Download or read book Task Performance in Virtual Environments written by Michael J. Singer and published by . This book was released on 1995 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Task Performance in Virtual Environments written by Michael J. Singer and published by . This book was released on 1995 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spatial Task Performance in Virtual Geographic Environments written by Adam John Rousell and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: It is well documented that within Virtual Environments performance in cognitive tasks is diminished, and with the continued use of such environments to train people in various skillsets it is important that this problem be addressed. In this thesis, two areas of spatial cognition are addressed: navigation and distance estimation. Unlike many previous studies, the experiments conducted here are in a large-scale virtual rural environment which poses problems due to the large distances involved and the unrestricted movement of people through it. A virtual representation of the Sorbas region in Spain was produced using Blueberry3D, VegaPrime and ArcMap. Attempts to improve performance were made by the display of information to the user: an overview map to aid in distance estimations; and geo-located 'factoids', or info-marks, to aid in navigation. Analysis was also performed to extract rural environment features that could fall into the classifications of the Urban Image Theory, and a novel visio-analytic approach conducted to analyse track log data collected from the navigation task. Results indicate that neither of the two tools implemented had much effect on user performance. However, a key finding was that the use of both quantitative and qualitative analysis is important in such research, as although quantitative analysis indicated only some significant results, the qualitative analysis highlighted that when the tools were presented users felt far more confident in their results. The visio-analytical approach adopted proved to be extremely useful in identifying performance characteristics that would have been missed by using quantitative analysis alone.
Download or read book Telepresence and Performance in an Immersive Virtual Environment and Sporting Task written by Ruiqi Ma and published by . This book was released on 2002 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: virtual reality, teleoperation, synthetic environment, virtual task performance.
Download or read book Virtual Reality Training the Effect of Presence on Task Performance written by Philip Darrel Tidwell and published by . This book was released on 1998 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Influence of Lighting Quality on Presence and Task Performance in Virtual Environments written by Paul Michael Zimmons and published by . This book was released on 2004 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of a Body Model on Performance in a Virtual Environment Search Task written by Michael J. Singer and published by . This book was released on 1998 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Virtual Environments for Dismounted Soldier Training and Performance written by and published by . This book was released on 1998 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The U.S. Army has made a considerable investment in the use of virtual environments (VE) to train combat forces, to evaluate new systems and operational concepts, and to rehearse specific missions. While these simulations have predominately focused on training and simulation for mounted soldiers, there is also a need to train infantry and other dismounted soldiers. Although VEs have the potential to immerse dismounted soldiers directly in simulations, there are few successful examples of the use of VE to provide effective training. The effective use of VE for training requires identification of the types of tasks for which VE training is most appropriate, the characteristics of VE systems that are required to provide effective training, and the training strategies that are most appropriate for use with VE. This report presents recommendations for the use of VE for dismounted soldier training and mission rehearsal, and identifies needed future research. They are based on the results of an ARI in-house research program, related programs for which ARI scientists have participated, and the work of other VE researchers. Recommendations include types of tasks for which training in VE is and is not appropriate, interface design recommendations, and ways to reduce side- and after-effects. "-- Report documentation page.
Download or read book Virtual and Adaptive Environments written by Lawrence J. Hettinger and published by CRC Press. This book was released on 2003-06-01 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions from a collection of authors consisting of many recognizable experts in the field of virtual and adaptive environments, as well as many up and coming young researchers, this book illustrates the many ways in which psychological science contributes to and benefits from the increased development and application of these nascent systems. Discussing issues from both a user- and technology-based standpoint, the volume examins the use of human perception, cognition, and behavior. The book builds a foundation on the assumption that these systems are first and foremost human-centered technologies, in that their purpose is to complement and extend human capabilities across a wide variety of domains.
