Previous studies showed that the vestibular system is crucial for multisensory integration, however, its contribution to bodily self-consciousness more specifically on full-body illusions is not well understood. Thus, the current study examined the role of visuo-vestibular conflict on a full-body illusion (FBI) experiment that was induced during a supine body position. In a mixed design experiment, 56 participants underwent through a full-body illusion protocol. During the experiment, half of the participants received synchronous visuo-tactile stimulation, and the other half received asynchronous visuo-tactile stimulation, while their physical body was lying in a supine position, but the virtual body was standing. Additionally, the contribution of individual sensory weighting strategies was investigated via the Rod and Frame task (RFT), which was applied both before (pre-FBI standing and pre-FBI supine) and after the full-body illusion (post-FBI supine) protocol. Subjective reports of the participants confirmed previous findings suggesting that there was a significant increase in ownership over a virtual body during synchronous visuo-tactile stimulation. Additionally, further categorization of participants based on their visual dependency (by RFT) showed that those participants who rely more on visual information (visual field dependents) perceived the full-body illusion more strongly than non-visual field dependents during the synchronous visuo-tactile stimulation condition. Further analysis provided not only a quantitative demonstration of full-body illusion but also revealed changes in perceived self-orientation based on their field dependency. Altogether, findings of the current study make further contributions to our understanding of the vestibular system and brought new insight for individual sensory weighting strategies during a full-body illusion.

先前的研究表明，前庭系统对于多感觉整合至关重要，但是，它对身体自我意识的贡献，更具体地说是全身幻觉，尚不清楚。因此，当前的研究检查了视觉-前庭冲突在仰卧体位期间诱发的全身错觉 (FBI) 实验中的作用。在一项混合设计实验中，56 名参与者接受了全身幻觉方案。实验过程中，一半的被试接受同步视触觉刺激，另一半接受异步视触觉刺激，身体仰卧，虚拟身体站立。此外，通过杆和框架任务（RFT）研究了个体感官加权策略的贡献，这在（前 FBI 站立和前 FBI 仰卧）和全身幻觉（后 FBI 仰卧）协议之前都适用。参与者的主观报告证实了之前的发现，表明在同步视觉触觉刺激期间，对虚拟身体的所有权显着增加。此外，根据他们的视觉依赖（通过 RFT）对参与者进行进一步分类表明，那些更多依赖视觉信息（视场依赖）的参与者在同步视觉触觉期间比非视场依赖者更强烈地感知全身错觉。刺激条件。进一步的分析不仅提供了全身幻觉的定量证明，而且还揭示了基于其场依赖性的感知自我取向的变化。共，