Virtual Reality最新文献_第4页

Social cognition training using virtual reality for people with schizophrenia: a scoping review 利用虚拟现实技术对精神分裂症患者进行社会认知训练：范围界定综述

IF 4.2 3区计算机科学

Virtual Reality Pub Date : 2024-05-25 DOI: 10.1007/s10055-024-01010-2

D. A. Pérez-Ferrara, G. Y. Flores-Medina, E. Landa-Ramírez, D. J. González-Sánchez, J. A. Luna-Padilla, A. L. Sosa-Millán, A. Mondragón-Maya

{"title":"Social cognition training using virtual reality for people with schizophrenia: a scoping review","authors":"D. A. Pérez-Ferrara, G. Y. Flores-Medina, E. Landa-Ramírez, D. J. González-Sánchez, J. A. Luna-Padilla, A. L. Sosa-Millán, A. Mondragón-Maya","doi":"10.1007/s10055-024-01010-2","DOIUrl":"https://doi.org/10.1007/s10055-024-01010-2","url":null,"abstract":"To date, many interventions for social cognition have been developed. Nevertheless, the use of social cognition training with virtual reality (SCT-VR) in schizophrenia is a recent field of study. Therefore, a scoping review is a suitable method to examine the extent of existing literature, the characteristics of the studies, and the SCT-VR. Additionally, it allows us to summarize findings from a heterogeneous body of knowledge and identify gaps in the literature favoring the planning and conduct of future research. The aim of this review was to explore and describe the characteristics of SCT-VR in schizophrenia. The searched databases were MEDLINE, PsycInfo, Web of Science, and CINAHL. This scoping review considered experimental, quasi-experimental, analytical observational and descriptive observational study designs. The full text of selected citations was assessed by two independent reviewers. Data were extracted from papers included in the scoping review by two independent reviewers. We identified 1,407 records. A total of twelve studies were included for analyses. Study designs were variable, most research was proof-of-concept or pilot studies. Most SCT-VR were immersive and targeted interventions. Number of sessions ranged from 9 to 16, and the duration of each session ranged from 45 to 120 min. Some studies reported a significant improvement in emotion recognition and/or theory of mind. However, SCT-VR is a recent research field in which the heterogeneity in methodological approaches is evident and has prevented the reaching of robust conclusions. Preliminary evidence has shown that SCT-VR could represent a feasible and promising approach for improving SC deficits in schizophrenia.","PeriodicalId":23727,"journal":{"name":"Virtual Reality","volume":"25 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141145869","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}

引用次数: 0

Replicating outdoor environments using VR and ambisonics: a methodology for accurate audio-visual recording, processing and reproduction 利用虚拟现实和环境声复制室外环境：准确记录、处理和再现视听的方法论

IF 4.2 3区计算机科学

Virtual Reality Pub Date : 2024-05-17 DOI: 10.1007/s10055-024-01003-1

Fotis Georgiou, Claudia Kawai, Beat Schäffer, Reto Pieren

引用次数: 0

Not just cybersickness: short-term effects of popular VR game mechanics on physical discomfort and reaction time 不仅仅是晕机：流行的 VR 游戏机制对身体不适和反应时间的短期影响

