Usability Testing of Virtual Reality Applications-The Pilot Study.

The need for objective data-driven usability testing of VR applications is becoming more tangible with the rapid development of numerous VR applications and their increased accessibility. Traditional methods of testing are too time and resource consuming and might provide results that are highly subjective. Thus, the aim of this article is to explore the possibility of automation of usability testing of VR applications by using objective features such as HMD built-in head and hands tracking, EEG sensor, video recording, and other measurable parameters in addition to automated analysis of subjective data provided in questionnaires. For this purpose, a simple VR application was created which comprised relatively easy tasks that did not generate stress for the users. Fourteen volunteers took part in the study and their signals were monitored to acquire objective automated data. At the same time the observer was taking notes of subjects' behaviour, and their subjective opinions about the experience were recorded in a post-experiment questionnaire. The results acquired from signal monitoring and questionnaires were juxtaposed with observation and post-interview results to confirm the validity and efficacy of automated usability testing. The results were very promising, proving that automated usability testing of VR applications is potentially achievable.

Virtual Reality-A Supplement to Posturography or a Novel Balance Assessment Tool?

Virtual reality (VR) is a well-established technology in medicine. Head-mounted displays (HMDs) have made VR more accessible in many branches of medical research. However, its application in balance evaluation has been vague, and comprehensive literature on possible applications of VR in posture measurement is scarce. The aim of this review is to conduct a literature search on the application of immersive VR delivered using a head-mounted display in posturographic measurements. A systematic search of two databases, PubMed and Scopus, using the keywords "virtual reality" and "posturography," was performed following PRISMA guidelines for systematic reviews. Initial search results returned 89 non-duplicate records. Two reviewers independently screened the abstracts. Sixteen papers fulfilled the inclusion criteria and none of the exclusion criteria and were selected for complete text retrieval. An additional 16 records were identified from citation searching. Ultimately, 21 studies were included in this review. virtual reality is often used as additional visual stimuli in static and dynamic posturography evaluation. Only one study has attempted to evaluate a VR environment in a head-mounted display as an independent method in the assessment of posture. Further research should be conducted to assess HMD VR as a standalone posturography replacement.

The effect of Immersive Virtual Reality on balance: an exploratory study on the feasibility of head-mounted displays for balance evaluation.

Global interest in applying virtual reality (VR) in research and medicine has grown significantly, with potential benefits for patients suffering from balance disorders, instability, and a high risk of falling. This exploratory study assesses the impact of immersive VR (IVR) delivered through a head-mounted display (HMD) on balance and explores the feasibility of using the HMD VR unit as a standalone posturography tool. Using the Meta Quest 2 HMD and a mid-range Android smartphone equipped with standard sensors, the research employed a VR environment that simulated a ship at sea, with thirty-eight healthy participants with no otoneurologic abnormalities. Measurements were conducted in repeated trials, including static assessments on both stable ground and foam, as well as a 3-m walk. This was conducted in two settings: one within a VR environment with three different intensity levels and the other in non-VR settings. Statistical analysis and clinical evaluation revealed that IVR with HMD influences head-level sway velocity, which correlates with increased visual disturbance, suggesting its potential as a low-risk standalone posturography tool.

Universal design and empathic design for engineers.

This article explores the relevance of universal design and empathic design in education. The universal design focuses on creating accessible and usable products, environments, and systems for individuals with diverse abilities. Empathy, on the other hand, involves understanding and sharing the feelings of others, encompassing cognitive, emotional, and compassionate empathy. The article investigates the application of empathy in design, particularly its importance for engineers. Teaching empathy to engineers is emphasized as a crucial aspect. By developing empathic skills, engineers gain a deeper understanding of user needs and perspectives, leading to more inclusive and user-centered design solutions. Effective communication techniques such as asking open-ended questions, active listening, observation, and perspective-taking are explored to enhance empathy in communication. The article also explores methods for measuring empathy, thus enabling engineers to assess the effectiveness of their empathic design approaches. The challenges facing students, teachers, and university authorities in implementing such courses are also bulleted. Med Pr. 2023;74(3):211-25.

Enhancing empathy through virtual reality: Developing a universal design training application for students.

The lack of empathy towards disability is a significant societal issue that hampers inclusivity and understanding. Many struggle to comprehend the daily challenges and experiences faced by people with disabilities, leading to ignorance, prejudice, and exclusion. However, empathy plays a pivotal role in addressing this problem and serves as the foundation for developing and creating better products, services, and environments. This article explores the potential of developing virtual reality (VR) applications to enhance students' empathy towards individuals with disabilities. By increasing empathy levels, students are expected to gain significant qualifications in universal design (UD). The full application development process covers the most suitable head-mounted display (HMD) set. The implementation methodology using the Unity programming platform, the approach adopted for conducting classes using the developed VR application, and the deployment stage. Testing was successfully conducted on a student population, receiving positive user feedback. Through the integration of VR technology, the authors thoroughly describe how to address the empathy gap and equip students with essential skills for inclusive and accessible design. The findings presented in this study provide valuable guidance for educators and developers interested in harnessing VR's potential to foster empathy and advance universal design practices. With the presented methodology and proposed application, the authors demonstrate the effectiveness of VR applications in elevating students' empathy levels, consequently enhancing their qualifications in universal design. Med Pr. 2023;74(3):199-210.