scholarly journals Power Wheelchair Virtual Reality Simulator with Vestibular Feedback

2020 ◽  
Vol 81 (1-4) ◽  
pp. 35-42
Author(s):  
Guillaume Vailland ◽  
Yoren Gaffary ◽  
Louise Devigne ◽  
Valérie Gouranton ◽  
Bruno Arnaldi ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Driving Simulators ◽  
Sense Of Presence ◽  
Power Wheelchairs ◽  
Ability Tests ◽  
Driving Task ◽  
Reduced Mobility ◽  
The Impact ◽  
High Sense

Autonomy and the ability to maintain social activities can be challenging for people with disabilities experiencing reduced mobility. In the case of disabilities that impact mobility, power wheelchairs can help such people retain or regain autonomy. Nonetheless, driving a power wheelchair is a complex task that requires a combination of cognitive, visual and visuo-spatial abilities. In practice, people need to pass prior ability tests and driving training before being prescribed a power wheelchair by their therapist. Still, conventional training in occupational therapy can be insufficient for some people with severe cognitive and/or visio-spatial functions. As such, these people are often prevented from obtaining a power wheelchair prescription from their therapist due to safety concerns. In this context, driving simulators might be efficient and promising tools to provide alternative, adaptive, flexible, and safe training. In previous work, we proposed a Virtual Reality (VR) driving simula-integrating vestibular feedback to simulate wheelchair motion sensations. The performance and acceptability of a VR simulator rely on satisfying user Quality of Experience (QoE). Therefore, our simulator is designed to give the user a high Sense of Presence (SoP) and low Cyber-sickness. This paper presents a pilot study assessing the impact of the vestibular feedback provided on user QoE. Participants were asked to perform a driving task whilst in the simulator under two conditions: with and without vestibular feedback. User QoE is assessed through subjective questionnaires measuring user SoP and cyber-sickness. The results show that vestibular feedback activation increases SoP and decreases cyber-sickness. This study constitutes a mandatory step before clinical trials and, as such, only enrolled people without disabilities.

scholarly journals The application of virtual reality and augmented reality in Oral & Maxillofacial Surgery

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Ashraf Ayoub ◽  
Yeshwanth Pulijala
Keyword(s):  
Virtual Reality ◽  
Augmented Reality ◽  
Virtual Environment ◽  
Orthognathic Surgery ◽  
Maxillofacial Surgery ◽  
The Body ◽  
Historical Perspectives ◽  
Virtual And Augmented Reality ◽  
The Impact

Abstract Background Virtual reality is the science of creating a virtual environment for the assessment of various anatomical regions of the body for the diagnosis, planning and surgical training. Augmented reality is the superimposition of a 3D real environment specific to individual patient onto the surgical filed using semi-transparent glasses to augment the virtual scene.. The aim of this study is to provide an over view of the literature on the application of virtual and augmented reality in oral & maxillofacial surgery. Methods We reviewed the literature and the existing database using Ovid MEDLINE search, Cochran Library and PubMed. All the studies in the English literature in the last 10 years, from 2009 to 2019 were included. Results We identified 101 articles related the broad application of virtual reality in oral & maxillofacial surgery. These included the following: Eight systematic reviews, 4 expert reviews, 9 case reports, 5 retrospective surveys, 2 historical perspectives, 13 manuscripts on virtual education and training, 5 on haptic technology, 4 on augmented reality, 10 on image fusion, 41 articles on the prediction planning for orthognathic surgery and maxillofacial reconstruction. Dental implantology and orthognathic surgery are the most frequent applications of virtual reality and augmented reality. Virtual planning improved the accuracy of inserting dental implants using either a statistic guidance or dynamic navigation. In orthognathic surgery, prediction planning and intraoperative navigation are the main applications of virtual reality. Virtual reality has been utilised to improve the delivery of education and the quality of training in oral & maxillofacial surgery by creating a virtual environment of the surgical procedure. Haptic feedback provided an additional immersive reality to improve manual dexterity and improve clinical training. Conclusion Virtual and augmented reality have contributed to the planning of maxillofacial procedures and surgery training. Few articles highlighted the importance of this technology in improving the quality of patients’ care. There are limited prospective randomized studies comparing the impact of virtual reality with the standard methods in delivering oral surgery education.

