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首页> 外文期刊>Disability and rehabilitation. Assistive technology. >A Virtual Reality avatar interaction (VRai) platform to assess residual executive dysfunction in active military personnel with previous mild traumatic brain injury: proof of concept
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A Virtual Reality avatar interaction (VRai) platform to assess residual executive dysfunction in active military personnel with previous mild traumatic brain injury: proof of concept

机译：虚拟现实化身交互（VRAI）平台，用于评估有活跃的军事人员残留行政功能障碍，以前温和的创伤性脑损伤：概念证明

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Purpose: This proof of concept study tested the ability of a dual task walking protocol using a recently developed avatar-based virtual reality (VR) platform to detect differences between military personnel post mild traumatic brain injury (mTBI) and healthy controls. Methods: The VR platform coordinated motion capture, an interaction and rendering system, and a projection system to present first (participant-controlled) and third person avatars within the context of a specific military patrol scene. A divided attention task was also added. A healthy control group was compared to a group with previous mTBI (both groups comprised of six military personnel) and a repeated measures ANOVA tested for differences between conditions and groups based on recognition errors, walking speed and fluidity and obstacle clearance. Results: The VR platform was well tolerated by both groups. Walking fluidity was degraded for the control group within the more complex navigational dual tasking involving avatars, and appeared greatest in the dual tasking with the interacting avatar. This navigational behaviour was not seen in the mTBI group. Conclusions: The present findings show proof of concept for using avatars, particularly more interactive avatars, to expose differences in executive functioning when applying context-specific protocols (here for the military).
机译：目的：这种概念研究证明测试了双任务步行协议的能力，使用最近开发的基于化身的虚拟现实（VR）平台，以检测军事人员后温和创伤性脑损伤（MTBI）和健康对照之间的差异。方法：VR平台协调运动捕获，交互和渲染系统，以及在特定军事巡逻场景的上下文中呈现第一（参与者控制）和第三人身的投影系统。还添加了分割的注意任务。将一个健康对照组与前一位MTBI（两组由六名军事人员组成的组）进行比较，并且重复措施基于识别误差，步行速度和流动性和障碍物的条件和群体之间的差异测试了Anova。结果：两组VR平台宽容良好。在涉及化身的更复杂的导航双重任务中，步行流动性在更复杂的导航双重任务中降级，并且在与交互化身的双重任务中出现了最大的。在MTBI组中没有看到该导航行为。结论：目前的研究结果显示了使用化身，特别是更具互动性的化身的概念证明，以在应用上下文专用协议时暴露执行功能的差异（此处为军队）。

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