scholarly journals The comparability of consumers’ behavior in virtual reality and real life: A validation study of virtual reality based on a ranking task

2021 ◽  
Vol 87 ◽  
pp. 104071
Author(s):  
Chengyan Xu ◽  
Yasemin Demir-Kaymaz ◽  
Christina Hartmann ◽  
Marino Menozzi ◽  
Michael Siegrist
Author(s):  
Yu-Sheng Yang ◽  
Alicia M. Koontz ◽  
Yu-Hsuan Hsiao ◽  
Cheng-Tang Pan ◽  
Jyh-Jong Chang

Maneuvering a wheelchair is an important necessity for the everyday life and social activities of people with a range of physical disabilities. However, in real life, wheelchair users face several common challenges: articulate steering, spatial relationships, and negotiating obstacles. Therefore, our research group has developed a head-mounted display (HMD)-based intuitive virtual reality (VR) stimulator for wheelchair propulsion. The aim of this study was to investigate the feasibility and efficacy of this VR stimulator for wheelchair propulsion performance. Twenty manual wheelchair users (16 men and 4 women) with spinal cord injuries ranging from T8 to L2 participated in this study. The differences in wheelchair propulsion kinematics between immersive and non-immersive VR environments were assessed using a 3D motion analysis system. Subjective data of the HMD-based intuitive VR stimulator were collected with a Presence Questionnaire and individual semi-structured interview at the end of the trial. Results indicated that propulsion performance was very similar in terms of start angle (p = 0.34), end angle (p = 0.46), stroke angle (p = 0.76), and shoulder movement (p = 0.66) between immersive and non-immersive VR environments. In the VR episode featuring an uphill journey, an increase in propulsion speed (p < 0.01) and cadence (p < 0.01) were found, as well as a greater trunk forward inclination (p = 0.01). Qualitative interviews showed that this VR simulator made an attractive, novel impression and therefore demonstrated the potential as a tool for stimulating training motivation. This HMD-based intuitive VR stimulator can be an effective resource to enhance wheelchair maneuverability experiences.


2021 ◽  
Vol 5 (CHI PLAY) ◽  
pp. 1-24
Author(s):  
Andrey Krekhov ◽  
Katharina Emmerich ◽  
Ronja Rotthaler ◽  
Jens Krueger

Escape rooms exist in various forms, including real-life facilities, board games, and digital implementations. The underlying idea is always the same: players have to solve many diverse puzzles to (virtually) escape from a locked room. Within the last decade, we witnessed a rapidly increasing popularity of such games, which also amplified the amount of related research. However, the respective academic landscape is mostly fragmented in its current state, lacking a common model and vocabulary that would withstand these games' variety. This manuscript aims to establish such a foundation for the analysis and construction of escape rooms. In a first step, we derive a high-level design framework from prior literature. Then, as our main contribution, we establish an atomic puzzle taxonomy that closes the gap between the analog and digital domains. The taxonomy is developed in multiple steps: we compose a basic structure based on previous literature and systematically refine it by analyzing 39 analog and digital escape room games, including recent virtual reality representatives. The final taxonomy consists of mental, physical, and emotional challenges, thereby providing a robust and approachable basis for future works across all application domains that deal with escape rooms or puzzles in general.


10.2196/17807 ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. e17807 ◽  
Author(s):  
Philip Lindner ◽  
Alexander Rozental ◽  
Alice Jurell ◽  
Lena Reuterskiöld ◽  
Gerhard Andersson ◽  
...  

Background Virtual reality exposure therapy is an efficacious treatment of anxiety disorders, and recent research suggests that such treatments can be automated, relying on gamification elements instead of a real-life therapist directing treatment. Such automated, gamified treatments could be disseminated without restrictions, helping to close the treatment gap for anxiety disorders. Despite initial findings suggesting high efficacy, very is little is known about how users experience this type of intervention. Objective The aim of this study was to examine user experiences of automated, gamified virtual reality exposure therapy using in-depth qualitative methods. Methods Seven participants were recruited from a parallel clinical trial comparing automated, gamified virtual reality exposure therapy for spider phobia against an in vivo exposure equivalent. Participants received the same virtual reality treatment as in the trial and completed a semistructured interview afterward. The transcribed material was analyzed using thematic analysis. Results Many of the uncovered themes pertained directly or indirectly to a sense of presence in the virtual environment, both positive and negative. The automated format was perceived as natural and the gamification elements appear to have been successful in framing the experience not as psychotherapy devoid of a therapist but rather as a serious game with a psychotherapeutic goal. Conclusions Automated, gamified virtual reality exposure therapy appears to be an appealing treatment modality and to work by the intended mechanisms. Findings from the current study may guide the next generation of interventions and inform dissemination efforts and future qualitative research into user experiences.


Author(s):  
Irina Kulikovskaya ◽  
Liudmila Kudinova ◽  
Maria Guryeva ◽  
AF AF
Keyword(s):  

Author(s):  
Manoj Srinivasan ◽  
Syed T. Mubarrat ◽  
Quentin Humphrey ◽  
Thomas Chen ◽  
Kieran Binkley ◽  
...  

In this study, we developed a low-cost simulated testbed of a physically interactive virtual reality (VR) system and evaluated its efficacy as an occupational virtual trainer for human-robot collaborative (HRC) tasks. The VR system could be implemented in industrial training applications for sensorimotor skill acquisitions and identifying potential task-, robot-, and human-induced hazards in the industrial environments. One of the challenges in designing and implementing such simulation testbed is the effective integration of virtual and real objects and environment, including human movement biomechanics. Therefore, this study aimed to compare the movement kinematics (joint angles) and kinetics (center of pressure) of the human participants while performing pick-and-place lifting tasks with and without using a physically interactive VR testbed. Results showed marginal differences in human movement kinematics and kinetics between real and virtual environment tasks, suggesting the effective transfer of training benefits from VR to real-life situations.


Author(s):  
Esther Grassian ◽  
Rhonda Trueman

Virtual worlds offer synchronous (simultaneous) real life participation through virtual reality, combining the two to provide convenient and low-cost options for librarians’ professional development. This chapter explores the use of virtual worlds for meetings, training, conferences, discussions, mentoring, networking, and peer-to-peer information sharing, with a focus on the 3D virtual world of Second Life. Definitions of “professional development” and “virtual worlds” precede discussion of the issues surrounding the use of this type of environment for a variety of training events and activities to support and encourage ongoing expansion of knowledge, innovation, and creativity among librarians. This chapter also includes information about planning and implementing professional development sessions in this arena, along with information on effective methods for publicizing these activities for parties interested in using virtual worlds for professional development. For those interested in attending professional development opportunities in virtual worlds, the chapter provides information on how to discover and choose useful activities and events in virtual worlds.


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