Virtual Reality最新文献

{"title":"Virtual reality games for cognitive rehabilitation of older adults: a review of adaptive games, domains and techniques","authors":"D. E. Guzmán, C. F. Rengifo, J. D. Guzmán, C. E. Garcia Cena","doi":"10.1007/s10055-024-00968-3","DOIUrl":"https://doi.org/10.1007/s10055-024-00968-3","url":null,"abstract":"<p>In recent decades, the senior adults population worldwide has increased, as well as the medical conditions related to aging, such as cognitive decline. Virtual reality (VR) games are a valuable addition to conventional cognitive rehabilitation as they increase engagement to the therapy through customization, socialization, immersion, and feedback. This review, performed according to PRISMA protocol, addresses the following questions: How VR games have been used for cognitive rehabilitation?, What cognitive domains have been addressed by VR games and in which populations have these games been used?, Which features have been considered to improve engagement in VR games for cognitive rehabilitation?, How is the difficulty adjustment of exercises carried out in VR games for cognitive rehabilitation?. We found 25 scientific works related to these questions, 92% of them treating one cognitive domain at a time, despite the fact that the related literature recognizes the value of training multiple domains simultaneously. Our review indicates that, despite the existence of serious VR games for working memory training, such as those described in Flak et al. (Front Psychol 10:807, 2019. https://doi.org/10.3389/fpsyg.2019.00807), to our knowledge, there are no applications that simultaneously address multiple cognitive domains and incorporate dynamic difficulty adjustment, which are important to ensure ecological validity of therapy and therapy adherence, respectively. In addition, we found that games themselves could be used to monitor the user’s progression. It is also important to determine the impact of multiplayer interactions in the game, test difficulty adjustment approaches that use physiological variables, and define difficulty-skill relationships aligned with the user’s preferences. This paper concludes that the main barriers to implement dynamic difficulty adjustment in VR games for cognitive rehabilitation are: (i) the absence of metrics to estimate when the game offers to the players a challenge adapted their skills, and (ii) the lack of a conceptual framework that integrates relevant theories such as state of flow, cognitive load, cognitive rehabilitation, and feedback systems.</p>","PeriodicalId":23727,"journal":{"name":"Virtual Reality","volume":"17 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140569452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Different effects of social intention on movement kinematics when interacting with a human or virtual agent","authors":"","doi":"10.1007/s10055-024-00992-3","DOIUrl":"https://doi.org/10.1007/s10055-024-00992-3","url":null,"abstract":"<h3>Abstract</h3> <p>The execution of object-directed motor actions is known to be influenced by the intention to interact with others. In this study, we tested whether the effects of social intention on the kinematics of object-directed actions depended on whether the task was performed in the presence of a human or a virtual confederate. In two experiments, participants had to grasp a glass and place it to a new position, with either a personal intention (to fill the glass themselves using a bottle) or a social one (to have the glass filled by the human confederate or the virtual agent using the bottle). Experiment 1 showed that the kinematics of the object-directed actions was modulated by the social intention but only when interacting with a human confederate. Experiment 2 showed that the effects of social intention on object-directed actions performance can be improved using feedback-based learning. Specifically, participants proved able to progressively adapt their motor performances as if they were expressing social intention to a virtual confederate as well. These findings emphasize the importance of the modulatory role of social intention on non-verbal motor behaviour, and enrich the understanding of the interaction with virtual agents.