论文标题
共享的看法与个人感知不同：上下文依赖性的新外观
Shared perception is different from individual perception: a new look on context dependency
论文作者
论文摘要
人类感知是基于无意识的推断，其中感觉输入与先前的信息集成在一起。这种现象被称为上下文依赖性，有助于面对外部世界的不确定性，并在先前的经验上构建了预测。另一方面，人类的感知过程固有地是由社会互动塑造的。但是，上下文依赖性的机制如何影响到迄今为止未知。如果使用以前的经验 - 先验 - 在单个环境中是有益的，那么它可能代表了其他代理商可能没有相同先验的社会场景中的问题，从而在共享环境上造成了感知的错误。本研究解决了这个问题。我们研究了与人形机器人ICUB的互动环境中的上下文依赖性，该机器人是刺激示威者。参与者在两个条件下重现了机器人所示的长度：一个具有社交性的ICUB，另一个具有ICUB充当机械臂。机器人的不同行为显着影响了感知的先验使用。此外，社会机器人通过提高准确性并减少参与者的总体感知错误，从而对感知性能产生积极影响。最后，已观察到的现象是按照贝叶斯方法加深和探索共同感知概念的贝叶斯方法进行了建模的。
Human perception is based on unconscious inference, where sensory input integrates with prior information. This phenomenon, known as context dependency, helps in facing the uncertainty of the external world with predictions built upon previous experience. On the other hand, human perceptual processes are inherently shaped by social interactions. However, how the mechanisms of context dependency are affected is to date unknown. If using previous experience - priors - is beneficial in individual settings, it could represent a problem in social scenarios where other agents might not have the same priors, causing a perceptual misalignment on the shared environment. The present study addresses this question. We studied context dependency in an interactive setting with a humanoid robot iCub that acted as a stimuli demonstrator. Participants reproduced the lengths shown by the robot in two conditions: one with iCub behaving socially and another with iCub acting as a mechanical arm. The different behavior of the robot significantly affected the use of prior in perception. Moreover, the social robot positively impacted perceptual performances by enhancing accuracy and reducing participants overall perceptual errors. Finally, the observed phenomenon has been modelled following a Bayesian approach to deepen and explore a new concept of shared perception.
