of the compass, odometer, logbook, and home base establishment in spatial orientation.
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分段航位推算：指南针、里程表、航海日志和基地建立在空间定向中的作用。
DOI：
10.1007/s00114-008-0410-z
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
Winter,ShawnS
中科院分区：
文献类型：
--
作者：
Wallace,DouglasG;Martin,MeganM;Winter,ShawnS
老鼠使用多种信息源来保持空间定向。尽管之前的工作主要集中在老鼠对环境线索的使用上，但越来越多的研究表明，老鼠也会使用自我运动线索来组织导航。这篇综述考察了对自然发生行为的运动学分析在多大程度上提供了对基于航位推算的导航过程的洞察。这项工作支持了独立系统在处理汇聚在海马体上的自我运动线索方面的作用。指南针系统参与从自我运动线索中获取方向信息；而里程计系统则参与从自我运动线索中获取距离信息。在向外运动的路径中，海马体的功能类似于日志，来自指南针和里程表的唯一信息被用来得出路径到开始运动的点的方向和距离。最后，家庭基地的建立可以在每次旅行后重新设置这个系统，并将环境线索锚定到自我运动线索上。自然行为和运动学分析的结合已被证明是研究空间定向的神经基础的可靠范例。
Rats use multiple sources of information to maintain spatial orientation. Although previous work has focused on rats’ use of environmental cues, a growing number of studies have demonstrated that rats also use self-movement cues to organize navigation. This review examines the extent that kinematic analysis of naturally occurring behavior has provided insight into processes that mediate dead-reckoning-based navigation. This work supports a role for separate systems in processing self-movement cues that converge on the hippocampus. The compass system is involved in deriving directional information from self-movement cues; whereas, the odometer system is involved in deriving distance information from self-movement cues. The hippocampus functions similar to a logbook in that outward path unique information from the compass and odometer is used to derive the direction and distance of a path to the point at which movement was initiated. Finally, home base establishment may function to reset this system after each excursion and anchor environmental cues to self-movement cues. The combination of natural behaviors and kinematic analysis has proven to be a robust paradigm to investigate the neural basis of spatial orientation.