scholarly journals Mitigating Psychological Trauma on Adult Burn Patients Based on Virtual Reality Technology of Smart Medical Treatment

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Hongli Ren ◽  
Yunpeng Du ◽  
Xiaofen Feng ◽  
Jiamin Pu ◽  
Xiaoyan Xiang
Keyword(s):  
Virtual Reality ◽  
Data Processing ◽  
Medical Treatment ◽  
Real Time ◽  
Self Regulation ◽  
Psychological Trauma ◽  
Biofeedback Training ◽  
Burn Patients ◽  
Eeg Data ◽  
Processing Module

Virtual reality (VR) is one of the hot spots in the computer network world in recent years, which has attracted more and more people’s attention. This study mainly explores the effect of mitigating the psychological trauma of adult burn patients based on the VR technology of smart medical treatment. First, the EEG data are sent to the data processing module through a wireless protocol; then, the data processing module denoises the EEG data and performs feature extraction and feedback parameter calculation; after that, these parameters will be sent to the VR interaction engine; based on this, these parameters change the VR scene to capture and reflect the physiological activities of the patient’s brain in real time; finally, the patient uses the VR scene content presented by the real-time feedback of the captured EEG signal as a guide to making self-adjustment in time, and the electrical signal of captured brain at this time is again transmitted to the next work cycle and continues to feed back and present new VR interactive scenes to guide and intervene in the patient’s self-regulation behavior. The VR feedback training module is responsible for receiving the characteristic data calculated from the EEG acquisition and processing module and converts it into parameter variables that control the VR intervention system. The system user adjusts the state according to the feedback information displayed in the VR scene and generates new EEG signals to promote the realization of self-adjustment. The biofeedback training based on EEG feeds back the intuitive EEG state to the patient, prompting them to learn how to realize self-regulation and achieve the purpose of adjusting the level of mental health. The degree of itching and pain in the VR treatment group was alleviated, and compared with the normal training treatment results, it was statistically significant ( P > 0.05 ). This study has a positive effect on the psychological intervention of patients with facial injuries.

scholarly journals From 2D to VR Film: A Research on the Load of Different Cutting Rates Based on EEG Data Processing

Information ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 130
Author(s):  
Feng Tian ◽  
Yan Zhang ◽  
Yingjie Li
Keyword(s):  
Virtual Reality ◽  
Data Processing ◽  
Experimental Research ◽  
Objective Data ◽  
Theta Wave ◽  
Theoretical Support ◽  
Eeg Data ◽  
Cutting Rate ◽  
Alpha Beta ◽  
Viewing Experience

Focusing on virtual reality (VR) and film cutting, this study compared and evaluated the effect of visual mode (2D, VR) and cutting rate (fast, medium, slow) on a load, to make an attempt for VR research to enter the cognitive field. This study uses a 2 × 3 experimental research design. Forty participants were divided into one of two groups randomly and watched films with three cutting rates. The subjective and objective data were collected during the experiment. The objective results confirm that VR films bring more powerful alpha, beta, theta wave activities, and bring a greater load. The subjective results confirm that the fast cutting rate brings a greater load. These results provide a theoretical support for further exploring the evaluation methods and standards of VR films and improving the viewing experience in the future.

Researching Metrology System on the Basis of Laser Tracker

2013 ◽  
Vol 423-426 ◽  
pp. 2409-2413
Author(s):  
Zhong Yi Mei ◽  
Zhen Wei Luo
Keyword(s):  
Data Processing ◽  
Real Time ◽  
Assembly System ◽  
Laser Tracker ◽  
Motion Simulation ◽  
Laser Tracking ◽  
Flexible Assembly ◽  
Time Motion ◽  
Processing Module ◽  
Metrology System

A digital flexible assembly system is developed which is used to assemble one fuselage large component of a large aircraft. The laser tracking metrology system is the important part of the flexible assembly system. The metrology system is composed of three modules: laser tracking measurement module, data processing module, and real-time motion simulation module. The laser tracking measurement module is mainly completing the measurement functions of the laser tracker. Data processing module is the core module of the metrology system, and is responsible for all data computation and transmission in assembling and positioning the aircraft component. The real-time motion simulation module provides the three-dimensional scene simulation of the assembly to the users and gives the users a more intuitive understanding of the assembly process. This paper introduces the system structure and working principle of the developed metrology system which based on the laser tracker. The application of the metrology system and the flexible assembly system can greatly improve the assembly accuracy.

scholarly journals Virtual reality as an object and a tool of cognition: applied aspects

2021 ◽  
pp. 161-166
Author(s):  
T.Yu. Sokolova ◽  
◽  
G.I. Fazylzianova ◽  
E.E. Efgrafova ◽  
E.V. Astapovich ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Real Time ◽  
Virtual World ◽  
Professional Training ◽  
Psychological Trauma ◽  
Educational Process ◽  
Educational Technologies ◽  
Ability To Act ◽  
Touch Devices ◽  
Artificial World

Projects developed with the use of virtual reality technologies provide a user’s immersion in an artificial world with the ability to act in it using special touch devices in real time. The design and architecture of virtual reality are new and in-demand professional competencies today. The work of a virtual architect is responsible: the virtual world can become for the user both an area where discoveries are made, and a space of psychological trauma. Therefore, the professional training of creators of digital worlds involves the active use of new educational technologies in the educational process, among which virtual reality technologies occupy a special place.