scholarly journals The Use of Virtual Reality in Geo-Education

2020 ◽  
Vol 15 (20) ◽  
pp. 59
Author(s):  
Nurzhanat Dalelovna Shakirova ◽  
Nidal Al Said ◽  
Svetlana Mihailovna Konyushenko
Keyword(s):  
Virtual Reality ◽  
Subjective Assessment ◽  
Physical Geography ◽  
Google Earth ◽  
Learning System ◽  
Technological Capabilities ◽  
Before And After ◽  
E Learning ◽  
The Impact

The paper discusses the technological capabilities of virtual reality (VR) in the field of education as a highly developed form of computer modeling. VR is con-sidered to be able to revolutionize the education field since it provides better en-gagement in learning activities than other teaching methods. In order to study the impact of VR technology on ensuring the quality of e-learning, an experiment is conducted during the Physical Geography online course. The current research in-volves 60 third-year students from the Abai Kazakh National Pedagogical Uni-versity, Moscow Pedagogical State University, and Ajman University. All the re-spondents were divided into two groups. The training of the first group is under-gone through distance learning in the Moodle e-learning system, while the educa-tional process of the second is supplemented with the technological capabilities of the latest VR services (Google Earth, Apple Maps, My Way VR, The VR Muse-um of Fine Art). During the study, students’ subjective assessment of the training is performed according to the basic, expected, and desirable criteria. The exami-nation is carried out in two stages - before and after the course. At the first stage of the assessment, the use of VR corresponds to the desired quality of the educa-tional product. However, after the course and the acquiring of virtual experience, the transfer of the students' desired training criteria into the expected can be ob-served. This indicates a high degree of adaptability of VR technology in educa-tion as well as an increase in the respondents' requirements against the quality of subsequent training courses. Consequently, a significant impact of immersive technology's evolution on the demands on the e-learning quality can be noted.

Disease Progression in Multiple Sclerosis I. Impaired Mobility and Its Impact on Limitations of Activities and Social Participation

2010 ◽  
Vol 5 (1) ◽  
pp. 56 ◽  
Author(s):  
Jürg Kesselring ◽  
Keyword(s):  
Multiple Sclerosis ◽  
Review Literature ◽  
Contributory Factor ◽  
Impaired Mobility ◽  
Targeted Treatments ◽  
Negative Effect ◽  
Consistent Assessment ◽  
Reduced Mobility ◽  
The Impact

Limitations in activities of daily living are important to an individual's life, and the progressive nature of multiple sclerosis (MS) can have a significant impact on the patient's quality of life (QoL). Monitoring low-level limitations of activities during the early stages of MS should be encouraged, as it can indicate advancing neurological damage. Clinical data and survey evidence from numerous research groups suggest that impaired mobility is a large contributory factor to diminished QoL. Although these studies have demonstrated the negative effect of reduced mobility, there remains a substantial need for greater recognition of the presence and effects of disabilities, including reduced mobility, fatigue, pain, depression and spasticity, and the need for targeted treatments for specific impairments. In this review, literature describing the impact on the lives of patient is presented; because of the variability in speed of progression and prognosis with early mobility loss, the need for early, continuous and consistent assessment is suggested.

scholarly journals STUDY PROTOCOL The effect of a telerehabilitation virtual reality intervention on functional upper limb activities in people with multiple sclerosis: A study protocol for the TEAMS pilot randomized controlled trial

2020 ◽  
Author(s):  
Alon Kalron ◽  
Anat Achiron ◽  
Massimiliano Pau ◽  
Eleonora Cocco
Keyword(s):  
Multiple Sclerosis ◽  
Virtual Reality ◽  
Study Protocol ◽  
Upper Limb ◽  
Conventional Therapy ◽  
Home Based ◽  
Custom Made ◽  
The Impact

