Virtual reality has been described as the ultimate human-computer interface (Arthur, 1992). It attempts to eliminate the boundary between the user and the computer and to provide a means for interacting and processing information naturally and intuitively. It is a way for humans to visualize, manipulate, and interact with extremely complex data via a computer-generated environment (Aukstakalnis and Blatner, 1992). Virtual reality was pioneered about 30 years ago when Ivan Sutherland, a computer scientist, built his own head-mounted display (Antonoff, 1993). The term “virtual reality” was coined in the mid-1980s by Jaron Lanier, founder of VPL Research, Inc., in Foster City, California (the first company dedicated to virtual reality environments) (Hamilton, Smith, McWilliams, Schwartz, and Carey, 1992). While “virtual reality” is the popular term, some authors and researchers prefer terms such as “immersive simulation,” “artificial reality,” “telepresence,” “virtual world,” “cyberspace,” or “virtual environment” to label the concept (Peterson, 1992a).
KeywordsVirtual Reality Virtual World Motion Sickness Virtual Patient Virtual Reality System
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