2006 International Workshop on Virtual Rehabilitation最新文献

{"title":"Initial Therapeutic Results of Visual Feedback Manipulation in Robotic Rehabilitation","authors":"B. Brewer, R. Klatzky, Y. Matsuoka","doi":"10.1109/IWVR.2006.1707546","DOIUrl":"https://doi.org/10.1109/IWVR.2006.1707546","url":null,"abstract":"Visual feedback is provided to patients in most robotic rehabilitation applications, and this feedback has the potential to influence patient performance in therapy. We have explored the use of visual feedback manipulation (by distortion or progression) in rehabilitation with 3 subjects, each of whom participated in a 6-week rehabilitation protocol. Patients' performances during the initial assessment at each therapeutic session were found to be an underestimate of their actual abilities and were a poor metric for setting the difficulty level of therapeutic exercise. All three patients were willing and able to improve their performance by following distortion or progression, and all patients showed functional improvements after participation in the study. Visual feedback manipulation could provide a way to go beyond patients' self-assessment performances, improving the outcome of robotic rehabilitation","PeriodicalId":140793,"journal":{"name":"2006 International Workshop on Virtual Rehabilitation","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131405387","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":"A View on VR-Enhanced Rehabilitation Robotics","authors":"R. Riener, M. Wellner, T. Nef, J. Zitzewitz, A. Duschau-Wicke, G. Colombo, L. Lünenburger","doi":"10.1109/IWVR.2006.1707544","DOIUrl":"https://doi.org/10.1109/IWVR.2006.1707544","url":null,"abstract":"Robot-assisted gait training can increase the duration and number of training sessions, whilst reducing the number of therapists required per patient. However, training can often be boring for the patient so that the training intensity is low. Furthermore, training is usually limited to a single modality, providing only force feedback to guide the movement. Virtual reality (VR) with multimodal displays has the chance to feedback performance information to the patient, augment the training with additional audiovisual features, thus, making the therapy more exciting and increasing patient motivation. In this paper we present results from the literature and preliminary results from our research about novel VR strategies applied to gait and arm therapy. Broad clinical testing is still required to determine its efficacy or effectiveness on patient motivation","PeriodicalId":140793,"journal":{"name":"2006 International Workshop on Virtual Rehabilitation","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133699021","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":"Musculoskeletal Simulation Based Optimization of Rehabilitation Program","authors":"Leng-Feng Lee, V. Krovi","doi":"10.1109/IWVR.2006.1707524","DOIUrl":"https://doi.org/10.1109/IWVR.2006.1707524","url":null,"abstract":"Rehabilitation is a complex multifaceted process with complexity and variability that depends not only on human patients and/or specialized equipment but also on the nature of their functional interaction. Rapid and effective customization of the functional interactions between the patient and the rehabilitation device thus becomes critical for any rehabilitation program. Two principal dimensions govern the effectiveness of such functional interactions: geometric placement of user-device (ergonomics) and exercise selection and performance (regimen). In this paper, we discuss aspects of creation of a virtual design environment, leveraging tools from musculoskeletal analysis, optimization, and simulation-based design, which will permit a therapist to rapidly evaluate and systematically customize various candidate rehabilitation programs. Specifically, this framework: (i) permits study of parametric performance variability due to ergonomic or regimen variability; and (ii) facilitates use of all design tools such as optimization to determine the best program. We illustrate various aspects of this customization using an illustrative case-study of a motor-rehabilitation haptic virtual driving environment","PeriodicalId":140793,"journal":{"name":"2006 International Workshop on Virtual Rehabilitation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130247206","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":"Design of an fMRI Compatible System to Explore Neural Mechanisms Subserving VR Therapies","authors":"J.A. Lewis, K. August, A. Merians, B. Biswal, S. Adamovich","doi":"10.1109/IWVR.2006.1707527","DOIUrl":"https://doi.org/10.1109/IWVR.2006.1707527","url":null,"abstract":"Since most functional activities of daily living, involving the upper-extremity, are bilateral in nature, a rehabilitation system with functionally integrated activities could result in stronger training effects on the sensorimotor abilities of patients. The virtual reality piano trainer, described here, incorporates bilateral and multi-joint movements to exercise the hands, wrists and forearms. In an effort to better describe the underlying mechanisms that may be driving improvement from virtual reality therapies, and to more effectively develop such activities, a pilot fMRI study exploring simple VR tasks and preliminary data are introduced in this paper","PeriodicalId":140793,"journal":{"name":"2006 International Workshop on Virtual Rehabilitation","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130823242","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":"A multilevel model for movement