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Control of rodent and human spatial navigation by room and apparatus cues

机译:通过房间和设备线索控制啮齿动物和人类空间导航

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摘要

A growing body of literature indicates that rats prefer to navigate in the direction of a goal in the environment (directional responding) rather than to the precise location of the goal (place navigation). This paper provides a brief review of this literature with an emphasis on recent findings in the Morris water task. Four experiments designed to extend this work to humans in a computerized, virtual Morris water task are also described. Special emphasis is devoted to how directional responding and place navigation are influenced by room and apparatus cues, and how these cues control distinct components of navigation to a goal.Experiments 1 and 2 demonstrate that humans, like rats, perform directional responses when cues from the apparatus are present, while Experiment 3 demonstrates that place navigation predominates when apparatus cues are eliminated. In Experiment 4, an eyetracking system measured gaze location in the virtual environment dynamically as participants navigated from a start point to the goal.Participants primarily looked at room cues during the early segment of each trial, but primarily focused on the apparatus as the trial progressed, suggesting distinct, sequential stimulus functions. Implications for computational modeling of navigation in the Morris water task and related tasks are discussed.
机译:越来越多的文献表明,老鼠更喜欢在环境中朝目标的方向导航(定向响应),而不是朝目标的精确位置导航(位置导航)。本文简要回顾了这些文献,重点介绍了莫里斯水任务中的最新发现。还描述了旨在将这项工作扩展到计算机化的虚拟莫里斯水任务中的四个实验。特别强调的是方向响应和位置导航如何受到房间和设备提示的影响,以及这些提示如何控制通向目标的导航的不同组成部分。实验1和2证明,与老鼠一样,人类会从目标提示中执行方向响应。存在设备,而实验3演示了在消除设备提示后,地方导航占主导地位。在实验4中,当参与者从起点导航到目标时,眼动追踪系统会动态地测量虚拟环境中的凝视位置。参与者在每个试验的早期阶段主要观察房间提示,但在试验进行时主要关注设备,暗示了独特的,连续的刺激功能。讨论了莫里斯水任务和相关任务中导航计算模型的含义。

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