Spatial Cognitive Implications of Teleporting Through Virtual Environments
Spatial Cognitive Implications of Teleporting Through Virtual Environments
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DOI：
10.1037/xap0000263
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发表时间：
2020-09-01
影响因子：
2.6
通讯作者：
Gilbert, Stephen B.
中科院分区：
文献类型：
--
作者：
Cherep, Lucia A.;Lim, Alex F.;Gilbert, Stephen B.
远距传送是一种流行的界面，允许虚拟现实用户探索比可用步行空间更大的环境。当瞬间移动时，用户在虚拟环境中定位一个标记，并立即被传送，而没有任何自我运动提示。五个实验的目的是评估空间的认知后果的心灵传输，并确定环境线索，可以减轻这些成本。参与者在指向未标记的路径原点之前，通过遍历2个出站路径分支执行三角形完成任务。运动是通过步行或2个常见的实现瞬间移动接口的身体和运动之间的一致性通过虚拟环境的运动区分。在部分协调的心灵传输界面中，参与者心灵传输是为了平移（改变位置），但转动身体是为了旋转。在不和谐的传送界面中，参与者传送着平移和旋转。在所有5个实验中，不一致的心灵传输产生较大的错误比部分一致的心灵传输产生较大的错误比步行，反映了平移和旋转的自我运动线索的重要性。此外，几何边界（房间墙壁或围栏）是必要的，以减轻空间认知成本与心灵传输，和地标是有帮助的，只有在几何边界的情况下。
Teleporting is a popular interface to allow virtual reality users to explore environments that are larger than the available walking space. When teleporting, the user positions a marker in the virtual environment and is instantly transported without any self-motion cues. Five experiments were designed to evaluate the spatial cognitive consequences of teleporting and to identify environmental cues that could mitigate those costs. Participants performed a triangle completion task by traversing 2 outbound path legs before pointing to the unmarked path origin. Locomotion was accomplished via walking or 2 common implementations of the teleporting interface distinguished by the concordance between movement of the body and movement through the virtual environment. In the partially concordant teleporting interface, participants teleported to translate (change position) but turned the body to rotate. In the discordant teleporting interface, participants teleported to translate and rotate. Across all 5 experiments, discordant teleporting produced larger errors than partially concordant teleporting which produced larger errors than walking, reflecting the importance of translational and rotational self-motion cues. Furthermore, geometric boundaries (room walls or a fence) were necessary to mitigate the spatial cognitive costs associated with teleporting, and landmarks were helpful only in the context of a geometric boundary.