rehabilitation in Traumatic Brain Injury (TBI) using Virtual Environments","authors":"Peter H. Wilson, Patrick R. Thomas, David Shum, J. Duckworth, M. Guglielmetti, Rudolf Heiko, Nick Mumford, R. Eldridge","doi":"10.1109/IWVR.2006.1707526","DOIUrl":"https://doi.org/10.1109/IWVR.2006.1707526","url":null,"abstract":"This paper presents a conceptual model for movement rehabilitation of traumatic brain injury (TBI) using virtual environments. This hybrid model integrates principles from ecological systems theory with recent advances in cognitive neuroscience, and supports a multilevel approach to both assessment and treatment. Performance outcomes at any stage of recovery are determined by the interplay of task, individual, and environmental/contextual factors. We argue that any system of rehabilitation should provide enough flexibility for task and context factors to be varied systematically, based on the current neuromotor and biomechanical capabilities of the performer or patient. Thus, in order to understand how treatment modalities are to be designed and implemented, there is a need to understand the function of brain systems that support learning at a given stage of recovery, and the inherent plasticity of the system. We know that virtual reality (VR) systems allow training environments to be presented in a highly automated, reliable, and scalable way. Presentation of these virtual environments (VEs) should permit movement analysis at three fundamental levels of behaviour: (i) neurocognitive bases of performance (we focus in particular on the development and use of internal models for action which support adaptive, on-line control); (ii) movement forms and patterns that describe the patients' movement signature at a given stage of recovery (i.e, kinetic and kinematic markers of movement proficiency), (iii) functional outcomes of the movement. Each level of analysis can also map quite seamlessly to different modes of treatment. At the neurocognitive level, for example, semi-immersive VEs can help retrain internal modeling processes by reinforcing the patients' sense of multimodal space (via augmented feedback), their position within it, and the ability to predict and control actions flexibly (via movement simulation and imagery training). More specifically, we derive four key therapeutic environment concepts (or Elements) presented using VR technologies: Embodiment (simulation and imagery), Spatial Sense (augmenting position sense), Procedural (automaticity and dual-task control), and Participatory (self-initiated action). The use of tangible media/objects, force transduction, and vision-based tracking systems for the augmentation of gestures and physical presence will be discussed in this context","PeriodicalId":140793,"journal":{"name":"2006 International Workshop on Virtual Rehabilitation","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133285699","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":"Computer-enhanced route and survey spatial knowledge assessment in clinical neuropsychology","authors":"F. Morganti, A. Gaggioli, L. Strambi, M. Rusconi, G. Riva","doi":"10.1109/IWVR.2006.1707537","DOIUrl":"https://doi.org/10.1109/IWVR.2006.1707537","url":null,"abstract":"In the field of clinical neuropsychology, topographical disorientation represents one of the main consequences of brain injury. Different methodological approaches and different tools have been used in the assessment of brain-injured patient's navigational abilities. These procedures include auto-evaluation questionnaires, evaluation of general cognitive level, mental rotation tasks or specifically suited visual-spatial tasks. All these methodologies have shown a moderate correlation between the results of these kinds of evaluation and the navigational ability impairment observed in everyday contexts. Meanwhile, the evaluation of patient's spatial orientation out of laboratory setting appears to be an unprofitable opportunity for clinicians. Thus the problem in designing an effective assessment tool is still open. A promising approach could be to integrate classical evaluation tools with computer-based interactive ones, such as virtual reality. According to this framework, we propose a combination of classical and virtual reality-based assessment, in which perceptive, memory and attentional functions (that combined each other are considered the hub for spatial orientation ability) will be evaluated with standardized neuropsychological tests and a more situated computer-based tools will allow the assessment of spatial orientation during the interaction with complex environments. Strictly linked with \"paper and pencil\" spatial disorientation neuropsychological evaluation, we propose two 3D virtual reality tools based on Wisc-R Maze subtest and road map test, customized to match interactive evaluation requirements. The first will provide the possibility to evaluate human ability of finding the best route to achieve a target goal while immersed in an empty environment. The second can be used to evaluate the ability in creating relationships between various points of the environment and in inferring, through the reasoning process, high-level spatial organization knowledge. By providing the possibility to track user's spatial behaviours, a virtual reality-based evaluation allows an effective and objective record of all the experimental variables. It also avoids the intervention of the experimenter, which may interfere with the actions of the agent-explorer. The main hypothesis of our research is that the integration of virtual reality-based tools with traditional