IF 4.2 3区计算机科学

Virtual Reality Pub Date : 2024-05-15 DOI: 10.1007/s10055-024-01007-x

Sara Vlahovic, Lea Skorin-Kapov, Mirko Suznjevic, Nina Pavlin-Bernardic

{"title":"Not just cybersickness: short-term effects of popular VR game mechanics on physical discomfort and reaction time","authors":"Sara Vlahovic, Lea Skorin-Kapov, Mirko Suznjevic, Nina Pavlin-Bernardic","doi":"10.1007/s10055-024-01007-x","DOIUrl":"https://doi.org/10.1007/s10055-024-01007-x","url":null,"abstract":"Uncomfortable sensations that arise during virtual reality (VR) use have always been among the industry’s biggest challenges. While certain VR-induced effects, such as cybersickness, have garnered a lot of interest from academia and industry over the years, others have been overlooked and underresearched. Recently, the research community has been calling for more holistic approaches to studying the issue of VR discomfort. Focusing on active VR gaming, our article presents the results of two user studies with a total of 40 participants. Incorporating state-of-the-art VR-specific measures (the Simulation Task Load Index—SIM-TLX, Cybersickness Questionnaire—CSQ, Virtual Reality Sickness Questionnaire—VRSQ) into our methodology, we examined workload, musculoskeletal discomfort, device-related discomfort, cybersickness, and changes in reaction time following VR gameplay. Using a set of six different active VR games (three per study), we attempted to quantify and compare the prevalence and intensity of VR-induced symptoms across different genres and game mechanics. Varying between individuals, as well as games, the diverse symptoms reported in our study highlight the importance of including measures of VR-induced effects other than cybersickness into VR gaming user studies, while questioning the suitability of the Simulator Sickness Questionnaire (SSQ)—arguably the most prevalent measure of VR discomfort in the field—for use with active VR gaming scenarios.","PeriodicalId":23727,"journal":{"name":"Virtual Reality","volume":"304 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140939691","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}

引用次数: 0

Multimodal emotion classification using machine learning in immersive and non-immersive virtual reality 在沉浸式和非沉浸式虚拟现实中使用机器学习进行多模态情感分类

IF 4.2 3区计算机科学

Virtual Reality Pub Date : 2024-05-06 DOI: 10.1007/s10055-024-00989-y

Rodrigo Lima, Alice Chirico, Rui Varandas, Hugo Gamboa, Andrea Gaggioli, Sergi Bermúdez i Badia

{"title":"Multimodal emotion classification using machine learning in immersive and non-immersive virtual reality","authors":"Rodrigo Lima, Alice Chirico, Rui Varandas, Hugo Gamboa, Andrea Gaggioli, Sergi Bermúdez i Badia","doi":"10.1007/s10055-024-00989-y","DOIUrl":"https://doi.org/10.1007/s10055-024-00989-y","url":null,"abstract":"Affective computing has been widely used to detect and recognize emotional states. The main goal of this study was to detect emotional states using machine learning algorithms automatically. The experimental procedure involved eliciting emotional states using film clips in an immersive and non-immersive virtual reality setup. The participants’ physiological signals were recorded and analyzed to train machine learning models to recognize users’ emotional states. Furthermore, two subjective ratings emotional scales were provided to rate each emotional film clip. Results showed no significant differences between presenting the stimuli in the two degrees of immersion. Regarding emotion classification, it emerged that for both physiological signals and subjective ratings, user-dependent models have a better performance when compared to user-independent models. We obtained an average accuracy of 69.29 ± 11.41% and 71.00 ± 7.95% for the subjective ratings and physiological signals, respectively. On the other hand, using user-independent models, the accuracy we obtained was 54.0 ± 17.2% and 24.9 ± 4.0%, respectively. We interpreted these data as the result of high inter-subject variability among participants, suggesting the need for user-dependent classification models. In future works, we intend to develop new classification algorithms and transfer them to real-time implementation. This will make it possible to adapt to a virtual reality environment in real-time, according to the user’s emotional state.","PeriodicalId":23727,"journal":{"name":"Virtual Reality","volume":"107 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140882288","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}

引用次数: 0

Tracking and co-location of global point clouds for large-area indoor environments 大面积室内环境中的全球点云跟踪与共定位

IF 4.2 3区计算机科学

Virtual Reality Pub Date : 2024-05-04 DOI: 10.1007/s10055-024-01004-0

Nick Michiels, Lode Jorissen, Jeroen Put, Jori Liesenborgs, Isjtar Vandebroeck, Eric Joris, Frank Van Reeth

