Perception of virtual auditory shapes
Hollander, Ari J.
Furness III, Thomas A.
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Virtual environments may help us to understand and eventually extend the domain of auditory perception. The authors performed two experiments which verified the ability of subjects to recognize geometric shapes and alphanumeric characters presented by sequential excitation of elements in a L'virtuals peaker array." Performance on the identification task was significantly above chance (33% correct from a field of 10 choices and 42% from a field of 6 choices). The authors noted a highly sigdicant inverse linear dependence of performance on the number of pixels in a pattern. They interpreted this dependency as an indication that the task was cognitively loaded. Analyses of common misidentifications support the hypothesis that a major component of the pattern recognition process derives from perception of the overall motion. These experiments have shown that virtual reality is a viable substitute for the complex aparatus that future work would otherwise require.