PDF(Pubmed)
Abstract：
In recent years, due to the prevalence of virtual reality (VR) and human-computer interaction (HCI) research, along with the expectation that understanding the process of establishing sense of ownership, sense of agency, and limb heaviness (in this study, limb heaviness is replaced with comfort level) will contribute to the development of various medical rehabilitation, various studies have been actively conducted in these fields. Previous studies have indicated that each perceptual characteristics decrease in response to positive delay. However, it is still unclear how each perceptual characteristic changes in response to negative delay. Therefore, the purpose of this study was to deduce how changes occur in the perceptual characteristics when certain settings are manipulated using the avatar developed in this study. This study conducted experiments using an avatar system developed for this research that uses electromyography as the interface. Two separate experiments involved twelve participants: a preliminary experiment and a main experiment. As observed in the previous study, it was confirmed that each perceptual characteristics decreased for positive delay. In addition, the range of the preliminary experiment was insufficient for the purpose of this study, which was to confirm the perceptual characteristics for negative delay, thus confirming the validity of conducting this experiment. Meanwhile, the main experiment showed that the sense of ownership, sense of agency, and comfort level decreased gradually as delay time decreased, (i.e., this event is prior to action with intention, which could not be examined in the previous study). This suggests that control by the brain-machine interface is difficult to use when it is too fast. In addition, the distribution of the most strongly perceived settings in human perceptual characteristics was wider in regions with larger delays, suggesting this may lead to the evaluation of an internal model believed to exist in the human cerebellum. The avatar developed for this study may have the potential to create a new experimental paradigm for perceptual characteristics.
摘要：
近年来,由于虚拟现实(VR)和人机交互(HCI)研究的普及，随着人们期望理解建立主人翁意识的过程，代理意识,和肢体沉重(在这项研究中，用舒适度代替肢体沉重）将有助于各种医疗康复的发展，在这些领域已经积极开展了各种研究。先前的研究表明，每个感知特征都会随着正延迟而降低。然而,目前尚不清楚每个感知特征如何响应负延迟。因此,这项研究的目的是推断当使用本研究开发的化身操纵某些设置时，感知特征的变化是如何发生的。这项研究使用为这项研究开发的化身系统进行了实验，该系统使用肌电图作为界面。两个独立的实验涉及十二个参与者：一个初步实验和一个主要实验。正如在之前的研究中观察到的，已证实，每个感知特征都会随着正延迟而降低。此外,初步实验的范围不足以达到本研究的目的，这是为了确认负延迟的感知特征，从而证实了进行这个实验的有效性。同时,主要实验表明，所有权意识，代理意识,随着延迟时间的减少，舒适度逐渐降低，(即，此事件是在有意采取行动之前，在之前的研究中无法检查)。这表明脑机接口的控制在速度太快时很难使用。此外,在具有较大延迟的区域中，人类感知特征中最强烈感知的设置的分布更广泛，这表明这可能导致对被认为存在于人类小脑中的内部模型的评估。为这项研究开发的化身可能有可能为感知特征创建新的实验范式。