{"title":"Tracking and co-location of global point clouds for large-area indoor environments","authors":"Nick Michiels, Lode Jorissen, Jeroen Put, Jori Liesenborgs, Isjtar Vandebroeck, Eric Joris, Frank Van Reeth","doi":"10.1007/s10055-024-01004-0","DOIUrl":"https://doi.org/10.1007/s10055-024-01004-0","url":null,"abstract":"Extended reality (XR) experiences are on the verge of becoming widely adopted in diverse application domains. An essential part of the technology is accurate tracking and localization of the headset to create an immersive experience. A subset of the applications require perfect co-location between the real and the virtual world, where virtual objects are aligned with real-world counterparts. Current headsets support co-location for small areas, but suffer from drift when scaling up to larger ones such as buildings or factories. This paper proposes tools and solutions for this challenge by splitting up the simultaneous localization and mapping (SLAM) into separate mapping and localization stages. In the pre-processing stage, a feature map is built for the entire tracking area. A global optimizer is applied to correct the deformations caused by drift, guided by a sparse set of ground truth markers in the point cloud of a laser scan. Optionally, further refinement is applied by matching features between the ground truth keyframe images and their rendered-out SLAM estimates of the point cloud. In the second, real-time stage, the rectified feature map is used to perform localization and sensor fusion between the global tracking and the headset. The results show that the approach achieves robust co-location between the virtual and the real 3D environment for large and complex tracking environments.","PeriodicalId":23727,"journal":{"name":"Virtual Reality","volume":"18 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140882151","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}

引用次数: 0

PublicVR: a virtual reality exposure therapy intervention for adults with speech anxiety PublicVR：针对患有言语焦虑症的成年人的虚拟现实暴露疗法干预措施

IF 4.2 3区计算机科学

Virtual Reality Pub Date : 2024-04-30 DOI: 10.1007/s10055-024-00998-x

Fotios Spyridonis, Damon Daylamani-Zad, James Nightingale

{"title":"PublicVR: a virtual reality exposure therapy intervention for adults with speech anxiety","authors":"Fotios Spyridonis, Damon Daylamani-Zad, James Nightingale","doi":"10.1007/s10055-024-00998-x","DOIUrl":"https://doi.org/10.1007/s10055-024-00998-x","url":null,"abstract":"Speech anxiety, or Glossophobia, currently affects approximately 75% of the population with potentially severe negative effects on those with this condition. There are several treatments currently available with research showing that the use of Virtual Reality (VR) as a non-pharmacologic treatment can have positive effects on individuals suffering from such social phobias. However, there is a significant lack of treatments currently available for speech anxiety, even though such a large number of the population are affected by it. In this paper, we aim to contribute to efforts to improve the effects of speech anxiety through a VR intervention. Our VR solution was designed following the Exposure Therapy approach for treating social anxiety disorders. The evaluation of this work was twofold: A. to assess the ability of our solution to positively change participants’ perception of factors related to non-verbal communication contributing to anxiety toward public speaking, and B. to determine whether it is able to induce a sense of presence. We carried out an empirical evaluation study that measured participants’ self-reported anxiety level towards public speaking using the Personal Report of Public Speaking Anxiety and their perceived sense of presence using the iGroup Presence Questionnaire. Our results demonstrate the potential of VR Exposure Therapy solutions to assist towards positively changing perception of factors related to non-verbal communication skills that contribute to increasing public speaking anxiety for participants suffering from self-reported speech anxiety symptoms. Our findings are of wider importance as they contribute to ongoing efforts to improve social anxiety-related phobias.","PeriodicalId":23727,"journal":{"name":"Virtual Reality","volume":"49 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140841121","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}

引用次数: 0

Evaluation of visual, auditory, and olfactory stimulus-based attractors for intermittent reorientation in virtual reality locomotion 评估虚拟现实运动中基于视觉、听觉和嗅觉刺激的间歇性方向调整吸引器

