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Mental Rotation of Three-Dimensional Objects
Roger N. Shepard and Jacqueline Metzler
New Series, Vol. 171, No. 3972 (Feb. 19, 1971), pp. 701-703
Published by: American Association for the Advancement of Science
Stable URL: http://www.jstor.org/stable/1731476
Page Count: 3
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The time required to recognize that two perspective drawings portray objects of the same three-dimensional shape is found to be (i) a linearly increasing function of the angular difference in the portrayed orientations of the two objects and (ii) no shorter for differences corresponding simply to a rigid rotation of one of the two-dimensional drawings in its own picture plane than for differences corresponding to a rotation of the three-dimensional object in depth.
Science © 1971 American Association for the Advancement of Science