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https://www.readbyqxmd.com/read/28524798/revisiting-the-rules-for-freehand-ventriculostomy-a-virtual-reality-analysis
#1
Clemens Raabe, Jens Fichtner, Jürgen Beck, Jan Gralla, Andreas Raabe
OBJECTIVE Frontal ventriculostomy is one of the most frequent and standardized procedures in neurosurgery. However, many first and subsequent punctures miss the target, and suboptimal placement or misplacement of the catheter is common. The authors therefore reexamined the landmarks and rules to determine the entry point and trajectory with the best hit rate (HtR). METHODS The authors randomly selected CT scans from their institution's DICOM pool that had been obtained in 50 patients with normal ventricular and skull anatomy and without ventricular puncture...
May 19, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28523743/applying-lessons-from-social-psychology-to-transform-the-culture-of-error-disclosure
#2
Jason Han, Denise LaMarra, Neha Vapiwala
CONTEXT: The ability to carry out prompt and effective error disclosure has been described in the literature as an essential skill among physicians that can lead to improved patient satisfaction, staff well-being and hospital outcomes. However, few studies have addressed the social psychology principles that may influence physician behaviour. METHODS: The authors provide an overview of recent administrative measures designed to encourage physicians to disclose error, but note that deliberate practice, buttressed with lessons from social psychology, is needed to implement further productive behavioural changes...
May 18, 2017: Medical Education
https://www.readbyqxmd.com/read/28513545/a-study-on-immersion-and-presence-of-a-portable-hand-haptic-system-for-immersive-virtual-reality
#3
Mingyu Kim, Changyu Jeon, Jinmo Kim
This paper proposes a portable hand haptic system using Leap Motion as a haptic interface that can be used in various virtual reality (VR) applications. The proposed hand haptic system was designed as an Arduino-based sensor architecture to enable a variety of tactile senses at low cost, and is also equipped with a portable wristband. As a haptic system designed for tactile feedback, the proposed system first identifies the left and right hands and then sends tactile senses (vibration and heat) to each fingertip (thumb and index finger)...
May 17, 2017: Sensors
https://www.readbyqxmd.com/read/28512692/virtual-reality-enhanced-extinction-of-phobias-and-post-traumatic-stress
#4
REVIEW
Jessica L Maples-Keller, Carly Yasinski, Nicole Manjin, Barbara Olasov Rothbaum
Virtual reality (VR) refers to an advanced technological communication interface in which the user is actively participating in a computer-generated 3-dimensional virtual world that includes computer sensory input devices used to simulate real-world interactive experiences. VR has been used within psychiatric treatment for anxiety disorders, particularly specific phobias and post-traumatic stress disorder, given several advantages that VR provides for use within treatment for these disorders. Exposure therapy for anxiety disorder is grounded in fear-conditioning models, in which extinction learning involves the process through which conditioned fear responses decrease or are inhibited...
May 16, 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/28510210/brain-connectivity-during-encoding-and-retrieval-of-spatial-information-individual-differences-in-navigation-skills
#5
Greeshma Sharma, Klaus Gramann, Sushil Chandra, Vijander Singh, Alok Prakash Mittal
Emerging evidence suggests that the variations in the ability to navigate through any real or virtual environment are accompanied by distinct underlying cortical activations in multiple regions of the brain. These activations may appear due to the use of different frame of reference (FOR) for representing an environment. The present study investigated the brain dynamics in the good and bad navigators using Graph Theoretical analysis applied to low-density electroencephalography (EEG) data. Individual navigation skills were rated according to the performance in a virtual reality (VR)-based navigation task and the effect of navigator's proclivity towards a particular FOR on the navigation performance was explored...
May 16, 2017: Brain Informatics
https://www.readbyqxmd.com/read/28508784/vr-medical-gamification-for-training-and-education
#6
Stelian Nicola, Ioan Virag, Lăcrămioara Stoicu-Tivadar
The new virtual reality based medical applications is providing a better understanding of healthcare related subjects for both medical students and physicians. The work presented in this paper underlines gamification as a concept and uses VR as a new modality to study the human skeleton. The team proposes a mobile Android platform application based on Unity 5.4 editor and Google VR SDK. The results confirmed that the approach provides a more intuitive user experience during the learning process, concluding that the gamification of classical medical software provides an increased interactivity level for medical students during the study of the human skeleton...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28508725/evaluating-change-in-virtual-reality-adoption-for-brain-injury-rehabilitation-following-knowledge-translation
#7
Stephanie M N Glegg, Liisa Holsti, Sue Stanton, Steven Hanna, Diana Velikonja, Barbara Ansley, Denise Sartor, Christine Brum
PURPOSE: To evaluate the impact of knowledge translation (KT) on factors influencing virtual reality (VR) adoption and to identify support needs of therapists. HYPOTHESES: Intervention will be associated with improvements in therapists' perceived ease of use and self-efficacy, and an associated increase in intentions to use VR. METHOD: Single group mixed-methods pre-test-post-test evaluation of convenience sample of physical, occupational and rehabilitation therapists (n=37) from two brain injury rehabilitation centres...
