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Abstract：
Multisensory integration plays a crucial role in building the sense of body ownership, i.e., the perceptual status of one\'s body for which the body is perceived as belonging to oneself. Temporal and spatial mismatching of visual and tactile signals coming from one\'s body can reduce ownership feelings towards the body and its parts, i.e., produce disownership feelings. Here, we investigated whether visuo-tactile conflict also affects the sensorimotor representation of the body in space (i.e., body schema) and the perception of the space around the body in terms of action potentiality (i.e., reaching space). In two experiments, body schema (Experiment 1) and reaching space (Experiment 2) were assessed before and after either synchronous or asynchronous visuo-tactile stimulation. Results showed that the asynchronous condition, provoking multisensory conflict, caused disownership over one\'s hand and concurrently affected the body schema and the reaching space. These findings indicate that body schema and reaching space could be dynamically shaped by the multisensory regularities that build up the sense of body ownership.
摘要：
多感官整合在建立身体主人翁意识中起着至关重要的作用，即，一个人的身体的知觉状态，身体被认为是属于自己的。来自身体的视觉和触觉信号的时间和空间不匹配可以减少对身体及其部位的所有权感觉，即，产生不当家作主的感觉。这里,我们调查了视觉触觉冲突是否也影响身体在空间中的感觉运动表现(即，身体图式)和身体周围空间在行动潜力方面的感知(即，到达空间)。在两个实验中，在同步或异步视觉触觉刺激之前和之后评估身体模式（实验1）和到达空间（实验2）。结果表明，在异步条件下，引发多感官冲突，导致对一个人的手不拥有，并同时影响身体模式和到达空间。这些发现表明，身体图式和到达空间可以通过建立身体所有权感的多感官规律动态地塑造。
