scholarly journals DOES IMMERSIVE VIRTUAL REALITY INDUCE CYBERSICKNESS AND IMPACT EQUILIBRIUM COORDINATION?

2021 ◽  
Vol 10 (5) ◽  
pp. 3546-3551
Author(s):  
Tamanna Nurai
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Motion Sickness ◽  
Virtual Worlds ◽  
Body Awareness ◽  
Self Report ◽  
Simulator Sickness ◽  
Cross Sectional ◽  
Head Mounted Display ◽  
Simulator Sickness Questionnaire

Cybersickness continues to become a negative consequence that degrades the interface for users of virtual worlds created for Virtual Reality (VR) users. There are various abnormalities that might cause quantifiable changes in body awareness when donning an Head Mounted Display (HMD) in a Virtual Environment (VE). VR headsets do provide VE that matches the actual world and allows users to have a range of experiences. Motion sickness and simulation sickness performance gives self-report assessments of cybersickness with VEs. In this study a simulator sickness questionnaire is being used to measure the aftereffects of the virtual environment. This research aims to answer if Immersive VR induce cybersickness and impact equilibrium coordination. The present research is formed as a cross-sectional observational analysis. According to the selection criteria, a total of 40 subjects would be recruited from AVBRH, Sawangi Meghe for the research. With intervention being used the experiment lasted 6 months. Simulator sickness questionnaire is used to evaluate the after-effects of a virtual environment. It holds a single period for measuring motion sickness and evaluation of equilibrium tests were done twice at exit and after 10 mins. Virtual reality being used in video games is still in its development. Integrating gameplay action into the VR experience will necessitate a significant amount of study and development. The study has evaluated if Immersive VR induce cybersickness and impact equilibrium coordination. To measure cybersickness, numerous scales have been developed. The essence of cybersickness has been revealed owing to work on motion sickness in a simulated system.

Assessing the Impact of Control and Sensory Compatibility on Sickness in Virtual Environments

1996 ◽  
Vol 40 (22) ◽  
pp. 1122-1125 ◽  
Author(s):  
Christopher J. Rich ◽  
Curt C. Braun
Keyword(s):  
Virtual Environments ◽  
Virtual Environment ◽  
Motion Sickness ◽  
Sensory Information ◽  
Conflict Theory ◽  
Simulator Sickness ◽  
Sensory Inputs ◽  
Simulator Sickness Questionnaire ◽  
Main Effects ◽  
The Impact

Virtual reality (VR) users are frequently limited by motion sickness-like symptoms. One factor that might influence sickness in VR is the level of control one has in a virtual environment. Reason's Sensory Conflict Theory suggested that motion sickness occurs when incompatibilities exist between four sensory inputs. It is possible that control and sensory compatibility are positively related. If this is the case, increasing control in a virtual environment should result in decreasing symptomology. To test this, the present study used the Simulator Sickness Questionnaire to measure symptomology of 163 participants after exposure to a virtual environment. Three levels of control and compatibility were assessed. It was hypothesized that the participants with control and compatible sensory information would experience fewer symptoms than participants in either the control/incompatible or no control/incompatible conditions. Although significant main effects were found for both gender and condition, the findings were opposite of those hypothesized. Possible explanations for this finding are discussed.

Preliminary findings on the Virtual Environment for Radiotherapy Training (VERT) system: simulator sickness and presence

2009 ◽  
Vol 8 (4) ◽  
pp. 169-176 ◽  
Author(s):  
David M. Flinton ◽  
Nick White
Keyword(s):  
Medical Education ◽  
Side Effects ◽  
Adverse Effects ◽  
Virtual Environments ◽  
Virtual Environment ◽  
Motion Sickness ◽  
General Health ◽  
Simulator Sickness ◽  
Simulator Sickness Questionnaire ◽  
Thé Vert

