You Make Me Sick! The Effect of Stairs on Presence, Cybersickness, and Perception of Embodied Conversational Agents
You Make Me Sick! The Effect of Stairs on Presence, Cybersickness, and Perception of Embodied Conversational Agents
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DOI：
10.1109/vr55154.2023.00071
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发表时间：
2023-03
期刊：
影响因子：
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通讯作者：
Samuel Ang;Amanda Fernandez;Michael Rushforth;J. Quarles
中科院分区：
文献类型：
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作者：
Samuel Ang;Amanda Fernandez;Michael Rushforth;J. Quarles
虚拟现实（VR）技术的应用范围很广。其中许多都涉及到一个具体化的会话代理（ECA），一个与用户交换信息的虚拟人。不幸的是，由于晕屏现象，许多用户仍然无法接触虚拟现实技术：沉浸在模拟环境中时可能出现恶心和头痛等一系列负面症状。许多因素被认为会影响用户的晕屏程度，但这些因素如何影响用户对ECA的看法却知之甚少。在这项研究中，我们研究了虚拟楼梯的影响，这是一个与晕机程度增加有关的因素。我们招募了39名参与者来完成模拟机场体验。这包括一个简单的导航任务，然后用西班牙语与虚拟机场海关人员进行简短的对话。参与者完成了两次体验，一次是穿过平坦的走廊，一次是穿过一系列的楼梯。我们收集了自我报告的晕机评分、存在感和对ECA的感知。我们还收集了心率和皮肤电反应的生理数据。结果表明，虚拟楼梯增加了用户的晕机程度，降低了他们对ECA的感知真实感，但增加了他们的存在感。
Virtual reality (VR) technologies are used in a diverse range of applications. Many of these involve an embodied conversational agent (ECA), a virtual human who exchanges information with the user. Unfortunately, VR technologies remain inaccessible to many users due to the phenomenon of cybersickness: a collection of negative symptoms such as nausea and headache that can appear when immersed in a simulation. Many factors are believed to affect a user's level of cybersickness, but little is known regarding how these factors may influence a user's opinion of an ECA. In this study, we examined the effects of virtual stairs, a factor associated with increased levels of cybersickness. We recruited 39 participants to complete a simulated airport experience. This involved a simple navigation task followed by a brief conversation with a virtual airport customs agent in Spanish. Participants completed the experience twice, once walking across flat hallways, and once traversing a series of staircases. We collected self-reported ratings of cybersickness, presence, and perception of the ECA. We additionally collected physiological data on heart rate and galvanic skin response. Results indicate that the virtual staircases increased user level's of cybersickness and reduced their perceived realism of the ECA, but increased levels of presence.