Can Wearable Haptic Devices Foster the Embodiment of Virtual Limbs?
Can Wearable Haptic Devices Foster the Embodiment of Virtual Limbs?
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DOI：
10.1109/toh.2018.2889497
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发表时间：
2019-07-01
影响因子：
2.9
通讯作者：
Prattichizzo, Domenico
中科院分区：
文献类型：
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作者：
Froehner, Jakob;Salvietti, Gionata;Prattichizzo, Domenico
增加存在感是虚拟现实研究的主要目标之一。一个关键的方面是用户能够将自己与外部虚拟世界区分开来。我们调查的假设是，可穿戴触觉在身体体验中起着重要的作用，从而有助于沉浸在虚拟环境中的用户。一个主题内的研究（n=32）比较的实施例的虚拟手与不同的实现方式的触觉反馈（力反馈，振动触觉反馈，没有触觉反馈）。参与者戴着一只手套，拇指和食指上有触觉反馈装置。他们被要求把虚拟立方体放在一个移动的虚拟目标上。触摸虚拟对象会导致振动反馈、力反馈或无反馈，这取决于条件。这些条件同时和异步提供。通过本体感受漂移和问卷主观地定量评估实施。结果表明，触觉反馈显着提高了虚拟手的主观体现，力反馈导致更强的反应，某些子尺度的主观体现。这些结果是有用的可穿戴触觉设计师的指导方针，并代表了进一步研究的基础上，人体体验，在现实中，在虚拟环境中。
Increasing presence is one of the primary goals of virtual reality research. A crucial aspect is that users are capable of distinguishing their self from the external virtual world. The hypothesis we investigate is that wearable haptics play an important role in the body experience and could thereby contribute to the immersion of the user in the virtual environment. A within-subject study (n=32) comparing the embodiment of a virtual hand with different implementations of haptic feedback (force feedback, vibrotactile feedback, and no haptic feedback) is presented. Participants wore a glove with haptic feedback devices at thumb and index finger. They were asked to put virtual cubes on a moving virtual target. Touching a virtual object caused vibrotactile-feedback, force-feedback or no feedback depending on the condition. These conditions were provided both synchronously and asynchronously. Embodiment was assessed quantitatively with the proprioceptive drift and subjectively via a questionnaire. Results show that haptic feedback significantly improves the subjective embodiment of a virtual hand and that force feedback leads to stronger responses to certain subscales of subjective embodiment. These outcomes are useful guidelines for wearable haptic designer and represent a basis for further research concerning human body experience, in reality, and in virtual environments.