Abstract Background: Approximately 60% of people with multiple sclerosis (PwMS) suffer from upper limb dysfunction. Our primary goal is to implement a single-blind, randomized control trial (RCT) designed to compare the effectiveness of an 8-week home-based telerehab virtual reality (VR) program with conventional therapy in PwMS with manual dexterity difficulties. Secondary aims include: a) evaluating the impact of the programs on quality of life after the intervention and a follow up 1 month later; and b) evaluating the impact of the programs on adherence and satisfaction. Methods: Twenty-four PwMS will be recruited to the study which will be conducted at two established MS centers: (1) The Regional Center for Diagnosis and Treatment of Multiple Sclerosis, Binaghi Hospital, Cagliari, Italy; (2) The Multiple Sclerosis Center, Sheba Medical Center, Tel-Hashomer, Israel. Participants will complete a total of three assessments focusing on upper limb functions. Both groups will receive 16 training sessions focusing on functional upper limb activities. The home-based telerehab VR intervention will comprise a custom-made software program running on a private computer or laptop. PwMS will perform several activities of daily living (ADL) functions associated with self-care, dressing and meal preparation. Conventional therapy will focus on task-related upper-limb treatments while in a sitting position, indicative of the standard care in MS. Following 8-weeks of training, participants will complete a further outcome assessment. The same tests will be conducted 1 month (as a follow-up) after completion of the intervention. Discussion: The outcomes of this study have tremendous potential to improve the quality of evidence and informed decisions of functional upper limb activities in PwMS. If comparable results are found between the treatments in improving upper limb outcomes, this would suggest that PwMS can choose the program that best meets their personal needs, e.g., financial concerns, transportation or accessibility issues. Secondly, this information can be used by healthcare providers and medical professionals in developing upper limb exercise programs that will most likely succeed in PwMS. Trial registration: ClinicalTrials.gov NCT04032431. Registered on 19 July 2019.

scholarly journals Virtual Reality-Based Therapy Improves Fatigue, Impact, and Quality of Life in Patients with Multiple Sclerosis. A Systematic Review with a Meta-Analysis

Sensors ◽  
2021 ◽  
Vol 21 (21) ◽  
pp. 7389
Author(s):  
Irene Cortés-Pérez ◽  
Marcelina Sánchez-Alcalá ◽  
Francisco Antonio Nieto-Escámez ◽  
Yolanda Castellote-Caballero ◽  
Esteban Obrero-Gaitán ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Multiple Sclerosis ◽  
Systematic Review ◽  
Virtual Reality ◽  
Meta Analysis ◽  
Simple Observation ◽  
High Level ◽  
The Impact ◽  
Better Than

Patients with multiple sclerosis (PwMS) have a high level of fatigue and a reduced quality of life (QoL) due to the impact of multiple sclerosis (MS). Virtual reality-based therapy (VRBT) is being used to reduce disability in PwMS. The aim of this study was to assess the effect of VRBT on fatigue, the impact of MS, and QoL in PwMS. Methods: A systematic review with meta-analysis was conducted through a bibliographic search on PubMed, Scopus, Web of Science, and PEDro up to April 2021. We included randomized controlled trials (RCTs) with PwMS that received VRBT in comparison to conventional therapy (CT) including physiotherapy, balance and strength exercises, and stretching or physical activity, among others; or in comparison to simple observation; in order to assess fatigue, MS-impact, and QoL. The effect size was calculated using Cohen’s standardized mean difference with a 95% confidence interval (95% CI). Results: Twelve RCTs that provided data from 606 PwMS (42.83 ± 6.86 years old and 70% women) were included. The methodological quality mean, according to the PEDro Scale, was 5.83 ± 0.83 points. Our global findings showed that VRBT is effective at reducing fatigue (SMD −0.33; 95% CI −0.61, −0.06), lowering the impact of MS (SMD −0.3; 95% CI −0.55, −0.04), and increasing overall QoL (0.5; 95% CI 0.23, 0.76). Subgroup analysis showed the following: (1) VRBT is better than CT at reducing fatigue (SMD −0.4; 95% CI −0.7, −0.11), as well as in improving the mental dimension of QoL (SMD 0.51; 95% CI 0.02, 1); (2) VRBT is better than simple observation at reducing the impact of MS (SMD −0.61; 95% CI −0.97, −0.23) and increasing overall QoL (SMD 0.79; 95% CI 0.3, 1.28); and (3) when combined with CT, VRBT is more effective than CT in improving the global (SMD 0.6, 95% CI 0.13, 1.07), physical (SMD 0.87; 95% CI 0.3, 1.43), and mental dimensions (SMD 0.6; 95% CI 0.08, 1.11) of QoL. Conclusion: VRBT is effective at reducing fatigue and MS impact and improving QoL in PwMS.

