simulation adaptation syndrome

Eye focus conflict and virtual picture latency can lead to eye strain, disconfiguration, sickness and even health problems in the long run. These symptoms are "Simulation Adaptation Syndrome" or SAS. Women tend to experience more SAS than men. People can adapt to virtual reality to some extent. Similarly, SAS is frequently less serious when people experience multi-dimensional Virtual Reality (VR) bit by bit through a series of sessions. The sessions start out only a couple minutes long and then bit by bit grow in duration, with real world intermissions between sessions. With current technology it is challenging to avoid these problems. In any event, these problems may eventually be significantly reduced by evolving science and equipment especially: external image display systems with variable distance imaging (such as domes with multiple layers of translucent screens), holotechnology imaging (with 3D pictures projected in mid-air), or internal body imaging (projecting pictures directly onto the retinas or direct neuroelectric transferral from a computer to the optic nerve or neural centers in the brain.) Also consider Research Center for Virtual Environments and Behavior for more regarding VR.

Movement and contact are central to interaction from humans to computers. This happens through keypad strokes, mouse movements, motion-recording hand devices, and other motion-tracking mechanisms. Motion and touch are also significant for interaction from the setting to human beings in the tangible world, but is unusual in virtual reality caused by the constraints of present day technology. Some types of equipment to track our movement can react to movement rapidly and accurately. However they can be clumsy to use and limit large-scale motion. Other machines track motion by the interaction of travelling objects with magnetism, but these can be imprecise in addition to slow. Other machines use ultrasound to sense the location and motion by one's body. Further, Virtual Tours Wyoming deals with these virtual reality subjects.

Virtual Reality covers more information.