2014 IEEE Virtual Reality (VR)
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Abstract

In four-sided CAVE-like VR systems, the absence of the rear wall has been shown to decrease the level of immersion and can introduce breaks in presence. With this experiment we analyse how user attention is diverted while physically walking in a virtual environment, when audio and/or visual attractors are present. Key features of the experiment are the fact that auditory feedback was delivered through binaural audio rendering dependent on the user's head position and orientation and that the four-sided CAVE used for the experiment allowed users to walk up to 9m in straight line. In the experiment we analysed how different “attractors” (audio and/or visual, static or dynamic) modify the user's attention. Results of the experiment show that audio-visual attractors are the most efficient attractors in order to keep the user's attention toward the inside of the CAVE.
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