IEEE Trans Haptics. 2024 Apr-Jun;17(2):292-301. doi: 10.1109/TOH.2023.3347351. Epub 2024 Jun 20.
With increasing use of computer applications and robotic devices in our everyday life, and with the advent of metaverse, there is an urgent need of developing new types of interfaces that facilitate a more intuitive interaction in physical and virtual space. In this work, we investigate the influence of the location of haptic feedback devices on embodiment of virtual hands and user load during an interactive pick-and-place task. To do this, we conducted a user study with a 3x2 repeated measure experiment design: feedback position is varied between the distal phalanx of the index finger and the thumb, the proximal phalanx of the index finger and the thumb, and the wrist. These conditions of feedback are tested with the stimuli applied synchronously to the participant in one case, and with an additional delay of 350 ms in the second case. The results show that the location of the haptic feedback device does not affect embodiment, whereas the delay, i.e., whether the feedback is applied synchronously or asynchronously, affects embodiment. This suggests that for pick-and-place tasks, haptic feedback devices can be placed on the user's wrist without compromising performance making the hands to remain free, allowing unobstructed hand visibility for precise motion tracking, thereby improving accuracy.
随着计算机应用程序和机器人设备在日常生活中的使用越来越多，以及元宇宙的出现，迫切需要开发新型接口，以便在物理和虚拟空间中实现更直观的交互。在这项工作中，我们研究了触觉反馈设备的位置对虚拟手的体现和用户在交互式拾取和放置任务中的负载的影响。为此，我们进行了一项具有 3x2 重复测量实验设计的用户研究：反馈位置在食指和拇指的远节指骨与近端指骨以及手腕之间变化。在一种情况下，将刺激物同步应用于参与者，在第二种情况下，将刺激物同步应用于参与者，同时延迟 350 毫秒。结果表明，触觉反馈设备的位置不会影响体现，而延迟，即反馈是同步还是异步应用，会影响体现。这表明，对于拾取和放置任务，可以将触觉反馈设备放置在用户的手腕上，而不会影响性能，使手保持自由，从而允许对手进行无障碍的视线跟踪，从而提高准确性。
