We developed a virtual road crossing assessment tool called iVRoad - immersive Virtual Road, which allows to put the patient into realistic road crossing situations and to record various parameters that can be used to quantify unilateral spatial neglect. We present a study with 18 stroke patients in which we evaluate our system with respect to usability, satisfaction, sense of presence and possible occurring cybersickness symptoms. Unilateral spatial neglect is a cognitive disturbance, often occurring after right hemispheric stroke. Conventional neuropsychological tests, such as paper-and-pencil tests, for assessing unilateral spatial neglect, often lack sensitivity. Especially in mild forms, symptoms can be seen in everyday life, but are hard to detect in formal testing. We examined patients with and without unilateral spatial neglect in order to identify parameters that could be feasible to separate these patient groups.

Using everyday life tasks as a diagnostic instrument, however, is challenging because it is time-consuming, hard to control and to quantify. Computer-aided diagnostic systems are promising for analysing the behaviour of patients in detail. Modern virtual reality technology allows to place the patient in realistic situations. Especially situations in which patients often have difficulties or that are too dangerous in reality can be assessed with VR.

我们开发了一个名为iVRoad的虚拟道路交叉口评估工具- 沉浸式虚拟道路，这允许将患者置于现实的过马路情况并记录可用于量化单侧空间忽视的各种参数。我们对 18 名中风患者进行了一项研究，在该研究中，我们评估了我们的系统的可用性、满意度、存在感和可能发生的网络病症状。单侧空间忽视是一种认知障碍，通常发生在右半球中风后。用于评估单侧空间忽视的传统神经心理学测试，例如纸笔测试，通常缺乏敏感性。尤其是轻症，日常生活中可以看到症状，但在正式检测中很难发现。我们检查了有和没有单侧空间忽视的患者，以确定可以分离这些患者组的可行参数。

然而，将日常生活任务用作诊断工具具有挑战性，因为它耗时、难以控制和量化。计算机辅助诊断系统有望详细分析患者的行为。现代虚拟现实技术允许将患者置于现实情况中。尤其是在患者经常遇到困难或现实中过于危险的情况下，可以使用 VR 进行评估。