2011 International Conference on Virtual Rehabilitation最新文献_第6页

Usability of EEG cortical currents in classification of vowel speech imagery 脑电皮层电流在元音语音图像分类中的可用性

2011 International Conference on Virtual Rehabilitation Pub Date : 2011-06-27 DOI: 10.1109/ICVR.2011.5971870

N. Yoshimura, Aruha Satsuma, C. DaSalla, T. Hanakawa, Masa-aki Sato, Y. Koike

引用次数: 11

Serious gaming to improve bimanual coordination in children with spastic cerebral palsy 重度游戏改善痉挛型脑瘫患儿的双手协调能力

2011 International Conference on Virtual Rehabilitation Pub Date : 2011-06-27 DOI: 10.1109/ICVR.2011.5971873

E. V. van Loon, C. Peper, A. Van de Rijt, A. Salverda

引用次数: 8

Perceptual and navigational strategies for obstacle circumvention in a virtual environment 虚拟环境中障碍物规避的感知和导航策略

2011 International Conference on Virtual Rehabilitation Pub Date : 2011-06-27 DOI: 10.1109/ICVR.2011.5971820

A. Darekar, Gayatri Aravind, A. Lamontagne, J. Fung

{"title":"Perceptual and navigational strategies for obstacle circumvention in a virtual environment","authors":"A. Darekar, Gayatri Aravind, A. Lamontagne, J. Fung","doi":"10.1109/ICVR.2011.5971820","DOIUrl":"https://doi.org/10.1109/ICVR.2011.5971820","url":null,"abstract":"The ability to accurately judge distance and time to collision is an important perceptual determinant in shaping obstacle circumvention strategies for functional locomotion. In addition, deficits in planning and execution, as well as biomechanical constraints imposed by age or neurological insult may lead to avoidance failure in this population. We have designed a closed system in sitting displaying self motion through a virtual environment to evaluate perceptual and navigational strategies for obstacle circumvention. In a pilot study involving six healthy young subjects and one older participant, all subjects perceived collision with a moving obstacle to have occurred almost a meter before the actual collision would have taken place. The older participant consistently under-estimated the distance of collision to a larger extent as compared to the young subjects. In the navigation task using a joystick, the older individual initiated medio-lateral deviations later than the younger individuals. The clearance distance was also observed to be smaller for the older participant thus increasing the risk of collision. Deficits in depth perception as well as motor planning may contribute to increased errors. However, rehabilitation interventions that use VR can be utilized to improve perceptual and planning abilities, such that efficacious avoidance strategies can be facilitated. Moreover, further testing of locomotion in environments may help devise novel interventions for promoting ambulation.","PeriodicalId":345535,"journal":{"name":"2011 International Conference on Virtual Rehabilitation","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124904663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Improving dexterity in children with cerebral palsy 提高脑瘫患儿的灵巧性

2011 International Conference on Virtual Rehabilitation Pub Date : 2011-06-27 DOI: 10.1109/ICVR.2011.5971872

H. V. van Hedel, Karin Wick, A. Meyer-Heim, K. Eng

引用次数: 7

ImAble system for upper limb stroke rehabilitation ImAble上肢中风康复系统

2011 International Conference on Virtual Rehabilitation Pub Date : 2011-06-27 DOI: 10.1109/ICVR.2011.5971835

K. Jordan, M. Sampson, J. Hijmans, Marcus King, L. Hale

引用次数: 16

The effects of manipulation of visual feedback in virtual reality on cortical activity: A pilot study 虚拟现实中视觉反馈操作对大脑皮层活动的影响:一项初步研究

2011 International Conference on Virtual Rehabilitation Pub Date : 2011-06-27 DOI: 10.1109/ICVR.2011.5971815

Johannes Brand, O. Geisseler, L. Holper, M. Hepp-Reymond, M. Morari, D. Kiper, K. Eng