scholarly journals Exploring the Use of Virtual Reality for the Delivery and Practice of Stress-Management Exercises

2021 ◽  
Vol 12 ◽  
Author(s):  
Desmond Jun Hong Soh ◽  
Crystal Huiyi Ong ◽  
Qianqian Fan ◽  
Denise Ju Ling Seah ◽  
Stacey Lee Henderson ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Healthcare Professionals ◽  
Negative Mood ◽  
Mood States ◽  
Mindfulness Practice ◽  
Sense Of Presence ◽  
Qualitative Responses ◽  
To Receive ◽  
Future Practice

BackgroundMindfulness-based interventions may benefit healthcare professionals with burnout symptoms. Virtual reality (VR) may reduce initial difficulty of engaging in mindfulness exercises and increase participants’ engagement through immersion and presence.AimThe aim was to investigate how VR affects participants’ experience of engagement with mindfulness practice, and its impact on quality of practice and negative mood states.MethodsFifty-one healthcare professionals were randomized to receive either a visualization or non-visualization mindfulness practice, to compare the quality of practice through the use of audio only vs. with a virtual reality interface. Selected self-reported measures were collected during the session (immersion, quality and difficulty of practice, mood states and likelihood for future practice).ResultsResults showed that order instead of type of modality administered made a difference in quality of mindfulness practice. A greater sense of presence was reported with VR if administered after audio (F = 4.810, p = 0.033, Partial η2 = 0.093). Further, participants described difficulty practicing with audio if administered after VR (F = 4.136, p = 0.048, Partial η2 = 0.081). Additionally, lower mood disturbance was reported with VR if administered after audio (F = 8.116, p = 0.006, Partial η2 = 0.147). Qualitative responses echoed a preference for VR to engage better, in addition to improved mood states after practice.ConclusionFindings suggest that VR has the potential to provide healthcare professionals with an alternative or a supplement to conventional mindfulness practice.

scholarly journals Product placement in computer/video games: an analysis of the impact on customers purchasing decision

2019 ◽  
Vol 15 (3) ◽  
pp. 60-70
Author(s):  
Angelina Chernikova ◽  
Murilo Branco
Keyword(s):  
Virtual Reality ◽  
Video Games ◽  
Video Game ◽  
Purchase Intention ◽  
New Technologies ◽  
Product Placement ◽  
Theoretical Contribution ◽  
Brand Recognition ◽  
The Impact

The video game and virtual reality became a new way of doing marketing considering their growing popularity and the advances of new technologies in the past few decades. In this paper is presented a research that investigates the impact of product placement in video games on gamers’ decisions on the purchase of goods from advertised. This research is focused on two of the most played games nowadays: FIFA 19 and Final Fantasy XV. A survey with 465 respondents was conducted to understand the antecedents that impact the purchase decision considering the stimulus originated from the product placement. To conduct the survey, a framework was designed based in the extant literature reviewed and finally considering the constructs of product placement, quality of virtual reality, brand recognition, brand familiarity, emotional response and purchase frequency. The results of the study suggest that gamers generally respond positively towards product placement and that product placement can indirectly impact emotional responses that will impact on consumer’s purchase intention. Hence, advertising in the video game enhances brand recognition and the perception of virtual reality. The framework presented in this paper represents the theoretical contribution of this paper, relating different concepts in the theory of product placement to the purchase intention. Therefore, the findings on this paper can help managers to find the best way to reach customers by improving the product placement strategy in the video games.

scholarly journals Perspective: Does Realism Improve Presence in VR? Suggesting a Model and Metric for VR Experience Evaluation

2021 ◽  
Vol 2 ◽  
Author(s):  
Sungchul Jung ◽  
Robert. W Lindeman
Keyword(s):  
Virtual Reality ◽  
Psychological Aspects ◽  
Positive Correlation ◽  
Audio Cues ◽  
Tactile Cues ◽  
Gesture Input ◽  
The Impact ◽  
The Relationship ◽  
Haptic Cues

