Virtual Co-Embodiment: Evaluation of the Sense of Agency While Sharing the Control of a Virtual Body Among Two Individuals
Virtual Co-Embodiment: Evaluation of the Sense of Agency While Sharing the Control of a Virtual Body Among Two Individuals
复制标题
DOI：
10.1109/tvcg.2020.2999197
复制
发表时间：
2021-10-01
影响因子：
5.2
通讯作者：
Lecuyer, Anatole
中科院分区：
文献类型：
--
作者：
Fribourg, Rebecca;Ogawa, Nami;Lecuyer, Anatole
在这篇文章中，我们介绍了一个称为“虚拟共同体现”的概念，它使用户能够与另一个实体（例如，另一用户、机器人或自主代理）。我们描述了一个概念验证，其中两个用户可以沉浸在虚拟环境中的第一人称视角，可以有互补的控制水平（总，部分，或没有）超过一个共享的化身。此外，我们进行了一项实验，以调查用户的控制水平的影响，共享的化身和先验知识，他们的行动对用户的代理感和运动动作。结果表明，参与者善于估计他们的真实的控制水平，但当他们能够预测化身的动作时，他们会明显高估自己的代理感。此外，参与者执行类似的身体动作，而不管他们对化身的真实的控制。结果还显示，内部维度的控制点，这是一种人格特质，是负相关的用户的感知控制水平。综合结果在基于虚拟现实的培训和协作远程操作领域展开了一系列新的应用，用户将能够共享他们的虚拟身体。
In this article, we introduce a concept called "virtual co-embodiment", which enables a user to share their virtual avatar with another entity (e.g., another user, robot, or autonomous agent). We describe a proof-of-concept in which two users can be immersed from a first-person perspective in a virtual environment and can have complementary levels of control (total, partial, or none) over a shared avatar. In addition, we conducted an experiment to investigate the influence of users' level of control over the shared avatar and prior knowledge of their actions on the users' sense of agency and motor actions. The results showed that participants are good at estimating their real level of control but significantly overestimate their sense of agency when they can anticipate the motion of the avatar. Moreover, participants performed similar body motions regardless of their real control over the avatar. The results also revealed that the internal dimension of the locus of control, which is a personality trait, is negatively correlated with the user's perceived level of control. The combined results unfold a new range of applications in the fields of virtual-reality-based training and collaborative teleoperation, where users would be able to share their virtual body.