نتایج جستجو برای: vr

تعداد نتایج: 8643  

Journal: :CoRR 2017
Mingzhe Chen Walid Saad Changchuan Yin

In this paper, the problem of resource management is studied for a network of wireless virtual reality (VR) users communicating over heterogeneous small cell networks (SCNs). In order to capture the VR users’ quality-of-service (QoS) in SCNs, a novel VR model, based on multi-attribute utility theory, is proposed. This model jointly accounts for VR metrics such as tracking accuracy, processing d...

2016
Sasan Mosadeghi Mark William Reid Bibiana Martinez Bradley Todd Rosen Brennan Mason Ross Spiegel

BACKGROUND Virtual reality (VR) offers immersive, realistic, three-dimensional experiences that "transport" users to novel environments. Because VR is effective for acute pain and anxiety, it may have benefits for hospitalized patients; however, there are few reports using VR in this setting. OBJECTIVE The aim was to evaluate the acceptability and feasibility of VR in a diverse cohort of hosp...

Journal: :Cyberpsychology & behavior : the impact of the Internet, multimedia and virtual reality on behavior and society 2007
Jeffrey I. Gold Katharine A. Belmont David A. Thomas

During the past decade, virtual reality (VR) has gained recognition as a means of attenuating pain during medical procedures. However, while investigators have examined the effects of virtual environments on level of distraction, subjective pain intensity, and brain activity, there have been only a handful of investigations into the neurobiological mechanisms associated with VR's efficacy. In a...

Journal: :CNS spectrums 2010
Yehuda Pollak Hanan Barhoum Shomaly Patrice L Weiss Albert A Rizzo Varda Gross-Tsur

BACKGROUND Continuous performance tasks (CPTs) embedded in a virtual reality (VR) classroom environment have been shown to be a sensitive and user-friendly assessment tool to detect cognitive deficits related to attention-deficit/hyperactivity disorder (ADHD). The aim of the current study was to compare the performance of children with ADHD on a VR-CPT while on and off treatment with methylphen...

Journal: :Journal of applied physiology 2013
Kurt J Williams N Edward Robinson Heather Defeijter-Rupp Melissa Millerick-May Alice Stack Joseph Hauptman Frederik J Derksen

Exercise-induced pulmonary hemorrhage (EIPH), which has been reported in humans and a variety of domestic animals following strenuous exercise, is most often documented in racehorses. Remodeling of pulmonary veins (VR) in equine EIPH was recently described, suggesting that it contributes to the pathogenesis of the disease. The cause of VR is unknown. We tested the hypothesis that the developmen...

2017
Federica Bressi Paola Vella Manuele Casale Antonio Moffa Lorenzo Sabatino Michele Antonio Lopez Francesco Carinci Rocco Papalia Fabrizio Salvinelli Silvia Sterzi

The objective of this article is to systematically review the evidence on the effectiveness of vestibular rehabilitation (VR) in patients with benign paroxysmal positional vertigo (BPPV). Relevant published studies about VR in BPPV were searched in PubMed, Google Scholar and Ovid using various keywords. We included trials that were available in the English language and did not apply publication...

2001
Robert Breaux L. Nguyen Dylan Schmorrow Joseph Cohn

This half-day tutorial intends to synthesize, at a level of understanding suitable for both introductory and intermediate levels of experience, the many disparate issues involved in producing an effective VR training device. Individuals completing this workshop will gain an understanding of the breadth and depth of processes involved with the successful creation of effective VR-based training. ...

Journal: :The Israel Medical Association journal : IMAJ 2006
Florella Magora Sarale Cohen Mara Shochina Ehud Dayan

BACKGROUND Virtual reality immersion has been advocated as a new effective adjunct to drugs for pain control. The attenuation of pain perception and unpleasantness has been attributed to the patient's attention being diverted from the real, external environment through immersion in a virtual environment transmitted by an interactive 3-D software computer program via a VR helmet. OBJECTIVES To...

Journal: :IEEE Computer Graphics and Applications 2001
Larry F. Hodges Page Anderson Grigore C. Burdea Hunter G. Hoffman Barbara O. Rothbaum

If we examine these VR application domains today, a clear commonality is that most are expensive, largescale applications that a few rich customers buy and use. Currently, there’s no such thing as a VR mass market. Successful commercial VR is based on selling expensive pieces of hardware and software to a few clients who have the financial, spatial, and human resources to purchase, house, and m...

Journal: :The Laryngoscope 2016
Steven Arild Wuyts Andersen Søren Foghsgaard Lars Konge Per Cayé-Thomasen Mads Sølvsten Sørensen

OBJECTIVES/HYPOTHESIS To establish the effect of self-directed virtual reality (VR) simulation training on cadaveric dissection training performance in mastoidectomy and the transferability of skills acquired in VR simulation training to the cadaveric dissection training setting. STUDY DESIGN Prospective study. METHODS Two cohorts of 20 novice otorhinolaryngology residents received either s...

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