The Effect of Feedback on Estimates of Reaching Ability in Virtual Reality

Gagnon, Holly; Rohovit, Taren; Finney, Hunter; Zhao, Yu; Franchak, John M.; Stefanucci, Jeanine K.; Bodenheimer, Bobby; Creem-Regehr, Sarah H.

doi:10.1109/vr50410.2021.00107

Cited by 13 publications

(6 citation statements)

References 57 publications

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“…As briefly alluded to in the Introduction, if transitioning between modalities is problematic due to different modalities' unique features, an alternative would be to remain in a single modality. Although VR/AR would elicit perceptual distortions and alter motor planning and control, studies have shown that, like any other adverse situations, the observers are capable of adapting to the perturbation and achieving high movement accuracy and consistency (Ebrahimi et al, 2014(Ebrahimi et al, , 2015Gagnon et al, 2021;Kohm et al, 2022;Mohler et al, 2006). From a dynamical systems perspective, complex motor skills entail a plethora of redundancies in the actorenvironment system, such as the redundancy in the joints' degrees of freedom and the redundancy in the appropriate movement trajectories.…”

Section: Discussionmentioning

confidence: 99%

Mixed Reality Alters Motor Planning and Control

Wang,

Nitsche,

Resch

et al. 2024

Preprint

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Compared to physical, unmediated reality (UR), mixed reality technologies, such as Virtual (VR) and Augmented (AR) Reality, entail perturbations across multiple sensory modalities (visual, haptic, etc.) that could alter how actors move within the different environments. Because of the mediated nature, goal-directed movements in VR and AR may rely on planning and control processes that are different from movements in UR, resulting in less efficient motor control. The current study involved participants performing manual aiming movements on Müller-Lyer illusion stimuli to examine the relative contributions of movement planning and online control in UR, VR, and AR. Compared to UR, movements in VR were slower but were equally variable with a comparable level of online control, whereas movements in AR showed comparable speed but exhibited higher variability and less online control. Further, movements in VR and AR demonstrated a greater illusory effect in endpoint accuracy relative to UR. These findings suggested that participants in VR adopted an active compensation strategy to overcome the impact of less efficient online control, whereas those in AR did not. The findings that VR and AR fundamentally alter movement planning and execution provide valuable insights into the potential neural systems engaged during movements in different realities.

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Section: Discussionmentioning

confidence: 99%

Mixed Reality Alters Motor Planning and Control

Wang,

Nitsche,

Resch

et al. 2024

Preprint

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“…Notably, our participants never received any feedback about their performance. Research has shown that performance in VR can be improved by feedback [91][92][93][94].…”

Section: (C) Strategies For Improving Accuracy Of Perception In Virtu...mentioning

confidence: 99%

Familiar size affects perception differently in virtual reality and the real world

Rzepka

Hussey

Maltz

et al. 2022

Phil. Trans. R. Soc. B

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The promise of virtual reality (VR) as a tool for perceptual and cognitive research rests on the assumption that perception in virtual environments generalizes to the real world. Here, we conducted two experiments to compare size and distance perception between VR and physical reality (Maltz et al . 2021 J. Vis. 21 , 1–18). In experiment 1, we used VR to present dice and Rubik's cubes at their typical sizes or reversed sizes at distances that maintained a constant visual angle. After viewing the stimuli binocularly (to provide vergence and disparity information) or monocularly, participants manually estimated perceived size and distance. Unlike physical reality, where participants relied less on familiar size and more on presented size during binocular versus monocular viewing, in VR participants relied heavily on familiar size regardless of the availability of binocular cues. In experiment 2, we demonstrated that the effects in VR generalized to other stimuli and to a higher quality VR headset. These results suggest that the use of binocular cues and familiar size differs substantially between virtual and physical reality. A deeper understanding of perceptual differences is necessary before assuming that research outcomes from VR will generalize to the real world. This article is part of a discussion meeting issue ‘New approaches to 3D vision’.

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“…Given the constraints following COVID-19 testing protocols, Gagnon et al [21] were unable to calibrate or make adjustments to their HMD system for individual participants. In one study [52], researchers also delivered instructions from a separate room via loudspeaker, adapting the hardware set up to comply with regulations.…”

Section: Covid-19 Considerations: Reported Vs Not Statedmentioning

confidence: 99%

Socially Distanced: Have user evaluation methods for Immersive Technologies changed during the COVID-19 pandemic?

Spittle

Frutos-Pascual

et al. 2021

2021 IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct)

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Since the emergence of COVID-19 in late 2019, there has been a significant disturbance in human-to-human interaction that has changed the way we conduct user studies in the field of Human-Computer Interaction (HCI), especially for extended (augmented, mixed, and virtual) reality (XR). To uncover how XR research has adapted throughout the pandemic, this paper presents a review of user study methodology adaptations from a corpus of 951 papers. This corpus of papers covers CORE 2021 A* published conference submissions, from Q2 2020 through to Q1 2021 (IEEE ISMAR, ACM CHI, IEEE VR). The review highlights how methodologies were changed and reported; sparking discussions surrounding how methods should be conveyed and to what extent research should be contextualised, by drawing on external topical factors such as COVID-19, to maximise usefulness and perspective for future studies. We provide a set of initial guidelines based on our findings, posing key considerations for researchers when reporting on user studies during uncertain and unprecedented times.

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The Effect of Feedback on Estimates of Reaching Ability in Virtual Reality

Cited by 13 publications

References 57 publications

Mixed Reality Alters Motor Planning and Control

Mixed Reality Alters Motor Planning and Control

Familiar size affects perception differently in virtual reality and the real world

Socially Distanced: Have user evaluation methods for Immersive Technologies changed during the COVID-19 pandemic?

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