</p>","PeriodicalId":23727,"journal":{"name":"Virtual Reality","volume":"1 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140569320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Key determinants of intention to use virtual reality in medical training","authors":"","doi":"10.1007/s10055-024-00990-5","DOIUrl":"https://doi.org/10.1007/s10055-024-00990-5","url":null,"abstract":"<h3>Abstract</h3> <p>Experts have called for virtual reality (VR) training and learning applications that can facilitate the changes needed in training programmes for years to come. To help expedite the adoption process, this study used a mixed-methods approach to identify the key factors that promote intentions to use VR technology in medical training. The qualitative research was based on interviews with five doctors and medical students, which focused on identifying the most significant determinants. Next, a survey was conducted to collect data from 154 medical interns and students in Spanish universities and hospitals, whose responses were processed using partial least squares-structural equation analysis. The limited sample size means this study is exploratory. The results indicate that perceived entertainment significantly strengthens behavioural intention to use VR technology in medical courses. The findings also underline the potential uses of VR learning tools in healthcare contexts and the need to incorporate this technology into medical training.</p>","PeriodicalId":23727,"journal":{"name":"Virtual Reality","volume":"49 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140569455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Behavioral intention, perception and user assessment in an immersive virtual reality environment with CFD simulations","authors":"Serkan Solmaz, Kathrin Gerling, Liesbeth Kester, Tom Van Gerven","doi":"10.1007/s10055-024-00985-2","DOIUrl":"https://doi.org/10.1007/s10055-024-00985-2","url":null,"abstract":"<p>This study explores technology acceptance, perception and user assessment of an immersive virtual reality environment with computational fluid dynamics simulations in engineering education. 57 participants from three different institutions tested the virtual reality application. Partial least squares structural equation modeling and interferential statistics were performed to predict and assess interrelations among constructs. Results show that the learning value, content value, intrinsic motivation and personal innovativeness are underlying factors behind students’ intention to use virtual reality. Pair-wise analysis indicates that users’ perceptions matter and positively affect their attitudes. In addition, the virtual reality application helps students perform significantly better in the post-knowledge test. Findings also highlight that prior experience and interest can affect students’ attitudes and behavioral intentions to accept the virtual reality application in education. Our study can guide lecturers and developers to achieve on-target immersive virtual reality learning environments in higher education.</p>","PeriodicalId":23727,"journal":{"name":"Virtual Reality","volume":"41 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140325214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and emotional responses: is there coherence between what is said and what is felt? A study using biofeedback and virtual reality","authors":"Ademario Santos Tavares, Marcelo M. Soares, Marcio A. Marçal","doi":"10.1007/s10055-024-00944-x","DOIUrl":"https://doi.org/10.1007/s10055-024-00944-x","url":null,"abstract":"<p>Identifying users’ experience when using products is one of the major challenges for design. Analyzing users’ psychophysiological reactions to an experience using biofeedback can produce more reliable results than using subjective evaluations, such as structured interviews and questionnaires. Two case studies were conducted to identify emotions users actually felt and to check whether there is some correspondence with what they reported after using two computational systems. The first system investigated users’ emotions during training on a vehicle driving simulator, and the second analyzed the emotions experienced during a car racing game, both in a virtual reality environment. User’s opinions about their emotional state were obtained using self-report techniques (using the Geneva Emotions Wheel—GEW and Positive and Negative Affective Schedule—PANAS questionnaires) and applying EEG (brain activity with Frontal Alpha Asymmetry Index—FAAI) and infrared thermography (facial thermograms). The training experiment presented the greater concordance between the psychophysiological and the self-report responses. Results evidenced the importance of undertaking multimodal studies in design research to determine users’ emotional experiences in a virtual reality context.