Measuring egocentric distance perception in virtual reality: Influence of methodologies, locomotion and translation gains
Measuring egocentric distance perception in virtual reality: Influence of methodologies, locomotion and translation gains
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DOI：
10.1371/journal.pone.0224651
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发表时间：
2019-10-31
期刊：
影响因子：
3.7
通讯作者：
Bengler, Klaus
中科院分区：
文献类型：
--
作者：
Maruhn, Philipp;Schneider, Sonja;Bengler, Klaus
虚拟现实已经成为研究人类行为的一种流行手段，包括行人在交通研究中的作用。因此，了解虚拟环境中的距离感知对于结果的解释至关重要，因为对复杂和动态交通场景的反应依赖于感知过程，从而允许对未来事件的正确预测。已经提出了许多量化感知距离的方法。虽然先前的研究表明所选择的方法会影响估计的准确性，但目前尚不清楚不同的估计如何依赖于不同感知模式提供的深度信息。在本研究中，比较了六种方法在虚拟城市景观中的应用。通过操纵视觉感知距离和实际步行距离的比值，研究了视觉和非视觉线索对受试者的影响。在30名参与者的重复测量设计中，观察到方法之间的显着差异，视觉引导行走和口头估计的误差最小。视觉与物理比率与低估程度之间存在线性关系，表明行走过程中的非视觉线索影响距离估计。这种关系主要体现在基于实际或想象的行走动作和口头估计的方法上。
Virtual reality has become a popular means to study human behavior in a wide range of settings, including the role of pedestrians in traffic research. To understand distance perception in virtual environments is thereby crucial to the interpretation of results, as reactions to complex and dynamic traffic scenarios depend on perceptual processes allowing for the correct anticipation of future events. A number of approaches have been suggested to quantify perceived distances. While previous studies imply that the selected method influences the estimates' accuracy, it is unclear how the respective estimates depend on depth information provided by different perceptual modalities. In the present study, six methodological approaches were compared in a virtual city scenery. The respective influence of visual and non-visual cues was investigated by manipulating the ratio between visually perceived and physically walked distances. In a repeated measures design with 30 participants, significant differences between methods were observed, with the smallest error occurring for visually guided walking and verbal estimates. A linear relation emerged between the visual-to-physical ratio and the extent of underestimation, indicating that non-visual cues during walking affected distance estimates. This relationship was mainly evident for methods building on actual or imagined walking movements and verbal estimates.