scholarly journals The effect of APOE genotype and streamline density volume, on hippocampal CA1 down-regulation: a real-time fMRI virtual reality neurofeedback study

2019 ◽  
Author(s):  
Stavros Skouras ◽  
Jordi Torner ◽  
Patrik Anderson ◽  
Yury Koush ◽  
Carles Falcon ◽  
...  
Keyword(s):  
At Risk ◽  
Virtual Reality ◽  
Real Time ◽  
Memory Performance ◽  
Self Regulation ◽  
Apoe Genotype ◽  
List Type ◽  
Down Regulation ◽  
Apoe Ε4 ◽  
Hippocampal Ca1

AbstractHippocampal hyperactivity is a precursor of Alzheimer’s disease and more prominent in APOE-ε4 carriers. It is therefore important to investigate the processes of hippocampal self-regulation, to monitor therapeutic efficacy of preclinical interventions. We have developed a closed-loop, virtual reality neurofeedback paradigm for real-time fMRI, that provides a standardized method for quantifying processes of hippocampal self-regulation. We acquired multi-modal neuroimaging data from a sample of 53 cognitively unimpaired subjects at risk for AD and applied standard methods of structural and functional connectomics. The analyses reveal significant negative associations between hippocampal CA1 down-regulation performance and APOE-ε4 alleles, as well as hippocampal streamline density volume. Better memory performance was associated with increased, bilateral hippocampal functional connectivity during the neurofeedback task. These are the first results to link neurofeedback performance to a genetic risk factor and structural connectivity. Further, these are the first evidence that functional cohesion between the hippocampi can reflect subtle differences in memory function, in cognitively unimpaired individuals at risk for AD. We provide a novel method to assess hippocampal function in preclinical AD, and propose it can be used to derive proxies for neural reserve.HighlightsAPOE-ε4 alleles impact hippocampal down-regulation neurofeedback performance.Hippocampal streamline density volume is associated with decreased hippocampal down-regulation performance.Bilaterally cohesive hippocampal activity is associated with better memory performance.We provide a novel paradigm to investigate self-regulation and brain function.

scholarly journals Telemanipulation of an Articulated Robotic Arm using a Commercial Virtual Reality Controller

2020 ◽  
Vol 6 (3) ◽  
pp. 127-130
Author(s):  
Max B. Schäfer ◽  
Kent W. Stewart ◽  
Nico Lösch ◽  
Peter P. Pott
Keyword(s):  
Virtual Reality ◽  
Real Time ◽  
Robotic Arm ◽  
Input Device ◽  
Robot Assisted ◽  
Promising Alternative ◽  
Input Devices ◽  
Current Input ◽  
Current Systems ◽  
Robot Assisted Surgery

AbstractAccess to systems for robot-assisted surgery is limited due to high costs. To enable widespread use, numerous issues have to be addressed to improve and/or simplify their components. Current systems commonly use universal linkage-based input devices, and only a few applicationoriented and specialized designs are used. A versatile virtual reality controller is proposed as an alternative input device for the control of a seven degree of freedom articulated robotic arm. The real-time capabilities of the setup, replicating a system for robot-assisted teleoperated surgery, are investigated to assess suitability. Image-based assessment showed a considerable system latency of 81.7 ± 27.7 ms. However, due to its versatility, the virtual reality controller is a promising alternative to current input devices for research around medical telemanipulation systems.

scholarly journals Virtual Reality Technology and Remote Digital Application for Tele-Simulation and Global Medical Education: An Innovative Hybrid System for Clinical Training

2021 ◽  
pp. 104687812110082
Author(s):  
Omamah Almousa ◽  
Ruby Zhang ◽  
Meghan Dimma ◽  
Jieming Yao ◽  
Arden Allen ◽  
...  
Keyword(s):  
Medical Education ◽  
Virtual Reality ◽  
Real Time ◽  
Global Education ◽  
Clinical Training ◽  
Simulation Training ◽  
Virtual Space ◽  
Control Panel ◽  
Clinical Simulation ◽  
Clinical Scenarios

Objective. Although simulation-based medical education is fundamental for acquisition and maintenance of knowledge and skills; simulators are often located in urban centers and they are not easily accessible due to cost, time, and geographic constraints. Our objective is to develop a proof-of-concept innovative prototype using virtual reality (VR) technology for clinical tele simulation training to facilitate access and global academic collaborations. Methodology. Our project is a VR-based system using Oculus Quest as a standalone, portable, and wireless head-mounted device, along with a digital platform to deliver immersive clinical simulation sessions. Instructor’s control panel (ICP) application is designed to create VR-clinical scenarios remotely, live-stream sessions, communicate with learners and control VR-clinical training in real-time. Results. The Virtual Clinical Simulation (VCS) system offers realistic clinical training in virtual space that mimics hospital environments. Those VR clinical scenarios are customizable to suit the need, with high-fidelity lifelike characters designed to deliver interactive and immersive learning experience. The real-time connection and live-stream between ICP and VR-training system enables interactive academic learning and facilitates access to tele simulation training. Conclusions. VCS system provides innovative solutions to major challenges associated with conventional simulation training such as access, cost, personnel, and curriculum. VCS facilitates the delivery of academic and interactive clinical training that is similar to real-life settings. Tele-clinical simulation systems like VCS facilitate necessary academic-community partnerships, as well as global education network between resource-rich and low-income countries.

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