Influence of hand visualization on tool-based motor skills training in an immersive VR simulator

Ricca, Aylen; Chellali, Amine; Otmane, Samir

doi:10.1109/ismar50242.2020.00049

Cited by 12 publications

(9 citation statements)

References 41 publications

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“…This supports the need of adding physical tools to VR motor skills trainers. Finally, Ricca et al experiment has shown that having the users' virtual hand visualization does not impact users' task performance during a tool-based motor task [30]. However, it is not clear whether these findings apply for a longer training.…”

Section: Hands Visualization In Manual Tasks and Motor Skills Trainingmentioning

confidence: 97%

“…On the other hand, other studies have shown that the virtual hands do not have a significant impact on performance for direct and toolbased object manipulation [25,30]. Indeed, Batmaz et al showed that for a pick and place task, tool-based manipulation achieved the same performance as bare hands manipulation in terms of precision for direct and 2D-monitor visualization of the working site [5], and with stereoscopic view [4].…”

Section: Hands Visualization In Manual Tasks and Motor Skills Trainingmentioning

confidence: 99%

“…In this context, two characteristics of the virtual hand have been explored; the hand visual fidelity (i.e., visual resemblance between the real and virtual hands) and the hand kinematic fidelity (i.e., replicating the real hand movements on the virtual hands). In general, research has shown that higher levels of kinematic fidelity can influence the users' sense of agency (i.e., sense of having motor control) [1,30] and their whole state of presence [25]. On the other hand, higher levels of visual fidelity have been shown to improve the sense of ownership (i.e., the virtual body is experienced as users' own body) [1,17,26].…”

Section: The Impact Of Virtual Hands Characteristics On User Experience In Vrmentioning

confidence: 99%

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The influence of hand visualization in tool-based motor-skills training, a longitudinal study

Ricca

Chellali²,

Otrnane³

2021

2021 IEEE Virtual Reality and 3D User Interfaces (VR)

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Mastering motor skills requires performing the task unconsciously with great speed and accuracy. This is acquired slowly through practice over time. Nonetheless, in domains such as surgery, the training of these skills in the field introduces safety, ethical and economic issues. In this context, immersive VR technologies offer the possibility to recreate real-world situations and allow the trainees to improve their skills in a safe and controlled environment. However, the design of such systems raises new research questions, such as how to represent the user in the virtual environment, and whether this representation can influence motor skills automaticity.In this work, we focus on how the user's hand representation can impact the training of tool-based motor skills in immersive VR. To investigate this question, we have created a VR simulator for training a tool-based pick and place task, and conducted a user study to evaluate how the user's hand visualization can influence participants' learning performance after a two-week training period. For that purpose, two groups of participants were trained in the VR simulator under one of the two experimental conditions: the presence and the absence of their virtual hands' representation, while a control group received no training. The results of the study show that training on the VR simulator improves the participants' motor task performance when compared with the control group. On the other hand, no difference was observed between the two training groups. This suggests that the user's hand visualization does not always impact tool-based motor tasks training in immersive VR simulators. Indeed, for short-term motor training there was no difference in performance between having a partial embodiment of the user's hands and only the tools representation.

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Section: Hands Visualization In Manual Tasks and Motor Skills Trainingmentioning

confidence: 97%

Section: Hands Visualization In Manual Tasks and Motor Skills Trainingmentioning

confidence: 99%

Section: The Impact Of Virtual Hands Characteristics On User Experience In Vrmentioning

confidence: 99%

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The influence of hand visualization in tool-based motor-skills training, a longitudinal study

Ricca

Chellali²,

Otrnane³

2021

2021 IEEE Virtual Reality and 3D User Interfaces (VR)

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“…For instance, people perform better in a bow-shooting task with a full-body, and tend to prefer this representation over other simpler representations (only controllers or floating hands) [34]. Another study found a user preference for performing a tool-based pick and place task with a visual hand representation, albeit performance was similar to the condition of performing the same task without a visual hand representation [90]. In terms of realism, a visually faithful avatar does not outperform a generic avatar in a cognitive manipulation task [60] or a robot avatar in a pointing task [94], showing a potential low impact of human-likeness on performance.…”

Section: Output Devicesmentioning

confidence: 99%

“…Several studies have shown that avatar characteristics can have an impact on user performance [90,111]. These studies mostly investigated the efect of avatar appearance (e.g.…”

Section: Do Not Disregard the Role Of The Avatar During The Evaluation Processmentioning

confidence: 99%

Towards “Avatar-Friendly” 3D Manipulation Techniques: Bridging the Gap Between Sense of Embodiment and Interaction in Virtual Reality

Dewez

Hoyet

Lécuyer

et al. 2021

Proceedings of the 2021 CHI Conference on Human Factors in Computing Systems

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Avatars, the users' virtual representations, are becoming ubiquitous in virtual reality applications. In this context, the avatar becomes the medium which enables users to manipulate objects in the virtual environment. It also becomes the users' main spatial reference, which can not only alter their interaction with the virtual environment, but also the perception of themselves. In this paper, we review and analyse the current state-of-the-art for 3D object manipulation and the sense of embodiment. Our analysis is twofold. First, we discuss the impact that the avatar can have on object manipulation. Second, we discuss how the diferent components of a manipulation technique (i.e. input, control and feedback) can infuence the user's sense of embodiment. Throughout the analysis, we crystallise our discussion with practical guidelines for VR application designers and we propose several research topics towards "avatar-friendly" manipulation techniques. CCS CONCEPTS• Human-centered computing → Interaction design theory, concepts and paradigms.

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The Impact of Virtual and Augmented Reality on the Development of Motor Skills and Coordination in Children with Special Educational Needs

Kolev,

Trenchev,

Traykov

et al. 2023

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering

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Influence of hand visualization on tool-based motor skills training in an immersive VR simulator

Cited by 12 publications

References 41 publications

The influence of hand visualization in tool-based motor-skills training, a longitudinal study

The influence of hand visualization in tool-based motor-skills training, a longitudinal study

Towards “Avatar-Friendly” 3D Manipulation Techniques: Bridging the Gap Between Sense of Embodiment and Interaction in Virtual Reality

The Impact of Virtual and Augmented Reality on the Development of Motor Skills and Coordination in Children with Special Educational Needs

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