Abstract:To perceive the three-dimensional rotation of a shadow figure, displacement and line length change are required. Without displacement, persons perceive a line lengthening and shortening on a two-dimensional plane. The present investigation attempted to create the kinetic depth effect without displacement by including auditory input. 48 persons were randomly assigned to two groups (line-length change with tone or line-length change without tone). The tone group received sound through headphones which oscillated… Show more
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