Download or read book Handbook of Virtual Environments written by Kelly S. Hale and published by CRC Press. This book was released on 2002-01-01 with total page 1273 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Handbook, with contributions from leading experts in the field, provides a comprehensive, state-of-the-art account of virtual environments (VE). It serves as an invaluable source of reference for practitioners, researchers, and students in this rapidly evolving discipline. It also provides practitioners with a reference source to guide their development efforts and addresses technology concerns, as well as the social and business implications with which those associated with the technology are likely to grapple. While each chapter has a strong theoretical foundation, practical implications are derived and illustrated via the many tables and figures presented throughout the book. The Handbook presents a systematic and extensive coverage of the primary areas of research and development within VE technology. It brings together a comprehensive set of contributed articles that address the principles required to define system requirements and design, build, evaluate, implement, and manage the effective use of VE applications. The contributors provide critical insights and principles associated with their given area of expertise to provide extensive scope and detail on VE technology. After providing an introduction to VE technology, the Handbook organizes the body of knowledge into five main parts: *System Requirements--specifies multimodal system requirements, including physiological characteristics that affect VE system design. *Design Approaches and Implementation Strategies--addresses cognitive design strategies; identifies perceptual illusions that can be leveraged in VE design; discusses navigational issues, such as becoming lost within a virtual world; and provides insights into structured approaches to content design. *Health and Safety Issues--covers direct physiological effects, signs, symptoms, neurophysiology and physiological correlates of motion sickness, perceptual and perceptual-motor adaptation, and social concerns. *Evaluation--addresses VE usability engineering and ergonomics, human performance measurement in VEs, usage protocols; and provides means of measuring and managing visual, proprioceptive, and vestibular aftereffects, as well as measuring and engendering sense of presence. *Selected Applications of Virtual Environments--provides a compendium of VE applications. The Handbook closes with a brief review of the history of VE technology. The final chapter provides information on the VE profession, providing those interested with a number of sources to further their quest for the keys to developing the ultimate virtual world.
Download or read book A Framework for Optimizing Manufacturing Task Performance Utilizing a Semi immersive Virtual Environment written by Janet H. Sanders and published by . This book was released on 2007 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extends extant research into the use of virtual reality (VR) for task completion as well as the development of a structure for virtual environment (VE) development. Provides a framework for the development of a VE that provides information for manufacturing task completion.
Download or read book Gaming the Metrics written by Mario Biagioli and published by MIT Press. This book was released on 2020-01-28 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: How the increasing reliance on metrics to evaluate scholarly publications has produced new forms of academic fraud and misconduct. The traditional academic imperative to “publish or perish” is increasingly coupled with the newer necessity of “impact or perish”—the requirement that a publication have “impact,” as measured by a variety of metrics, including citations, views, and downloads. Gaming the Metrics examines how the increasing reliance on metrics to evaluate scholarly publications has produced radically new forms of academic fraud and misconduct. The contributors show that the metrics-based “audit culture” has changed the ecology of research, fostering the gaming and manipulation of quantitative indicators, which lead to the invention of such novel forms of misconduct as citation rings and variously rigged peer reviews. The chapters, written by both scholars and those in the trenches of academic publication, provide a map of academic fraud and misconduct today. They consider such topics as the shortcomings of metrics, the gaming of impact factors, the emergence of so-called predatory journals, the “salami slicing” of scientific findings, the rigging of global university rankings, and the creation of new watchdogs and forensic practices.
Download or read book Effects of Display Type on Performance in Virtual Environments written by and published by . This book was released on 1996 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research was conducted as part of a program to determine interface requirements for enabling dismounted soldiers to train in Virtual Environments (VEs). We compared different VE display devices in terms of their effects on task performance, skill acquisition, and side effects. Forty-eight college students completed a series of visual and psychomotor tasks, a subset of the Virtual Environment Performance Assessment Battery (VEPAB), using either a Head-mounted Display (HMD), a head-tracked boom-mounted display, or a standard computer monitor. Performance on vision tasks was sensitive to differences in display devices and to individual differences. Visual acuity scores were ordered according to estimates of the resolution of the displays, but were worse than what would he predicted from the resolution estimates. In comparison to real-world performance, distance and height estimation in the VEs varied greatly across participants, especially with the HMD. Motor tasks had high reliability, demonstrated small but significant practice effects, and were correlated with participants' use of computers and video games. Unexpectedly, even the standard monitor group showed a significant increase in simulator sickness scores. The VEPAB tasks should prove useful in the future when design tradeoffs must be made in the process of developing training system prototypes.
