Head Movements and Simulator Sickness Generated by a Virtual Environment

2010 ◽  
Vol 81 (10) ◽  
pp. 929-934 ◽  
Author(s):  
Alexander D. Walker ◽  
Eric R. Muth ◽  
Fred S. Switzer ◽  
Adam Hoover
Keyword(s):  
Virtual Environment ◽  
Head Movements ◽  
Simulator Sickness

Learning and Transfer of Spatial Knowledge in a Virtual Environment

1994 ◽  
Vol 38 (18) ◽  
pp. 1158-1162 ◽  
Author(s):  
John H. Bailey ◽  
Bob G. Witmer
Keyword(s):  
Knowledge Acquisition ◽  
Virtual Environment ◽  
Real World ◽  
Spatial Knowledge ◽  
Simulator Sickness ◽  
Route Knowledge ◽  
The Real

Two experiments were conducted to investigate route and configurational knowledge acquisition in a virtual environment (VE). The results indicate that route knowledge can be acquired in a VE and that it transfers to the real world. Furthermore, although it was not explicitly trained, participants acquired some configurational knowledge. Higher levels of interactive exposure to the VE resulted in better route knowledge than less interactive exposure. There was some evidence that more reported presence was correlated with better performance on spatial knowledge tests, while more reported simulator sickness was correlated with worse performance. Finally, performance during VE rehearsals was a strong, consistent correlate of performance on spatial knowledge tests.

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.

Rotational Dynamic Illusion Related to Physiological Influence in Virtual Environments

2001 ◽  
Vol 13 (6) ◽  
pp. 588-593 ◽  
Author(s):  
Toyomi Fujita ◽  
◽  
Masanori Idesawa
Keyword(s):  
Virtual Environments ◽  
Virtual Environment ◽  
Motion Sickness ◽  
Head Movement ◽  
Visual Illusion ◽  
Technology Development ◽  
Simulator Sickness ◽  
Measuring Head ◽  
Rotational Dynamic

As virtual environment (VE) technology has become more disseminated, harmful physiological influences on users of VE have been reported such as simulator sickness and motion sickness – collectively called VE sickness. For VE safety and comfort, we note a new dynamic visual illusion, called ""rotational dynamic illusion"". Several psychophysical experiments measuring head movement in illusion observation suggest that perceptive features of rotational dynamic illusion are closely related to balance, which causes VE sickness. These features will be effective in realizing VE safety and comfort and trigger advances in VE technology development.

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.

Profile Analysis of Simulator Sickness Symptoms: Application to Virtual Environment Systems

1992 ◽  
Vol 1 (3) ◽  
pp. 295-301 ◽  
Author(s):  
Robert S. Kennedy ◽  
Norman E. Lane ◽  
Michael G. Lilienthal ◽  
Kevin S. Berbaum ◽  
Lawrence J. Hettinger
Keyword(s):  
Virtual Environment ◽  
Motion Sickness ◽  
Profile Analysis ◽  
Visual Display ◽  
Simulator Sickness ◽  
Classical Motion ◽  
Flight Simulators ◽  
Safety And Health ◽  
Analytic Scoring ◽  
Display Systems

Flight simulators are examples of virtual environment (VE) systems that often give rise to a form of discomfort resembling classical motion sickness. The major difference between simulator sickness and other forms of motion sickness is that the former exhibits more oculomotor-related symptoms and far less actual vomiting. VEs of the future are likely to include more compellingly realistic visual display systems, and these systems can also be expected to produce adverse symptoms. The implications of simulator sickness for future uses of VEs include adverse consequences for users' safety and health, user acceptance, training effectiveness, and overall system performance. Based on data from a factor analysis of over 1000 Navy and Marine Corps pilot simulation exposures, a new scoring procedure for simulator sickness has recently been developed (Lane & Kennedy, 1988; Kennedy, Lane, Berbaum, & Lilienthal, 1992). The factor analytic scoring key provides subscales for oculomotor stress (eyestrain), nausea, and disorientation. Simulators are being examined in terms of these factor profiles to identify causes of simulator sickness. This approach could also be used in evaluating motion sickness-like symptomatology that occurs in connection with the use of VEs. This paper describes the use of the multifactor scoring of the Simulator Sickness Questionnaire (SSQ) in diagnosing sources of simulator sickness in individual simulators. Reanalysis by this new methodology was employed to standardize existing simulator sickness survey data and to determine whether relationships existed that were missed by the more traditional scoring approaches.

scholarly journals The systematic evaluation of an embodied control interface for virtual reality

PLoS ONE ◽  
2021 ◽  
Vol 16 (12) ◽  
pp. e0259977
Author(s):  
Kenan Bektaş ◽  
Tyler Thrash ◽  
Mark A. van Raai ◽  
Patrik Künzler ◽  
Richard Hahnloser
Keyword(s):  
Virtual Reality ◽  
Flight Simulation ◽  
Head Movements ◽  
Handheld Devices ◽  
Systematic Evaluation ◽  
Body Sway ◽  
Simulator Sickness ◽  
Control Functions ◽  
Control Interface ◽  
Simulation Scenario

Embodied interfaces are promising for virtual reality (VR) because they can improve immersion and reduce simulator sickness compared to more traditional handheld interfaces (e.g., gamepads). We present a novel embodied interface called the Limbic Chair. The chair is composed of two separate shells that allow the user’s legs to move independently while sitting. We demonstrate the suitability of the Limbic Chair in two VR scenarios: city navigation and flight simulation. We compare the Limbic Chair to a gamepad using performance measures (i.e., time and accuracy), head movements, body sway, and standard questionnaires for measuring presence, usability, workload, and simulator sickness. In the city navigation scenario, the gamepad was associated with better presence, usability, and workload scores. In the flight simulation scenario, the chair was associated with less body sway (i.e., less simulator sickness) and fewer head movements but also slower performance and higher workload. In all other comparisons, the Limbic Chair and gamepad were similar, showing the promise of the Chair for replacing some control functions traditionally executed using handheld devices.

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