AbstractBackground:Virtual environments in medical education are becoming increasingly popular as a learning tool. However, there is a large amount of evidence linking these systems to adverse effects that mimic motion sickness. It is also proposed that the efficacy of such systems is affected by how well they engage the user, which is often referred to as presence.Purpose:This primary purpose of this study was to look at the side effects experienced and presence in the Virtual Environment for Radiotherapy Training (VERT) system which has recently been introduced.Method:A pre-VERT questionnaire was given to 84 subjects to ascertain general health of the subjects. The simulator sickness questionnaire was utilised to determine the side effects experienced, whereas the igroup presence questionnaire was used to measure presence. Both questionnaires were given immediately after use of the VERT system.Results:The majority of symptoms were minor; the two most commonly reported symptoms relating to ocular issues. No relationship was seen between simulator sickness and presence although subjects with a higher susceptibility to travel sickness had reported higher levels of disorientation and nausea. There was also a decrease in involvement with the system in subjects with a higher susceptibility to travel sickness.

scholarly journals Vection Change Exacerbates Simulator Sickness in Virtual Environments

2008 ◽  
Vol 17 (3) ◽  
pp. 283-292 ◽  
Author(s):  
Frederick Bonato ◽  
Andrea Bubka ◽  
Stephen Palmisano ◽  
Danielle Phillip ◽  
Giselle Moreno
Keyword(s):  
Virtual Reality ◽  
Flow Pattern ◽  
Virtual Environments ◽  
Motion Sickness ◽  
Optic Flow ◽  
Flow Patterns ◽  
Simulator Sickness ◽  
Simulator Sickness Questionnaire ◽  
Self Motion

The optic flow patterns generated by virtual reality (VR) systems typically produce visually induced experiences of self-motion (vection). While this vection can enhance presence in VR, it is often accompanied by a variant of motion sickness called simulator sickness (SS). However, not all vection experiences are the same. In terms of perceived heading and/or speed, visually simulated self-motion can be either steady or changing. It was hypothesized that changing vection would lead to more SS. Participants viewed an optic flow pattern that either steadily expanded or alternately expanded and contracted. In one experiment, SS was measured pretreatment and after 5 min of viewing using the Simulator Sickness Questionnaire. In a second experiment employing the same stimuli, vection onset and magnitude were measured using a computer-interfaced slide indicator. The steadily expanding flow pattern, compared to the expanding and contracting pattern, led to: 1) significantly less SS, 2) lower subscores for nausea, oculomotor, and disorientation symptoms, 3) more overall vection magnitude, and 4) less changing vection. Collectively, these results suggest that changing vection exacerbates SS.

scholarly journals Low-Asymmetry Interface for Multiuser VR Experiences with Both HMD and Non-HMD Users

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 397
Author(s):  
Qimeng Zhang ◽  
Ji-Su Ban ◽  
Mingyu Kim ◽  
Hae Won Byun ◽  
Chang-Hun Kim
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Mobile Device ◽  
User Satisfaction ◽  
Virtual World ◽  
User Study ◽  
Visual Display ◽  
Point Of View ◽  
Head Mounted Display ◽  
And Behavior

We propose a low-asymmetry interface to improve the presence of non-head-mounted-display (non-HMD) users in shared virtual reality (VR) experiences with HMD users. The low-asymmetry interface ensures that the HMD and non-HMD users’ perception of the VR environment is almost similar. That is, the point-of-view asymmetry and behavior asymmetry between HMD and non-HMD users are reduced. Our system comprises a portable mobile device as a visual display to provide a changing PoV for the non-HMD user and a walking simulator as an in-place walking detection sensor to enable the same level of realistic and unrestricted physical-walking-based locomotion for all users. Because this allows non-HMD users to experience the same level of visualization and free movement as HMD users, both of them can engage as the main actors in movement scenarios. Our user study revealed that the low-asymmetry interface enables non-HMD users to feel a presence similar to that of the HMD users when performing equivalent locomotion tasks in a virtual environment. Furthermore, our system can enable one HMD user and multiple non-HMD users to participate together in a virtual world; moreover, our experiments show that the non-HMD user satisfaction increases with the number of non-HMD participants owing to increased presence and enjoyment.

