A. Koenig, K. Brutsch, L. Zimmerli, M. Guidali, A. Duschau-Wicke, M. Wellner, A. Meyer-Heim, L. Lunenburger, S. Koeneke, L. Jancke, R. Riener
{"title":"Virtual environments increase participation of children with cerebral palsy in robot-aided treadmill training","authors":"A. Koenig, K. Brutsch, L. Zimmerli, M. Guidali, A. Duschau-Wicke, M. Wellner, A. Meyer-Heim, L. Lunenburger, S. Koeneke, L. Jancke, R. Riener","doi":"10.1109/ICVR.2008.4625147","DOIUrl":"https://doi.org/10.1109/ICVR.2008.4625147","url":null,"abstract":"Virtual environments can make repetitive motor rehabilitation exercises more motivating and thereby more effective. We hypothesize that participation-dependent multimodal stimuli increase the patientpsilas activity as expressed through force exertion during robot-aided treadmill training. In a single case study with one patient (12 years old), we were able to show that active participation increased in the presence of visual stimuli and decreased in their absence. For a feasibility study, we included four children with cerebral palsy in order to assess the user acceptance of four different virtual environment scenarios including a soccer scenario, a traffic situation, obstacle crossing and wading through deep snow. Using questionnaires, we found that only the soccer scenario provided sufficient interactive elements to engage the patients.","PeriodicalId":260355,"journal":{"name":"2008 Virtual Rehabilitation","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126807302","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}
O. Elion, Y. Bahat, I. Sela, I. Siev-ner, P. Weiss, A. Karni
{"title":"Postural adjustments as an acquired motor skill: Delayed gains and robust retention after a single training session within a virtual environment","authors":"O. Elion, Y. Bahat, I. Sela, I. Siev-ner, P. Weiss, A. Karni","doi":"10.1109/ICVR.2008.4625121","DOIUrl":"https://doi.org/10.1109/ICVR.2008.4625121","url":null,"abstract":"Postural adjustments are essential for voluntary movement as they provide the foundation for motor performance. Yet the time-course of learning postural adjustments, the specificity of learning and the ability to effectively retain this knowledge are not well known. The objective of this research was to study the characteristics of the acquisition of postural control skills in healthy adults within a virtual environment (VE). Seven healthy young adults, aged 20-40 years (mean plusmn SD = 28.6 plusmn 2.7), performed a single training session in a VE in which maintenance of balance on a moving platform according to a given road scenario, as well as a secondary visual target reaching task were required, in repeated runs. Balance performance was assessed during training and additional assessments were performed at 24 hours and 4 weeks post-training. The results showed that the Center of Pressure (CoP) displacement decreased during the training session (P=0.001) and continued to decrease 24 hours post-training (P=0.01) (i.e., a delayed gain in skill). The gains were robustly maintained and increased by 4 (p=0.008) and 12 (p=0.005) weeks post training. New learning occurred when the secondary task was made more demanding but was not required, and when the path traveled was experienced without the secondary task or with eyes closed. Thus, a single balance maintenance training session in a VE setting was sufficient to trigger a learning process of balance control resulting in immediate gains, delayed gains and robust retention. The time-course (including the expression of delayed gains, i.e., a consolidation phase) and magnitude of this learning process appear to be similar to that which takes place during volitional manual task learning.","PeriodicalId":260355,"journal":{"name":"2008 Virtual Rehabilitation","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122283222","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}
{"title":"Workshop 2: VR driving: The road to success is still under construction","authors":"M. Schultheis","doi":"10.1109/ICVR.2008.4625110","DOIUrl":"https://doi.org/10.1109/ICVR.2008.4625110","url":null,"abstract":"The application of VR for driver rehabilitation can offer numerous unique and innovative advantages to the assessment and rehabilitation of driving skills for persons with neurological compromise. However, in order to ensure the successful integration and acceptance of this new tool, several considerations must be reviewed. This presentation will discuss findings from a series of studies that has examined the VR-Driver System (VRDS) among individuals with and without neurological compromise. The VRDS is an interactive driving experience in a “virtual” neighborhood environment that provides driving performance measures that clinically are not currently available. Findings regarding usability issues, such as user-feedback and the incidence of negative side effects (i.e., simulation sickness) and the overall validity of the use of this technology will be presented.","PeriodicalId":260355,"journal":{"name":"2008 Virtual Rehabilitation","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133163612","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}
{"title":"Tutorial 2: Use of haptic feedback devices and virtual environments for rehabilitation","authors":"H. Sugarman, B. Lange","doi":"10.1109/ICVR.2008.4625108","DOIUrl":"https://doi.org/10.1109/ICVR.2008.4625108","url":null,"abstract":"Interaction with computers and virtual environments is almost totally based on visual displays, along with auditory feedback. Somesthetic feedback, a necessary feature in all other skilled activity, is usually absent. Haptic interfaces attempt to solve this problem by coupling the human sense of touch with a computer-generated world. Haptics is the science of applying tactile sensation and kinesthesis to interaction with computer applications. By using special input/output devices (joysticks, data gloves, or other devices), users can receive feedback from computer applications in the form of sensations felt in the hand or other parts of the body. These sensations include forces, vibrations and/or motions. The aim of this tutorial is to provide participants with an overview of the technical aspects of haptic feedback and provide information about different haptic feedback devices and applications of these devices using virtual reality and computer simulations for motor rehabilitation, learning and teleoperation. The tutorial will include opportunities for hands-on practice with haptic devices and different environments. The haptic devices available for hands-on practice will include the Novint Falcon, and the SensAble OMNI devices.","PeriodicalId":260355,"journal":{"name":"2008 Virtual Rehabilitation","volume":"86 12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126284683","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}
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