Measuring the effects through time of the influence of visuomotor and visuotactile synchronous stimulation on a virtual body ownership illusion
Measuring the effects through time of the influence of visuomotor and visuotactile synchronous stimulation on a virtual body ownership illusion
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DOI：
10.1068/p7545
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发表时间：
2014-01-01
期刊：
影响因子：
1.7
通讯作者：
Slater, Mel
中科院分区：
文献类型：
--
作者：
Kokkinara, Elena;Slater, Mel
以前的研究已经考察了通过跨模式多感官刺激的特定组合拥有虚拟代理身体或身体部位的体验。视觉运动(Vm)和视觉触觉(VT)同步刺激都被证明对诱发身体所有权错觉很重要，每一种都是单独测试的，或者两者都联合测试。在这项研究中，我们比较了这两个跨模式相关性的相对重要性，当两者都在相同的沉浸式虚拟现实设置和相同的实验中提供。我们系统地操纵VT和VM的意外情况，以评估它们的相对作用和相互作用。此外，我们提出了一种新的方法来测量诱导的身体所有权错觉随着时间的推移，通过记录整个实验阶段所有权错觉的破裂(‘Break’)的报告。来自问卷调查和对错觉中断的分析的证据表明，虽然VM同步刺激对错觉的实现贡献最大，但两者之一的中断(通过异步刺激)对错觉中断的可能性同样有贡献。
Previous studies have examined the experience of owning a virtual surrogate body or body part through specific combinations of cross-modal multisensory stimulation. Both visuomotor (VM) and visuotactile (VT) synchronous stimulation have been shown to be important for inducing a body ownership illusion, each tested separately or both in combination. In this study we compared the relative importance of these two cross-modal correlations, when both are provided in the same immersive virtual reality setup and the same experiment. We systematically manipulated VT and VM contingencies in order to assess their relative role and mutual interaction. Moreover, we present a new method for measuring the induced body ownership illusion through time, by recording reports of breaks in the illusion of ownership ('breaks') throughout the experimental phase. The balance of the evidence, from both questionnaires and analysis of the breaks, suggests that while VM synchronous stimulation contributes the greatest to the attainment of the illusion, a disruption of either (through asynchronous stimulation) contributes equally to the probability of a break in the illusion.