Download or read book Exploring Human Computer Interactions in Virtual Performance and Learning in the Context of Rehabilitation written by Danielle Levac and published by Frontiers Media SA. This book was released on 2021-10-29 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Virtual Reality Training s Future written by Robert J. Seidel and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1988, the NATO panel governing human sciences (Panel 8 on Defence Applica of Human and Bio-Medical Sciences) established a Research Study Group to synthe tions size information relevant to Advanced Technologies Applied to Training Design. During its first phase, the RSG established an active exchange of information on advanced tech nologies applied to training design and stimulated much military application of these tech nologies. With the increased emphasis on training throughout the alliance, Panel 8, during its April 1991 meeting decided to continue with Phase II of this RSG focusing in the area of advanced training technologies that were emerging within the alliance. In order to ac complish its mission, the RSG held a series of workshops. Leaders in technology and training were brought together and exchanged information on the latest developments in technologies applicable to training and education. This volume represents the last in a se ries based on the NATO workshops. In Part One, it details findings from the last work shop, Virtual Reality for Training; and in Part Two, we provide a summary perspective on Virtual Reality and the other emerging technologies previously studied. These include computer-based training, expert systems, authoring systems, cost-effectiveness, and dis tance learning. It is a natural extension to proceed from learning without boundaries to virtual envi ronments. From the extended classroom to the individual or team immersion in a distrib uted, virtual, and collaborative environment is an easy conceptual step.
Download or read book Experience of Presence in Virtual Environments written by and published by . This book was released on 2003 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: Much attention has been focused on feeling a sense of presence in a virtual environment (VE). The potential importance of presence is based on an assumption that increasing the sense of presence experienced in a VE leads to an improvement in task performance. This document summarizes the results of experimental work that has been performed. Nearly 70 different measures of presence are identified, and over 100 studies that investigated various issues about the presence construct are cited. There are 83 findings regarding a relationship between presence and task performance. Roughly half of these show a significant correlation most in the expected direction. As yet, there is no evidence whether the relationships that do exist are causal in nature. Nonetheless, some conclusions are clear. Despite a decade of research, the role of presence in VEs is still unclear. No commonly agreed theory of presence much less common measures for this construct exist. Some evidence exists that particular technological, task, and personal characteristics can influence the extent of presence experienced in a VE. However, the critical question of whether manipulating presence can achieve improved task performance remains unanswered.
Download or read book Virtual and Mixed Reality written by Randall Shumaker and published by Springer Science & Business Media. This book was released on 2009-07-15 with total page 649 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 13th International Conference on Human–Computer Interaction, HCI Inter- tional 2009, was held in San Diego, California, USA, July 19–24, 2009, jointly with the Symposium on Human Interface (Japan) 2009, the 8th International Conference on Engineering Psychology and Cognitive Ergonomics, the 5th International Conference on Universal Access in Human–Computer Interaction, the Third International Conf- ence on Virtual and Mixed Reality, the Third International Conference on Internati- alization, Design and Global Development, the Third International Conference on Online Communities and Social Computing, the 5th International Conference on Augmented Cognition, the Second International Conference on Digital Human Mod- ing, and the First International Conference on Human Centered Design. A total of 4,348 individuals from academia, research institutes, industry and gove- mental agencies from 73 countries submitted contributions, and 1,397 papers that were judged to be of high scientific quality were included in the program. These papers - dress the latest research and development efforts and highlight the human aspects of the design and use of computing systems. The papers accepted for presentation thoroughly cover the entire field of human–computer interaction, addressing major advances in knowledge and effective use of computers in a variety of application areas.
