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, 171 (3972), 701-3

Mental Rotation of Three-Dimensional Objects

Mental Rotation of Three-Dimensional Objects

R N Shepard et al. Science.


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.

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