When we go for a walk with friends, we can observe an interesting effect: From step lengths to arm movements - our movements unconsciously align; they synchronize. Prior research found that this synchronization is a crucial aspect of human relations that strengthens social cohesion and trust. Generalizing from these findings in synchronization theory, we propose a dynamical approach that can be applied in the design of non-humanoid robots to increase trust. We contribute the results of a controlled experiment with 51 participants exploring our concept in a between-subjects design. For this, we built a prototype of a simple non-humanoid robot that can bend to follow human movements and vary the movement synchronization patterns. We found that synchronized movements lead to significantly higher ratings in an established questionnaire on trust between people and automation but did not influence the willingness to spend money in a trust game.
翻译：当我们与朋友散步时，我们可以观察到一个有趣的现象：从步长到手臂运动-我们的运动不知不觉地对齐，即同步。先前的研究发现，这种同步是人际关系中增强社会凝聚力和信任的关键方面。在同步理论的基础上提出了一种动态方法，可以应用于设计非人形机器人以增加信任。我们在一个受试者研究中探讨了我们的概念，研究共有51名参与者，应用了不同的运动同步模式设计了一款简单的非人型机器人原型。我们发现，同步运动可以显著提高人们对自动化系统的信任，但并不影响在信任游戏中的支出意愿。
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