Spatial signals are prevalent within the hippocampus and its neighboring regions. It is generally accepted that these signals are defined with respect to the external world (i.e., a world-centered, or allocentric, frame of reference). Recently, evidence of egocentric processing (i.e., self-centered, defined relative to the subject) in the extended hippocampal system has accumulated. These results support the idea that egocentric sensory information, derived from primary sensory cortical areas, may be transformed to allocentric representations that interact with the allocentric hippocampal system. We propose a framework to explain the implications of the egocentric-allocentric transformations to the functions of the medial temporal lobe memory system.

中文翻译：

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啮齿动物大脑中空间的自我中心和同心中心表示。

空间信号普遍存在于海马及其附近区域。公认这些信号是相对于外部世界（即，以世界为中心或同心的参考系）定义的。近来，在扩展的海马系统中，以自我为中心的加工（即，以自我为中心，相对于受试者定义）的证据已经积累。这些结果支持这样的想法，即从原代感觉皮层区域获得的自我中心感觉信息可以转换为与同心中心海马系统相互作用的同心中心表示。我们提出了一个框架来解释自我中心-allocentric转换对内侧颞叶记忆系统的功能的影响。