{"title":"The effects of manipulation of visual feedback in virtual reality on cortical activity: A pilot study","authors":"Johannes Brand, O. Geisseler, L. Holper, M. Hepp-Reymond, M. Morari, D. Kiper, K. Eng","doi":"10.1109/ICVR.2011.5971815","DOIUrl":"https://doi.org/10.1109/ICVR.2011.5971815","url":null,"abstract":"It is known that systematic visual distortions using virtual reality technologies, prisms or mirrors, may have therapeutic effects for patients suffering from stroke or body image identity disorders. However, there are few studies which directly investigate neural activity changes during visual feedback manipulation. In the present study we created an experimental setup for investigating the effects of systematic virtual reality-mediated visual feedback manipulation of finger movements on cortical activity. We performed tests with two healthy female subjects who performed a line-tracking task under four conditions manipulating visual feedback of their own hand. To investigate hemodynamic responses in motor areas during the line tracking task we used functional near-infrared spectroscopy (fNIRS). We predicted that viewing larger or smaller virtual movements of fingers, compared to the real movements, would affect activity in motor areas and thus the hemodynamic response. Our preliminary results showed changes in the hemodynamic responses between stimulation period and baseline. There were indications of possible differences between conditions, and also of adaptation effects within conditions. However these effects were not significant in our preliminary data and we therefore need to collect additional data to draw further conclusions.","PeriodicalId":345535,"journal":{"name":"2011 International Conference on Virtual Rehabilitation","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129841570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

10 years experience in the application of the Reinforced Feedback in Virtual Environment (RFVE) for neurorehabilitation: Preliminary results from a retrospective analysis in stroke patients 虚拟环境中强化反馈(RFVE)在神经康复中的应用10年经验:来自脑卒中患者回顾性分析的初步结果

2011 International Conference on Virtual Rehabilitation Pub Date : 2011-06-27 DOI: 10.1109/ICVR.2011.5971863

Turolla Andrea, Agostini Michela, Zucconi Carla, Kiper Pawel, V. Andrea, Tonin Paolo, M. Dam, Piron Lamberto, Ventura Laura, Dalmartello Michela

引用次数: 1

Mirror feedback in virtual reality elicits ipsilesional motor cortex activation in chronic stroke patients 虚拟现实中的镜像反馈诱发慢性脑卒中患者同侧运动皮层激活

2011 International Conference on Virtual Rehabilitation Pub Date : 2011-06-27 DOI: 10.1109/ICVR.2011.5971862

E. Tunik, S. Saleh, Hamid F. Bagce, A. Merians, S. Adamovich

{"title":"Mirror feedback in virtual reality elicits ipsilesional motor cortex activation in chronic stroke patients","authors":"E. Tunik, S. Saleh, Hamid F. Bagce, A. Merians, S. Adamovich","doi":"10.1109/ICVR.2011.5971862","DOIUrl":"https://doi.org/10.1109/ICVR.2011.5971862","url":null,"abstract":"We studied if mirror-visual feedback, presented in virtual reality (VR), could bolster the activity of the lesioned motor cortex in chronic stroke patients. 5 stroke subjects performed a simple finger movement using the non-paretic hand. During fMRI scanning, an MRI-compatible VR-motion capture interface was used to record their hand movement and actuate in real-time virtual hand models, which were presented in 1st person perspective as virtual feedback. Virtual hands' motion was manipulated by either actuating the hand model corresponding to the moving (unaffected) hand (veridical feedback) or the opposite (mirrored) virtual hand. Two additional types of feedback, in which the virtual hands were replaced with moving non-anthropomorphic shapes, served as control conditions. Subjects maintained consistent movement kinematics across conditions. In each of the 5 stroke subjects, mirrored feedback led to significant activation of the ipsilesional sensorimotor cortex, despite the affected hand remaining motionless during the task. An additional control experiment and conjunction analysis confirmed that the part of the motor cortex that was activated by mirrored feedback overlapped with the area of motor cortex involved in movement production of the affected hand. Our data suggest that mirrored visual feedback may be a feasible modality that can be used to recruit select brain regions in stroke patients as a means of facilitating neural reorganization and recovery.","PeriodicalId":345535,"journal":{"name":"2011 International Conference on Virtual Rehabilitation","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127915256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Optic flow in a virtual environment can impact on locomotor steering post stroke 虚拟环境中的光流会影响运动机器人转向后行程

2011 International Conference on Virtual Rehabilitation Pub Date : 2011-06-27 DOI: 10.1109/ICVR.2011.5971812

J. Berard, J. Fung, A. Lamontagne

引用次数: 1

Development of a virtual reality leg-cycling training system for stroke patients 脑卒中患者虚拟现实腿部循环训练系统的开发

2011 International Conference on Virtual Rehabilitation Pub Date : 2011-06-27 DOI: 10.1109/ICVR.2011.5971833

H. Lo, Y. Hsueh, C. Yeh, Sin-Lin Chen

引用次数: 2