Walker J T, Walker M J, 1988, "The apparent size of three-dimensional objects and their silhouettes: a solid-superiority effect" Perception 17(1) 23 – 30
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The apparent size of three-dimensional objects and their silhouettes: a solid-superiority effect
James T Walker, M Jill Walker
Received 8 July 1987, in revised form 19 February 1988
Abstract. A solid object looks larger than its outline or silhouette under many viewing conditions. This solid-superiority effect may result from the assimilation or confusion of visual contours within the projection of a three-dimensional object on the picture plane. An aspect of the Müller-Lyer illusion may also play a role.
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