Walking is an innate human behavior that propels the body forward. Recent studies have investigated the creation of a walking sensation wherein, the body neither moves nor is forced to move. However, it is unclear which whole-body motions effectively induce the sensation of walking. Here, we show that passive whole-body motions, such as heave and/or yaw motions, produced by a motorized chair induced a sensation of walking for seated participants in virtual environments as if the participant were walking while viewing a virtual reality scene through a head-mounted display. Our findings suggest that the passive whole-body motions in the gravitational axis—and to a lesser extent in the yaw axis—provide a clear perception of pseudo-walking, but only with limited motion amplitudes, namely one-fourth or less than those of actual walking. In addition, we found a negative correlation between the scores of walking sensation and motion sickness.

中文翻译：

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被动全身运动在升沉和偏航方向产生的步行伪感觉

步行是人类与生俱来的一种推动身体向前的行为。最近的研究调查了步行感觉的产生，其中身体既不移动也不被迫移动。然而，目前尚不清楚哪些全身运动有效地诱发了行走的感觉。在这里，我们展示了由电动椅子产生的被动全身运动，例如升降和/或偏航运动，会引起虚拟环境中坐着的参与者的行走感，就好像参与者在通过虚拟现实场景观看虚拟现实场景时走路一样。头戴式显示器。我们的研究结果表明，重力轴上的被动全身运动 - 并且在偏航轴上的程度较小 - 提供了对伪行走的清晰感知，但仅具有有限的运动幅度，即四分之一或更少实际行走。此外，