evaluation methods will improve the evaluation of topographical disorientation in brain-injured patients","PeriodicalId":140793,"journal":{"name":"2006 International Workshop on Virtual Rehabilitation","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114936662","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":"Evaluation of RU-Netra - Tactile Feedback Navigation System For The Visually Impaired","authors":"Chirayu Shah, M. Bouzit, Meriam Youssef, Leslie Vasquez","doi":"10.1109/IWVR.2006.1707530","DOIUrl":"https://doi.org/10.1109/IWVR.2006.1707530","url":null,"abstract":"An evaluation of novel tactile navigation system for the blind is described in this paper. The handle processes ultrasonic sensor signals and conveys information to the user through variable and synchronized vibrations, which will enhance the sense of orientation and distance for the user. Various tactile perception patterns are used to convey information to the user using sensitivity of the hand. These schemes give feedback to the user using various vibrating patterns which are dependent on three parameters namely intensity of vibration, location of the vibro-tactile actuator and the pulse duration of sensing signal. We are showing different navigation scenario results of the device on 15 sighted users of different age group, genders and hand sizes by making them blindfolded. The prototype has an ergonomic design, is lightweight, compact, and adjustable to different hand sizes","PeriodicalId":140793,"journal":{"name":"2006 International Workshop on Virtual Rehabilitation","volume":"549 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123428766","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":"Greater Transfer to Walking of Lower Extremity Training with Robotics and Virtual Reality than Robotics Training Alone: Preliminary Findings","authors":"A. Mirelman, J. Deutsch, P. Bonato","doi":"10.1109/IWVR.2006.1707545","DOIUrl":"https://doi.org/10.1109/IWVR.2006.1707545","url":null,"abstract":"Virtual reality systems have been used to deliver goal directed repetitive training to promote rehabilitation of individuals post-stroke. Lower extremity training of individuals post-stroke who used a robot coupled with virtual environment has been shown to transfer to improved overground locomotion. To isolate the active components of training in this study we compared the outcomes of training with the robot-virtual reality (VR) system to the robot alone. Four individuals post-stroke participated in a four-week training protocol. One group trained with the robot-VR system and the other group with the robot alone. The improvement in walking speed and endurance for the robot-VR group was greater than the robot group alone. Adherence as well as the number of exercises performed in each session was comparable for the two groups. The duration of training sessions was comparable at the beginning of the study. However, subjects in the robot group reported higher fatigue and produced 16% fewer minutes of training towards the end of the study. These findings support the use of virtual environments coupled with a robot for transfer of training from the virtual to the real world environment","PeriodicalId":140793,"journal":{"name":"2006 International Workshop on Virtual Rehabilitation","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126436503","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":"Using Virtual Environments for Stroke Rehabilitation","authors":"Lídia S. Cardoso, R. M. D. Costa, Alberto Piovesana, Michele Costa, Livia Penna, Ana Cristina, Crispin, Juliana Carvalho, H. Ferreira, Manuel Leite Lopes, Gustavo Brandão, Raphael Mouta","doi":"10.1109/IWVR.2006.1707517","DOIUrl":"https://doi.org/10.1109/IWVR.2006.1707517","url":null,"abstract":"The aim of this article is to present partial results of a pilot study that explores computer technology to enhance some cognitive and executive functions of patients who had a stroke. They each experienced activities that stimulate cognitive functions in virtual environments, which present some activities related to day-to-day situations","PeriodicalId":140793,"journal":{"name":"2006 International Workshop on Virtual Rehabilitation","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134448924","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":"Testing and Usability Evaluation of the MRAGES Force Feedback Glove","authors":"S.H. Winter, M. Bouzit","doi":"10.1109/IWVR.2006.1707532","DOIUrl":"https://doi.org/10.1109/IWVR.2006.1707532","url":null,"abstract":"Haptic force feedback can be summarized as a system that provides a sense of feeling and the application of forces by a computer to a user. This type of feedback system was developed as a glove or master format in order to provide forces at the fingertips. As a core to the device, passive actuators were developed using magnetorheological fluid (MRF) and a novel exoskeleton mechanical power transmission system was designed utilizing rapid prototype parts. The fluid is a smart material that has the property of changing its viscosity when exposed to a magnetic field. By varying the intensity of electromagnets embedded within the fluid based actuators, the resistive forces of the actuators can be dynamically set. The entire system is lightweight, low power and easily portable. A completed system was tested to evaluate the usability of the device","PeriodicalId":140793,"journal":{"name":"2006 International Workshop on Virtual Rehabilitation","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130005299","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}