</p>","PeriodicalId":23727,"journal":{"name":"Virtual Reality","volume":"95 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140314867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New proxemics in new space: proxemics in VR","authors":"Ikhwan Kim, Junghan Sung","doi":"10.1007/s10055-024-00982-5","DOIUrl":"https://doi.org/10.1007/s10055-024-00982-5","url":null,"abstract":"<p>With the development of computer technology, it is possible to design virtual reality (VR) media that provides services to multiple users. Hall’s proxemics theory, which holds that the distance varies depending on the relationship between people, has been applied when designing VR in such media. However, this concept was usually applied to designs without criticism and without confirming whether proxemic distances established in physical space are equally valid in VR. This study investigated how proxemics in VR activate differently from those in a physical space. We measured the distance and the number of instances of direct contact between people, with 69 participants from Korea and Turkiye. As a result, a proxemics pattern similar to that of a physical space appeared in VR. However, the average distance between participants in the VR was about 160% greater than in the physical space. Also, we could observe direct contact up to 260% more in the VR than in the physical space. We analyzed the collected data using Bayesian ANOVA and t-tests. We could clarify the difference between the two proxemics in physical space and VR, but the reason for the phenomenon has yet to be discovered. However, this study is meaningful because any industry designing VR, such as those in digital games, can directly apply the findings to manipulate multiple users’ emotions and experiences more efficiently. Additionally, this study provides directions for any future studies discussing VR design.</p>","PeriodicalId":23727,"journal":{"name":"Virtual Reality","volume":"44 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140314876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Virtual reality based rehabilitation in adults with chronic neck pain: a systematic review and meta-analysis of randomized clinical trials","authors":"","doi":"10.1007/s10055-024-00979-0","DOIUrl":"https://doi.org/10.1007/s10055-024-00979-0","url":null,"abstract":"<h3>Abstract</h3> <p>Chronic neck pain is one of the most frequent musculoskeletal disorders, with high prevalence worldwide. Rehabilitation is an essential component of therapeutic strategy. Virtual reality based rehabilitation (VRBR) is a powerful distraction technique that could be beneficial for chronic neck pain patients. The objective of this systematic review was to analyse the effectiveness of VRBR in chronic neck pain treatment. We followed the PRISMA guidelines and used four databases (CINAHL, Medline (Via PubMed), Scopus and Web of Science) from their inception to August 2023. Eligibility criteria were established using PICOS. Methodological quality was evaluated with the Downs and Black scale and the risk of bias with the Revised Cochrane risk-of-bias tool. The meta-analysis was performed using the RevMan software. Six studies were included in the systematic review and the meta-analysis. We observed significant differences in favour of VRBR for pain intensity (SMD = − 0.46; 95% CI = − 0.74, − 0.19; <em>p</em> = 0.001), disability (MD = − 2.84; 95% CI = − 4.23, − 1.45; <em>p</em> &lt; 0.0001), global perceived effect (MD = 0.49; 95% CI = 0.25, 0.72; <em>p</em> &lt; 0.0001) and patient satisfaction (MD = 0.62; 95% CI = 0.38, 0.86; <em>p</em> &lt; 0.00001). However, at short-term follow-up significant differences were only obtained for disability (MD = − 3.52; 95% CI = − 5.85, − 1.20; <em>p</em> = 0.003). VRBR can significantly improve pain intensity, disability, global perceived effect and patient satisfaction. The small number of articles included in the analysis is a limitation, even considering the good methodological quality of these studies. Investigating the effects of VRBR on mid and long-term follow-up and exploring different types of VR are needed.</p> <p><em>PROSPERO database, registration number ID</em>: CRD42020222129.</p>","PeriodicalId":23727,"journal":{"name":"Virtual Reality","volume":"139 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140314872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The user experience of distal arm-level vibrotactile feedback for interactions with virtual versus physical displays","authors":"","doi":"10.1007/s10055-024-00977-2","DOIUrl":"https://doi.org/10.1007/s10055-024-00977-2","url":null,"abstract":"<h3>Abstract</h3> <p>Haptic feedback, a natural component of our everyday interactions in the physical world, requires careful design in virtual environments. However, feedback location can vary from the fingertip to the finger, hand, and arm due to heterogeneous input/output technology used for virtual environments, from joysticks to controllers, gloves, armbands, and vests. In this work, we report on the user experience of touch interaction with virtual displays when vibrotactile feedback is delivered on the finger, wrist, and forearm. In a first controlled experiment with fourteen participants and virtual displays rendered through a head-mounted device, we report a user experience characterized by high perceived enjoyment, confidence, efficiency, and integration as well as low perceived distraction, difficulty, and confusion. Moreover, we highlight participants’ preferences for vibrotactile feedback on the finger compared to other locations on the arm or through the VR controller, respectively. In a follow-up experiment with fourteen new participants and physical touchscreens, we report a similar preference for the finger, but also specific nuances of the self-reported experience, not observed in the first experiment with virtual displays. Overall, our results depict an enhanced user experience when distal vibrotactile feedback is available over no vibrations at all during interactions with virtual and physical displays, for which we propose future work opportunities for augmented interactions in virtual worlds.