The concept of embodiment has been used in multiple scenarios, but in cognitive neuroscience it normally refers to the comprehension of the role of one's own body in the cognition of everyday situations and the processes involved in that perception. Multisensory research is gradually embracing the concept of embodiment, but the focus has mostly been concentrated upon audiovisual integration. In two experiments, we evaluated how the likelihood of a perceived stimulus to be embodied modulates visuotactile interaction in a Simultaneity Judgement task. Experiment 1 compared the perception of two visual stimuli with and without biological attributes (hands and geometrical shapes) moving towards each other, while tactile stimuli were provided on the palm of the participants' hand. Participants judged whether the meeting point of two periodically-moving visual stimuli was synchronous with the tactile stimulation in their own hands. Results showed that in the hand condition, the Point of Subjective Simultaneity (PSS) was significantly more distant to real synchrony (60 ms after the Stimulus Onset Asynchrony, SOA) than in the geometrical shape condition (45 ms after SOA). In experiment 2, we further explored the impact of biological attributes by comparing performance on two visual biological stimuli (hands and ears), that also vary in their motor and visuotactile properties. Results showed that the PSS was equally distant to real synchrony in both the hands and ears conditions. Overall, findings suggest that embodied visual biological stimuli may modulate visual and tactile multisensory interaction in simultaneity judgements.

中文翻译：

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同步性的体现和多感觉感知：生物特征调节同时判断中的视觉和触觉多感觉相互作用。

实施例的概念已经在多种情况下使用，但是在认知神经科学中，它通常指的是理解自己的身体在日常情况的认知中以及与该感知有关的过程。多感官研究逐渐包含体现的概念，但重点主要集中在视听集成上。在两个实验中，我们评估了同时实施感知刺激的可能性如何调节触觉交互作用。实验1比较了两个视觉刺激的感知，有和没有生物学属性（手和几何形状）相互靠近，而在参与者的手掌上提供了触觉刺激。参与者判断两个周期性运动的视觉刺激的交汇点是否与他们手中的触觉刺激同步。结果表明，在手部情况下，主观同时点（PSS）与真实同步点（在刺激发作异步之后，SOA发生60毫秒）比在几何形状情况下（SOA之后的45毫秒）更远。在实验2中，我们通过比较两种视觉生物刺激（手和耳朵）的性能来进一步探讨了生物属性的影响，这两种视觉生物刺激的运动和视动特性也有所不同。结果表明，PSS在手和耳朵条件下都与真实同步距离相同。总体而言，研究结果表明，体现的视觉生物刺激可能会在同时性判断中调节视觉和触觉的多感官互动。