The concepts of “immersion” and “presence” have been considered as staple metrics for evaluating the quality of virtual reality experiences for more than five decades, even as the concepts themselves have evolved in terms of both technical and psychological aspects. To enhance the user’s experience, studies have investigated the impact of different visual, auditory, and haptic stimuli in various contexts to mainly explore the concepts of “plausibility illusion” and “place illusion”. Previous research has sometimes shown a positive correlation between increased realism and an increase in presence, but not always, and thus, very little of the work around the topic of presence reports an unequivocal correlation. Indeed, one might classify the overall findings within the field around presence as “messy”. Better (or more) visual, auditory, or haptic cues, or increased agency, may lead to increased realism, but not necessarily increased presence, and may well depend on the application context. Rich visual and audio cues in concert contribute significantly to both realism and presence, but the addition of tactile cues, gesture input support, or a combination of these might improve realism, but not necessarily presence. In this paper, we review previous research and suggest a possible theory to better define the relationship between increases in sensory-based realism and presence, and thus help VR researchers create more effective experiences.

scholarly journals Wayfinding in Virtual Reality Serious Game: An Exploratory Study in the Context of User Perceived Experiences

2021 ◽  
Vol 11 (17) ◽  
pp. 7822
Author(s):  
Shafaq Irshad ◽  
Andrew Perkis ◽  
Waleed Azam
Keyword(s):  
Virtual Reality ◽  
Spatial Knowledge ◽  
Control Group ◽  
Promising Alternative ◽  
Design Elements ◽  
Negative Affects ◽  
Perceived Experiences ◽  
Emergency Scenarios ◽  
The Impact

Extended reality (XR) technologies such as virtual reality (VR) provide a promising alternative for training users through serious games (SGs). VR SGs allow people to train in emergency scenarios and improve their likelihood of survival in high-risk situations. Studies have shown that incorporating design elements such as wayfinding cues enhances the spatial knowledge of users in VR. However, the impact of these wayfinding cues on users’ psychological and psychometric behaviors needs thorough investigation. An SG was designed to investigate wayfinding cues’ psychological and psychometric effects on user-perceived experiences in an immersive VR environment. Thirty-nine participants experienced three variants of the VR SG using Oculus Rift- S. Participants in the control condition were exposed to the VR with no wayfinding cues, and the experimental groups were exposed to VR with static and dynamic wayfinding cues. Results showed that VR SG with wayfinding cues induced less tension, challenge, and negative affects in users’ overall perceived experience. Similarly higher positive affects were observed for the experimental groups with wayfinding cues. It was interesting to observe that there were no significant effects of wayfinding on competence, flow, and immersion; however, heart rate was significantly high in the control group. These findings suggest that wayfinding cues can promote the users perceived quality of experience in the VR.

scholarly journals Directional Force Feedback: Mechanical Force Concentration for Immersive Experience in Virtual Reality

2019 ◽  
Vol 9 (18) ◽  
pp. 3692 ◽  
Author(s):  
Seonghoon Ban ◽  
Kyung Hoon Hyun
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Force Feedback ◽  
Haptic Feedback ◽  
State Of The Art ◽  
Mechanical Force ◽  
User Studies ◽  
Sense Of Presence ◽  
Novel Method ◽  
The Impact

In recent years, consumer-level virtual-reality (VR) devices and content have become widely available. Notably, establishing a sense of presence is a key objective of VR and an immersive interface with haptic feedback for VR applications has long been in development. Despite the state-of-the-art force feedback research being conducted, a study on directional feedback, based on force concentration, has not yet been reported. Therefore, we developed directional force feedback (DFF), a device that generates directional sensations for virtual-reality (VR) applications via mechanical force concentrations. DFF uses the rotation of motors to concentrate force and deliver directional sensations to the user. To achieve this, we developed a novel method of force concentration for directional sensation; by considering both rotational rebound and gravity, the optimum rotational motor speeds and rotation angles were identified. Additionally, we validated the impact of DFF in a virtual environment, showing that the users’ presence and immersion within VR were higher with DFF than without. The result of the user studies demonstrated that the device significantly improves immersivity of virtual applications.

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