scholarly journals Children’s interactive storytelling in Virtual Reality

2021 ◽  
Vol 1 (1) ◽  
pp. 48-67
Author(s):  
Dylan Yamada-Rice
Keyword(s):  
Virtual Reality ◽  
Digital Media ◽  
Virtual Worlds ◽  
Health And Safety ◽  
Design Elements ◽  
Interactive Storytelling ◽  
Head Mounted Display ◽  
Visual Style ◽  
Multimodal Methods ◽  
Core Points

This article reports on one stage of a project that considered twenty 8–12-years-olds use of Virtual Reality (VR) for entertainment. The entire project considered this in relation to interaction and engagement, health and safety and how VR play fitted into children’s everyday home lives. The specific focus of this article is solely on children’s interaction and engagement with a range of VR content on both a low-end and high-end head mounted display (HMD). The data were analysed using novel multimodal methods that included stop-motion animation and graphic narratives to develop multimodal means for analysis within the context of VR. The data highlighted core design elements in VR content that promoted or inhibited children’s storytelling in virtual worlds. These are visual style, movement and sound which are described in relation to three core points of the user’s journey through the virtual story; (1) entering the virtual environment, (2) being in the virtual story world, and (3) affecting the story through interactive objects. The findings offer research-based design implications for the improvement of virtual content for children, specifically in relation to creating content that promotes creativity and storytelling, thereby extending the benefits that have previously been highlighted in the field of interactive storytelling with other digital media.

Virtual Reality (VR) in Pediatrics: Innovative Perspectives With Special Reference To Clinical Applications and Pediatric Rehabilitation

2021 ◽  
Author(s):  
Stefan Bittmann
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Virtual Worlds ◽  
Virtual World ◽  
Mixed Reality ◽  
Clinical Applications ◽  
Virtual Space ◽  
Data Glove ◽  
Input Devices ◽  
Head Mounted Displays

Virtual reality (VR) is the term used to describe representation and perception in a computer-generated, virtual environment. The term was coined by author Damien Broderick in his 1982 novel “The Judas Mandala". The term "Mixed Reality" describes the mixing of virtual reality with pure reality. The term "hyper-reality" is also used. Immersion plays a major role here. Immersion describes the embedding of the user in the virtual world. A virtual world is considered plausible if the interaction is logical in itself. This interactivity creates the illusion that what seems to be happening is actually happening. A common problem with VR is "motion sickness." To create a sense of immersion, special output devices are needed to display virtual worlds. Here, "head-mounted displays", CAVE and shutter glasses are mainly used. Input devices are needed for interaction: 3D mouse, data glove, flystick as well as the omnidirectional treadmill, with which walking in virtual space is controlled by real walking movements, play a role here.

Non-Verbal Communication Language in Virtual Worlds

2021 ◽  
pp. 394-415
Author(s):  
Ivonne Citarella
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Virtual Worlds ◽  
Second Life ◽  
Verbal Communication ◽  
Virtual Space ◽  
Communication Process ◽  
Conscious Choice

Over the years, the virtual space has been changing, and the skills acquired by users have been improved, and the avatars, as well as the settings, have graphically become more and more sophisticated. In virtual reality, the avatar without an appropriate animation would move in jerks in a disharmonious way similar to a robot, but endowing it with a particular postural animation, you make a conscious choice of what information you want to transfer with its appearance and its posture. In recent years, research has focused on the study of communication and its importance. The purpose of this contribution is to analyze the animations present in Second Life trying to trace a socio-psychological picture of the non-verbal communication process in a virtual environment.