IF 4.2 3区计算机科学

Virtual Reality Pub Date : 2024-04-26 DOI: 10.1007/s10055-024-00997-y

Jieun Lee, Seokhyun Hwang, Kyunghwan Kim, SeungJun Kim

{"title":"Evaluation of visual, auditory, and olfactory stimulus-based attractors for intermittent reorientation in virtual reality locomotion","authors":"Jieun Lee, Seokhyun Hwang, Kyunghwan Kim, SeungJun Kim","doi":"10.1007/s10055-024-00997-y","DOIUrl":"https://doi.org/10.1007/s10055-024-00997-y","url":null,"abstract":"In virtual reality, redirected walking (RDW) enables users to stay within the tracking area while feeling that they are traveling in a virtual space that is larger than the physical space. RDW uses a visual attractor to the user’s sight and scene manipulation for intermittent reorientation. However, repeated usage can hinder the virtual world immersion and weaken the reorientation performance. In this study, we propose using sounds and smells as alternative stimuli to draw the user’s attention implicitly and sustain the attractor’s performance for intermittent reorientation. To achieve this, we integrated visual, auditory, and olfactory attractors into an all-in-one stimulation system. Experiments revealed that the auditory attractor caused the fastest reorientation, the olfactory attractor induced the widest angular difference, and the attractor with the combined auditory and olfactory stimuli induced the largest angular speed, keeping users from noticing the manipulation. The findings demonstrate the potential of nonvisual attractors to reorient users in situations requiring intermittent reorientation.","PeriodicalId":23727,"journal":{"name":"Virtual Reality","volume":"36 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140806506","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}

引用次数: 0

Simulating vision impairment in virtual reality: a comparison of visual task performance with real and simulated tunnel vision 在虚拟现实中模拟视力障碍：比较真实和模拟隧道视力下的视觉任务表现

IF 4.2 3区计算机科学

Virtual Reality Pub Date : 2024-04-16 DOI: 10.1007/s10055-024-00987-0

Alexander Neugebauer, Nora Castner, Björn Severitt, Katarina Stingl, Iliya Ivanov, Siegfried Wahl

{"title":"Simulating vision impairment in virtual reality: a comparison of visual task performance with real and simulated tunnel vision","authors":"Alexander Neugebauer, Nora Castner, Björn Severitt, Katarina Stingl, Iliya Ivanov, Siegfried Wahl","doi":"10.1007/s10055-024-00987-0","DOIUrl":"https://doi.org/10.1007/s10055-024-00987-0","url":null,"abstract":"In this work, we explore the potential and limitations of simulating gaze-contingent tunnel vision conditions using Virtual Reality (VR) with built-in eye tracking technology. This approach promises an easy and accessible way of expanding study populations and test groups for visual training, visual aids, or accessibility evaluations. However, it is crucial to assess the validity and reliability of simulating these types of visual impairments and evaluate the extend to which participants with simulated tunnel vision can represent real patients. Two age-matched participant groups were acquired: The first group (n = 8, aged 20–60, average 49.1 ± 13.2) consisted of patients diagnosed with Retinitis pigmentosa (RP). The second group (n = 8, aged 27–59, average 46.5 ± 10.8) consisted of visually healthy participants with simulated tunnel vision. Both groups carried out different visual tasks in a virtual environment for 30 min per day over the course of four weeks. Task performances as well as gaze characteristics were evaluated in both groups over the course of the study. Using the ’two one-sided tests for equivalence’ method, the two groups were found to perform similar in all three visual tasks. Significant differences between groups were found in different aspects of their gaze behavior, though most of these aspects seem to converge over time. Our study evaluates the potential and limitations of using Virtual Reality technology to simulate the effects of tunnel vision within controlled virtual environments. We find that the simulation accurately represents performance of RP patients in the context of group averages, but fails to fully replicate effects on gaze behavior.","PeriodicalId":23727,"journal":{"name":"Virtual Reality","volume":"12 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140569448","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}

引用次数: 0

Augmented reality presentation system of skeleton image based on biomedical features 基于生物医学特征的骨架图像增强现实演示系统