April 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28504535/route-repetition-and-route-reversal-effects-of-age-and-encoding-method
#8
Samantha Allison, Denise Head
Previous research indicates age-related impairments in learning routes from a start location to a target destination. There is less research on age effects on the ability to reverse a learned path. The method used to learn routes may also influence performance. This study examined how encoding methods influence the ability of younger and older adults to recreate a route in a virtual reality environment in forward and reverse directions. Younger (n = 50) and older (n = 50) adults learned a route either by self-navigation through the virtual environment or through studying a map...
May 2017: Psychology and Aging
https://www.readbyqxmd.com/read/28503726/baroreflex-dysfunction-and-augmented-sympathetic-nerve-responses-during-mental-stress-in-veterans-with-posttraumatic-stress-disorder-ptsd
#9
Jeanie Park, Paul J Marvar, Peizhou Liao, Melanie L Kankam, Seth D Norrholm, Ryan M Downey, S Ashley McCullough, Ngoc-Anh Le, Barbara O Rothbaum
Posttraumatic Stress Disorder (PTSD) is associated with increased cardiovascular (CV) risk. We tested the hypothesis that PTSD patients have augmented sympathetic nervous system (SNS) and hemodynamic reactivity during mental stress, and impaired arterial baroreflex sensitivity (BRS). 14 otherwise healthy Veterans with combat-related PTSD were compared to 14 matched Controls without PTSD.  Muscle sympathetic nerve activity (MSNA), continuous blood pressure (BP), and electrocardiography were measured at baseline, and during two types of mental stress:  combat-related mental stress using virtual reality combat exposure (VRCE); and noncombat related stress using mental arithmetic (MA)...
May 14, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28503159/quantifying-the-degree-of-movement-dissimilarity-between-two-distinct-action-scenarios-an-exploratory-approach-with-procrustes-analysis
#10
Pedro Passos, Tania Campos, Ana Diniz
Game consoles allow subjects to perform movements which are visually similar to the movements performed in 'real' world scenarios. Beyond entertainment, virtual reality devices are being used in several domains: sports performance; motor rehabilitation; training of risk professions. This article presents the Procrustes method to measure the degree of dissimilarity between movements performed in 'real' and 'virtual' scenarios. For this purpose, the 501 darts game and a video darts game played on a console were used...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28503155/djinni-a-novel-technology-supported-exposure-therapy-paradigm-for-sad-combining-virtual-reality-and-augmented-reality
#11
Maher Ben-Moussa, Marius Rubo, Coralie Debracque, Wolf-Gero Lange
The present paper explores the benefits and the capabilities of various emerging state-of-the-art interactive 3D and Internet of Things technologies and investigates how these technologies can be exploited to develop a more effective technology supported exposure therapy solution for social anxiety disorder. "DJINNI" is a conceptual design of an in vivo augmented reality (AR) exposure therapy mobile support system that exploits several capturing technologies and integrates the patient's state and situation by vision-based, audio-based, and physiology-based analysis as well as by indoor/outdoor localization techniques...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28502388/the-grapefruit-an-alternative-arthroscopic-tool-skill-platform
#12
David A Molho, Stephen M Sylvia, Daniel L Schwartz, Sara L Merwin, I Martin Levy
PURPOSE: To establish the construct validity of an arthroscopic training model that teaches arthroscopic tool skills including triangulation, grasping, precision biting, implant delivery and ambidexterity and uses a whole grapefruit for its training platform. METHODS: For the grapefruit training model (GTM), an arthroscope and arthroscopic instruments were introduced through portals cut in the grapefruit skin of a whole prepared grapefruit. After institutional review board approval, participants performed a set of tasks inside the grapefruit...
May 11, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28501698/sensorimotor-experience-in-virtual-reality-enhances-sense-of-agency-associated-with-an-avatar
#13
Gaiqing Kong, Kang He, Kunlin Wei
No abstract text is available yet for this article.
May 11, 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28501116/usefulness-of-virtual-reality-in-assessment-of-medical-student-laparoscopic-skill
#14
Josh Matzke, Craig Ziegler, Kevin Martin, Stuart Crawford, Erica Sutton
BACKGROUND: This study evaluates if undergraduate medical trainees' laparoscopic skills acquisition could be assessed using a virtual reality (VR) simulator and how the resultant metrics correlate with performance of Fundamentals of Laparoscopic Surgery (FLS) tasks. Our hypothesis is that the VR simulator metrics will correlate with passing results in a competency-based curriculum (FLS). MATERIALS AND METHODS: Twenty-eight fourth-year medical students applying for surgical residency were recruited to participate in a VR training curriculum comprised of camera navigation, hand eye coordination, and FLS tasks: circle cutting (CC), ligating loop (LL), peg transfer (PT), and intracorporeal knot tying (IKT)...