Freehand Gesture and Tactile Interaction for Shape Design

2016 ◽  
Vol 16 (4) ◽  
Author(s):  
Monica Bordegoni ◽  
Mario Covarrubias ◽  
Giandomenico Caruso ◽  
Umberto Cugini
Keyword(s):  
Virtual Reality ◽  
Degrees Of Freedom ◽  
3D Model ◽  
Shape Design ◽  
Leap Motion ◽  
Cross Sectional ◽  
Head Mounted Display ◽  
Tactile Interaction ◽  
Metallic Strip ◽  
6 Degrees Of Freedom

This paper presents a novel system that allows product designers to design, experience, and modify new shapes of objects, starting from existing ones. The system allows designers to acquire and reconstruct the 3D model of a real object and to visualize and physically interact with this model. In addition, the system allows designer to modify the shape through physical manipulation of the 3D model and to eventually print it using a 3D printing technology. The system is developed by integrating state-of-the-art technologies in the sectors of reverse engineering, virtual reality, and haptic technology. The 3D model of an object is reconstructed by scanning its shape by means of a 3D scanning device. Then, the 3D model is imported into the virtual reality environment, which is used to render the 3D model of the object through an immersive head mounted display (HMD). The user can physically interact with the 3D model by using the desktop haptic strip for shape design (DHSSD), a 6 degrees of freedom servo-actuated developable metallic strip, which reproduces cross-sectional curves of 3D virtual objects. The DHSSD device is controlled by means of hand gestures recognized by a leap motion sensor.

Influence of Physical Characteristics of Routes on Distance Cognition in Virtual Environments

2005 ◽  
Vol 32 (5) ◽  
pp. 777-785 ◽  
Author(s):  
Ebru Cubukcu ◽  
Jack L Nasar
Keyword(s):  
Virtual Reality ◽  
Virtual Environments ◽  
Virtual Environment ◽  
Real World ◽  
Three Dimensional ◽  
Spatial Behavior ◽  
Self Report ◽  
Parking Garage ◽  
The Real ◽  
Predicting Behavior

Discrepanices between perceived and actual distance may affect people's spatial behavior. In a previous study Nasar, using self report of behavior, found that segmentation (measured through the number of buildings) along the route affected choice of parking garage and path from the parking garage to a destination. We recreated that same environment in a three-dimensional virtual environment and conducted a test to see whether the same factors emerged under these more controlled conditions and to see whether spatial behavior in the virtual environment accurately reflected behavior in the real environment. The results confirmed similar patterns of response in the virtual and real environments. This supports the use of virtual reality as a tool for predicting behavior in the real world and confirms increases in segmentation as related to increases in perceived distance.

scholarly journals A Study on Evacuation Behavior in Physical and Virtual Reality Experiments

2021 ◽  
Author(s):  
Silvia Arias ◽  
Axel Mossberg ◽  
Daniel Nilsson ◽  
Jonathan Wahlqvist
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Waiting Times ◽  
Physical Experiment ◽  
Evacuation Time ◽  
Factors Affecting ◽  
Head Mounted Display ◽  
Physical Experiments ◽  
Exit Choice ◽  
In Fire

AbstractComparing results obtained in Virtual Reality to those obtained in physical experiments is key for validation of Virtual Reality as a research method in the field of Human Behavior in Fire. A series of experiments based on similar evacuation scenarios in a high-rise building with evacuation elevators was conducted. The experiments consisted of a physical experiment in a building, and two Virtual Reality experiments in a virtual representation of the same building: one using a Cave Automatic Virtual Environment (CAVE), and one using a head-mounted display (HMD). The data obtained in the HMD experiment is compared to data obtained in the CAVE and physical experiment. The three datasets were compared in terms of pre-evacuation time, noticing escape routes, walking paths, exit choice, waiting times for the elevators and eye-tracking data related to emergency signage. The HMD experiment was able to reproduce the data obtained in the physical experiment in terms of pre-evacuation time and exit choice, but there were large differences with the results from the CAVE experiment. Possible factors affecting the data produced using Virtual Reality are identified, such as spatial orientation and movement in the virtual environment.

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