This study investigated the effects of simulating self-motion via a head-mounted display (HMD) on standing postural sway and spatial presence. Standing HMD users viewed simulated oscillatory self-motion in depth. On a particular trial, this naso-occipital visual oscillation had one of four different amplitudes (either 4, 8, 12 or 16 m peak-to-peak) and one of four different frequencies (either 0.125, 0.25, 0.5 or 1 Hz). We found that simulated high amplitude self-oscillation (approximately 16 m peak-to-peak) at either 0.25 Hz or 0.5 Hz: 1) generated the strongest effects on postural sway; and 2) made participants feel more spatially present in the virtual environment. Our findings provide insight into the parameters of simulated self-motion that generate the strongest postural responses within virtual environments. These postural constraints have valuable implications for improving our understanding of sensory processes underlying the ergonomic experience of virtual environments simulated using HMDs.

本研究调查了通过头戴式显示器 (HMD) 模拟自我运动对站立姿势摇摆和空间存在的影响。站立的 HMD 用户深入查看了模拟的振荡自运动。在一次特定的试验中，这种鼻枕视觉振荡具有四种不同振幅中的一种（4、8、12 或 16 m 峰峰值）和四种不同频率中的一种（0.125、0.25、0.5 或 1 Hz） . 我们发现在 0.25 Hz 或 0.5 Hz 下模拟的高振幅自振荡（大约 16 m 峰峰值）：1) 对姿势摇摆产生最强的影响；2）让参与者在虚拟环境中感觉更有空间感。我们的研究结果提供了对模拟自运动参数的洞察，这些参数在虚拟环境中产生最强的姿势反应。