IF 4.2 3区计算机科学

Virtual Reality Pub Date : 2024-04-16 DOI: 10.1007/s10055-024-00976-3

Yuqing Sun, Tianran Yuan, Yimin Wang, Quanping Sun, Zhiwei Hou, Juan Du

{"title":"Augmented reality presentation system of skeleton image based on biomedical features","authors":"Yuqing Sun, Tianran Yuan, Yimin Wang, Quanping Sun, Zhiwei Hou, Juan Du","doi":"10.1007/s10055-024-00976-3","DOIUrl":"https://doi.org/10.1007/s10055-024-00976-3","url":null,"abstract":"Aimed at limitations in the description and expression of three-dimensional (3D) physical information in two-dimentsional (2D) medical images, feature extraction and matching method based on the biomedical characteristics of skeletons is employed in this paper to map the 2D images of skeletons into a 3D digital model. Augmented reality technique is used to realize the interactive presentation of skeleton models. Main contents of this paper include: Firstly, a three-step reconstruction method is used to process the bone CT image data to obtain its three-dimensional surface model, and the corresponding 2D–3D bone library is established based on the identification index of the 2D image and the 3D model; then, a fast and accurate feature extraction and matching algorithm is developed to realize the recognition, extraction, and matching of 2D skeletal features, and determine the corresponding 3D skeleton model according to the matching result. Finally, based on the augmented reality technique, an interactive immersive presentation system is designed to achieve visual effects of the virtual human bone model superimposed and rendered in the world scenes, which improves the effectiveness of information expression and transmission, as well as the user's immersion and embodied experience.","PeriodicalId":23727,"journal":{"name":"Virtual Reality","volume":"29 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140614034","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}

引用次数: 0

The geometry of the vergence-accommodation conflict in mixed reality systems 混合现实系统中辐辏-适应冲突的几何原理

IF 4.2 3区计算机科学

Virtual Reality Pub Date : 2024-04-11 DOI: 10.1007/s10055-024-00991-4

Xiaoye Michael Wang, Daniel Southwick, Ian Robinson, Michael Nitsche, Gabby Resch, Ali Mazalek, Timothy N. Welsh

{"title":"The geometry of the vergence-accommodation conflict in mixed reality systems","authors":"Xiaoye Michael Wang, Daniel Southwick, Ian Robinson, Michael Nitsche, Gabby Resch, Ali Mazalek, Timothy N. Welsh","doi":"10.1007/s10055-024-00991-4","DOIUrl":"https://doi.org/10.1007/s10055-024-00991-4","url":null,"abstract":"Mixed reality technologies, such as virtual (VR) and augmented (AR) reality, present promising opportunities to advance education and professional training due to their adaptability to diverse contexts. Distortions in the perceived distance in such mediated conditions, however, are well documented and have imposed nontrivial challenges that complicate and limit transferring task performance in a virtual setting to the unmediated reality (UR). One potential source of the distance distortion is the vergence-accommodation conflict—the discrepancy between the depth specified by the eyes’ accommodative state and the angle at which the eyes converge to fixate on a target. The present study involved the use of a manual pointing task in UR, VR, and AR to quantify the magnitude of the potential depth distortion in each modality. Conceptualizing the effect of vergence-accommodation offset as a constant offset to the vergence angle, a model was developed based on the stereoscopic viewing geometry. Different versions of the model were used to fit and predict the behavioral data for all modalities. Results confirmed the validity of the conceptualization of vergence-accommodation as a device-specific vergence offset, which predicted up to 66% of the variance in the data. The fitted parameters indicate that, due to the vergence-accommodation conflict, participants’ vergence angle was driven outwards by approximately 0.2°, which disrupted the stereoscopic viewing geometry and produced distance distortion in VR and AR. The implications of this finding are discussed in the context of developing virtual environments that minimize the effect of depth distortion.","PeriodicalId":23727,"journal":{"name":"Virtual Reality","volume":"49 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140569463","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}

引用次数: 0