tailieunhanh - báo cáo hóa học: "User-centered virtual environment design for virtual rehabilitation"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: User-centered virtual environment design for virtual rehabilitation | Fidopiastis et al. Journal of NeuroEngineering and Rehabilitation 2010 7 11 http content 7 1 11 l dl JOURNAL OF NEUROENGINEERING NCR AND REHABILITATION RESEARCH Open Access User-centered virtual environment design for virtual rehabilitation Cali M Fidopiastis1 Albert A Rizzo2 Jannick P Rolland3 Abstract Background As physical and cognitive rehabilitation protocols utilizing virtual environments transition from single applications to comprehensive rehabilitation programs there is a need for a new design cycle methodology. Current human-computer interaction designs focus on usability without benchmarking technology within a user-in-the-loop design cycle. The field of virtual rehabilitation is unique in that determining the efficacy of this genre of computer-aided therapies requires prior knowledge of technology issues that may confound patient outcome measures. Benchmarking the technology . displays or data gloves using healthy controls may provide a means of characterizing the normal performance range of the virtual rehabilitation system. This standard not only allows therapists to select appropriate technology for use with their patient populations it also allows them to account for technology limitations when assessing treatment efficacy. Methods An overview of the proposed user-centered design cycle is given. Comparisons of two optical see-through head-worn displays provide an example of benchmarking techniques. Benchmarks were obtained using a novel vision test capable of measuring a user s stereoacuity while wearing different types of head-worn displays. Results from healthy participants who performed both virtual and real-world versions of the stereoacuity test are discussed with respect to virtual rehabilitation design. Results The user-centered design cycle argues for benchmarking to precede virtual environment construction especially for therapeutic applications. Results from real-world testing illustrate the general limitations in