Michel Charles, Velasco Carlos, Salgado-Montejo Alejandro, Spence Charles
Department of Experimental Psychology, University of Oxford, UK.
Perception. 2014;43(8):818-24. doi: 10.1068/p7733.
We report two experiments, based on a novel variant of the Rubber Hand Illusion (RHI), in which tactile stimulation is referred to an artificial (out-of-body) tongue. In the experiments reported here the participant's tongue was stimulated while they looked at a mirrored dummy tongue. On average, the participants agreed with the statement that they felt as if they had been touched in the location where they saw the rubber tongue being touched (experiment 1), thus demonstrating visual capture. When the external tongue was illuminated with a laser pointer (experiment 2), a significant proportion of the participants reported feeling either tactile or thermal stimulation on their own tongue. These results therefore demonstrate that the multisensory integration of visual, tactile, and proprioceptive information that gives rise to the RHI can be extended to the tongue (a body part that is rarely seen directly).
我们报告了两项基于橡皮手错觉（RHI）新变体的实验，其中触觉刺激被归因于人造（体外）舌头。在此报告的实验中，参与者看着一面镜子中的假舌头时，其舌头受到了刺激。平均而言，参与者认同他们感觉自己好像在看到橡皮舌头被触摸的位置受到了触摸（实验1），从而证明了视觉捕获。当用激光笔照射外部舌头时（实验2），相当一部分参与者报告称自己的舌头有触觉或热刺激感。因此，这些结果表明，产生橡皮手错觉的视觉、触觉和本体感觉信息的多感官整合可以扩展到舌头（一个很少直接看到的身体部位）。
