A chronometric study of mental paper folding

Mental Rotation of Three-Dimensional Objects

Roger N. Shepard, Jacqueline Metzler · Science · 1971 · 6.2K citations

Medicine, Psychology, Perspective Drawing +16

On the process of comparing sentences against pictures

Herbert H. Clark, William G. Chase · Cognitive Psychology · 1972 · 1.1K citations

Language Studies, Linguistics, Psycholinguistics +5

Second-order isomorphism of internal representations: Shapes of states

Roger N. Shepard, Susan F. Chipman · Cognitive Psychology · 1970 · 662 citations

Humanities, Physics, Philosophy Of Mind +5