May 1, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28499888/almeria-spatial-memory-recognition-test-asmrt-gender-differences-emerged-in-a-new-passive-spatial-task
#15
Laura Tascón, Luis Miguel García-Moreno, Jose Manuel Cimadevilla
Many different human spatial memory tasks were developed in the last two decades. Virtual reality based tasks make possible developing different scenarios and situations to assess spatial orientation but sometimes these tasks are complex for specific populations like children and older-adults. A new spatial task with a very limited technological requirement was developed in this study. It demanded the use of spatial memory for an accurate solution. It also proved to be sensitive to gender differences, with men outperforming women under high specific difficulty levels...
May 9, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28495661/virtual-reality-as-an-adjunct-home-therapy-in-chronic-pain-management-an-exploratory-study
#16
Bernie Garrett, Tarnia Taverner, Paul McDade
BACKGROUND: Virtual reality (VR) therapy has been successfully used as an adjunct therapy for the management of acute pain in adults and children, and evidence of potential efficacy in other health applications is growing. However, minimal research exists on the value of VR as an intervention for chronic pain. OBJECTIVE: This case series examined the value of VR to be used as an adjunctive therapy for chronic pain patients in their own homes. METHODS: An exploratory approach using a case series and personal interviews was used...
May 11, 2017: JMIR Medical Informatics
https://www.readbyqxmd.com/read/28491299/contextual-modulation-of-pain-sensitivity-utilising-virtual-environments
#17
Ashley Smith, Klancy Carlow, Tara Biddulph, Brooke Murray, Melissa Paton, Daniel S Harvie
BACKGROUND: Investigating psychological mechanisms that modulate pain, such as those that might be accessed by manipulation of context, is of great interest to researchers seeking to better understand and treat pain. The aim of this study was to better understand the interaction between pain sensitivity, and contexts with inherent emotional and social salience - by exploiting modern immersive virtual reality (VR) technology. METHODS: A within-subjects, randomised, double-blinded, repeated measures (RM) design was used...
May 2017: British Journal of Pain
https://www.readbyqxmd.com/read/28490842/the-need-for-virtual-reality-simulators-in-dental-education-a-review
#18
REVIEW
Elby Roy, Mahmoud M Bakr, Roy George
Virtual reality simulators are becoming an essential part of modern education. The benefits of Virtual reality in dentistry is constantly being assessed as a method or an adjunct to improve fine motor skills, hand-eye coordination in pre-clinical settings and overcome the monetary and intellectual challenges involved with such training. This article, while providing an overview of the virtual reality dental simulators, also looks at the link between virtual reality simulation and current pedagogical knowledge...
April 2017: Saudi Dental Journal
https://www.readbyqxmd.com/read/28486087/lack-of-transfer-of-skills-after-virtual-reality-simulator-training-with-haptic-feedback
#19
Cecilie Våpenstad, Erlend Fagertun Hofstad, Lars Eirik Bø, Esther Kuhry, Gjermund Johnsen, Ronald Mårvik, Thomas Langø, Toril Nagelhus Hernes
BACKGROUND AND OBJECTIVE: Virtual reality (VR) simulators enrich surgical training and offer training possibilities outside of the operating room (OR). In this study, we created a criterion-based training program on a VR simulator with haptic feedback and tested it by comparing the performances of a simulator group against a control group. MATERIAL AND METHODS: Medical students with no experience in laparoscopy were randomly assigned to a simulator group or a control group...
May 9, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28485671/biased-and-less-sensitive-a-gamified-approach-to-delay-discounting-in-heroin-addiction
#20
Stefan Scherbaum, Paul Haber, Kirsten Morley, Dylan Underhill, Ahmed A Moustafa
INTRODUCTION: People with addiction will continue to use drugs despite adverse long-term consequences. We hypothesized (a) that this deficit persists during substitution treatment, and (b) that this deficit might be related not only to a desire for immediate gratification, but also to a lower sensitivity for optimal decision making. We investigated how individuals with a history of heroin addiction perform (compared to healthy controls) in a virtual reality delay discounting task. This novel task adds to established measures of delay discounting an assessment of the optimality of decisions, especially in how far decisions are influenced by a general choice bias and/or a reduced sensitivity to the relative value of the two alternative rewards...
May 9, 2017: Journal of Clinical and Experimental Neuropsychology
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