Eye movements reveal spatiotemporal dynamics of visually-informed planning in navigation.
Eye movements reveal spatiotemporal dynamics of visually-informed planning in navigation.
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DOI：
10.7554/elife.73097
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发表时间：
2022-05-03
期刊：
影响因子：
7.7
通讯作者：
Zhang, Hang
中科院分区：
文献类型：
--
作者：
Zhu, Seren;Lakshminarasimhan, Kaushik J.;Arfaei, Nastaran;Angelaki, Dora E.;Zhang, Hang
面向目标的导航被广泛理解为依赖于内部地图。虽然在许多情况下可能是这种情况，但人类倾向于在复杂，不熟悉的环境中依赖视觉。为了研究视觉引导导航过程中凝视的性质，我们让人类在不同难度的虚拟迷宫中导航到瞬时可见的目标，观察到他们在所有领域都采取了接近最佳的轨迹。通过分析参与者的眼球运动，我们深入了解了他们如何进行视觉规划。凝视的空间分布显示，环境的复杂性介导了一个惊人的权衡在何种程度上注意力是针对两个互补的方面的世界模型：奖励的位置和任务相关的过渡。凝视的时间演变揭示了对未来道路的快速、连续的展望，唤起了神经重放。这些研究结果表明，在导航过程中的凝视的时空特征显着塑造了独特的认知计算基础的现实世界，顺序决策。
Goal-oriented navigation is widely understood to depend upon internal maps. Although this may be the case in many settings, humans tend to rely on vision in complex, unfamiliar environments. To study the nature of gaze during visually-guided navigation, we tasked humans to navigate to transiently visible goals in virtual mazes of varying levels of difficulty, observing that they took near-optimal trajectories in all arenas. By analyzing participants’ eye movements, we gained insights into how they performed visually-informed planning. The spatial distribution of gaze revealed that environmental complexity mediated a striking trade-off in the extent to which attention was directed towards two complimentary aspects of the world model: the reward location and task-relevant transitions. The temporal evolution of gaze revealed rapid, sequential prospection of the future path, evocative of neural replay. These findings suggest that the spatiotemporal characteristics of gaze during navigation are significantly shaped by the unique cognitive computations underlying real-world, sequential decision making.