Graduate School of Information Science and Technology, The University of Tokyo, Tokyo, 1138656, Japan.
Information Technology Center, The University of Tokyo, Tokyo, 1138658, Japan.
Sci Rep. 2023 Sep 21;13(1):15759. doi: 10.1038/s41598-023-42589-x.
Illusory self-motion ("vection") has been used to present a sense of movement in virtual reality (VR) and other similar applications. It is crucial in vection research to present a stronger sense of movement. Bone-conducted vibration (BCV) is a small and generally acceptable method for enhancing the sense of movement in VR. However, its effects on vection have not been extensively studied. Here, we conducted two experiments to investigate the effect of BCV on the vection, which generates an upward sensation under the hypothesis that BCV stimulation to the mastoid processes causes noise in the vestibular system and enhances visually-induced self-motion perception. The experiments focused on the effects of BCV stimuli of different frequencies on the vection experience. The results suggested that 500 Hz BCV was more effective as noise to the vestibular system than other frequency BCVs and improved self-motion sensation. This study examines the effects of BCV with different frequencies on the vection experience and designs a theory for using BCV in VR.
虚幻运动感（“运动错觉”）已被用于虚拟现实（VR）和其他类似应用中，以产生运动感。在运动错觉研究中，呈现更强烈的运动感至关重要。骨传导振动（BCV）是一种较小且通常可接受的方法，可增强 VR 中的运动感。然而，其对运动错觉的影响尚未得到广泛研究。在这里，我们进行了两项实验来研究 BCV 对运动错觉的影响，假设 BCV 刺激乳突会在前庭系统中产生噪声，并增强视觉诱导的自我运动感知，从而产生向上的感觉。实验重点研究了不同频率的 BCV 刺激对运动错觉体验的影响。结果表明，500 Hz 的 BCV 对前庭系统的噪声比其他频率的 BCV 更有效，并且改善了自我运动感觉。本研究探讨了不同频率的 BCV 对运动错觉体验的影响，并为在 VR 中使用 BCV 设计了一种理论。
