Hughes Benjamin P, Naeem Hassan N, Davidenko Nicolas
Psychology Department, University of California, Santa Cruz, Santa Cruz, 95064, USA.
Sci Rep. 2024 Dec 4;14(1):30214. doi: 10.1038/s41598-024-80778-4.
The current study sought to examine factors that affect vection (the illusory experience of self-motion in the absence of real motion), visually-induced motion sickness, and one's sense of presence in a passive virtual reality driving simulation by exposing participants to 60-s pre-recorded driving laps and recording their self-reported metrics as well as their head motion patterns during the laps. Faster virtual driving speed (average 120 mph vs. 60 mph) resulted in significantly higher ratings of vection and motion sickness. Reclined posture (30° back) was examined as a possible mitigating factor for sickness, but no significant effects were found. Expanding visual cues (representing forward self-motion) resulted in higher ratings of vection, motion sickness, and presence compared to contracting cues (representing reverse self-motion) and translational cues (representing lateral self-motion). When experiencing typical upright, world-aligned, forward-facing conditions, conformity to the median head motions along the yaw axis was associated with higher ratings of vection, motion sickness, and presence at slow speeds and with vection and presence at high speeds. These findings underscore the importance of head motion patterns as a metric for behavior and contribute to the general understanding of illusory self-motion perception.
本研究旨在通过让参与者观看60秒预先录制的驾驶圈，并记录他们在驾驶圈中的自我报告指标以及头部运动模式，来考察影响动景运动（在没有真实运动的情况下的自我运动错觉体验）、视觉诱发晕动病以及在被动虚拟现实驾驶模拟中的临场感的因素。更快的虚拟驾驶速度（平均120英里/小时与60英里/小时）导致动景运动和晕动病的评分显著更高。将斜躺姿势（向后30°）作为晕动病的一个可能缓解因素进行了研究，但未发现显著影响。与收缩线索（表示反向自我运动）和平移线索（表示横向自我运动）相比，扩展视觉线索（表示向前自我运动）导致动景运动、晕动病和临场感的评分更高。在经历典型的直立、与世界对齐、向前的条件时，在低速时，沿偏航轴与头部运动中位数的一致性与动景运动、晕动病和临场感的更高评分相关，在高速时与动景运动和临场感相关。这些发现强调了头部运动模式作为行为指标的重要性，并有助于对自我运动错觉感知的总体理解。