</p>","PeriodicalId":23727,"journal":{"name":"Virtual Reality","volume":"86 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140204178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of vection type and postural instability on cybersickness","authors":"Joel Teixeira, Sebastien Miellet, Stephen Palmisano","doi":"10.1007/s10055-024-00969-2","DOIUrl":"https://doi.org/10.1007/s10055-024-00969-2","url":null,"abstract":"<p>This study directly compared the novel <i>unexpected vection hypothesis</i> and postural instability-based explanations of cybersickness in virtual reality (VR) using head-mounted displays (HMD) for the first time within a commercial VR game. A total of 40 participants (19 males and 21 females) played an HMD-VR game (<i>Aircar</i>) for up to 14 min, or until their first experience of cybersickness. Based on their self-reports, 24 of these participants were classified as being ‘sick’ during the experiment, with the remainder being classified as ‘well’. Consistent with the <i>unexpected vection hypothesis</i>, we found that: (1) ‘sick’ participants were significantly more likely to report unexpected vection (i.e., an experience of self-motion that was different to what they had been expecting), and (2) sickness severity increased (exponentially) with the strength of any unexpected (but not expected) vection. Our results also supported the predictions of <i>postural instability theory</i>, finding that the onset of cybersickness was typically preceded by an increase in participants’ postural instability. However, when both sway and vection measures were combined, only unexpected vection was found to significantly predict the occurrence of sickness. These findings highlight the importance of unusual vection experiences and postural instability in understanding cybersickness. However, they suggest that developers should be able to make use of expected experiences of vection to safely enhance HMD-VR.</p>","PeriodicalId":23727,"journal":{"name":"Virtual Reality","volume":"295 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140204278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Proteus effect or bodily affordance? The influence of virtual high-heels on gait behavior","authors":"","doi":"10.1007/s10055-024-00966-5","DOIUrl":"https://doi.org/10.1007/s10055-024-00966-5","url":null,"abstract":"<h3>Abstract</h3> <p>Shoes are an important part of the fashion industry, stereotypically affect our self-awareness as well as external perception, and can even biomechanically modify our gait pattern. Immersive Virtual Reality (VR) enables users not only to explore virtual environments, but also to control an avatar as a proxy for themselves. These avatars can wear any kind of shoe which might similarly affect self-awareness due to the Proteus Effect and even cause a bodily affordance to change the gait pattern. Bodily affordance describes a behavioral change in accordance with the expected constraints of the avatar a user is embodied with. In this article, we present the results of three user studies investigating potential changes in the gait pattern evoked by wearing virtual high-heels. Two user studies targeted female participants and one user study focused male participants. The participants wore either virtual sneakers or virtual high-heels while constantly wearing sneakers or socks in reality. To measure the gait pattern, the participants walked on a treadmill that also was added to the virtual environment. We measured significant differences in stride length and in the flexion of the hips and knees at heel strike and partly at toe off. Also, participants reported to walk more comfortably in the virtual sneakers in contrast to the virtual high-heels. This indicates a strong acceptance of the virtual shoes as their real shoes and hence suggests the existence of a bodily affordance. While sparking a discussion about the boundaries as well as aspects of the Proteus Effect and providing another insight into the effects of embodiment in VR, our results might also be important for researchers and developers. </p>","PeriodicalId":23727,"journal":{"name":"Virtual Reality","volume":"51 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140325215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}