This research investigated the effects of virtual displays on kinematic parameters during direct pointing at a virtual target. Two virtual displays, three egocentric distances, and three indices of difficulty (IDs) were the independent variables considered in the study. Twelve participants (M = 29.8 ± 3.45 years of age) with normal visual acuity performed a pointing movement in the two VR displays, a stereoscopic widescreen display (SWD) and a head-mounted display (HMD). The movement data were compiled using a motion system. The outcomes revealed that peak velocity and reaction time differed significantly between the SWD and HMD conditions; peak velocity was higher and reaction time was shorter with the SWD than with the HMD. Nonetheless, the effective movement time and confirmation time were not significantly different between the two VR displays. In addition, the distance judgment accuracies of the HMD and SWD were 96% and 86%, respectively; distance was underestimated in the HMD and overestimated in the SWD. Moreover, both peak velocity and reaction time were significantly lower at high ID than at low and medium IDs. The results suggested that using an SWD could be more effective and efficient than an HMD for restoring motor function in upper and lower limbs. On the other hand, an HMD might be appropriate for applications which require exocentric distance judgment precision, such as architecture or medical visualization. Moreover, such findings provide valuable information for developers and designers of human interfaces and applications in virtual reality.

这项研究调查了在直接指向虚拟目标时虚拟显示对运动学参数的影响。该研究考虑了两个虚拟显示，三个以自我为中心的距离和三个难度指数（ID）。十二名参与者（中号 年龄= 29.8±3.45岁），具有正常视力的两个VR显示器，一个立体宽屏显示器（SWD）和一个头戴式显示器（HMD）都进行了指向运动。使用运动系统编辑运动数据。结果表明，SWD和HMD条件之间的峰值速度和反应时间存在显着差异。与HMD相比，SWD的峰值速度更高，反应时间更短。尽管如此，两个VR显示器之间的有效移动时间和确认时间没有显着差异。此外，HMD和SWD的距离判断准确度分别为96％和86％；HMD中的距离被低估了，而SWD中的距离被高估了。此外，高ID下的峰速度和反应时间均显着低于中低ID下的峰速度和反应时间。结果表明，使用SWD可以比HMD更有效地恢复上肢和下肢的运动功能。另一方面，HMD可能适合需要外心距离判断精度的应用，例如建筑或医学可视化。此外，这些发现为虚拟现实中的人机界面和应用程序的开发人员和设计人员提供了有价值的信息。