Source: Mental images and their transformations. 1982, p. 64; as cited in: Keith K. Niall, "‘Mental rotation’, pictured rotation, and tandem rotation in depth." Acta psychologica 95.1 (1997): 31-83.
“Nor do such theories provide a ready account for the equivalence of the slopes of the reaction-time functions for the picture-plane and depth pairs. For, in order to explain the dependence of reaction time on angular difference, we must suppose that the features that are being compared are the features of the two-dimensional drawings, which differ more and more with angular departure, and not the features of the three-dimensional objects, which are the same regardless of orientation.”
Source: Mental images and their transformations. 1982, p. 66; as cited in Niall (1997)
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Roger Shepard 10
American psychologist 1929Related quotes
Source: Mental images and their transformations. 1982, p. 178; as cited in Niall (1997)
Source: 1930s, On my Painting (1938), p. 16
the letters
Source: posthumous quotes, Braque', (1968), p. 68
March 24, 1857
Journals (1838-1859)
'Search for the Real in the Visual Arts', p. 44
Search for the Real and Other Essays (1948)
Source: The Sex Sphere (1983), p. 106
Aerts, D. (1996). " Relativity theory: what is reality? http://www.vub.ac.be/CLEA/aerts/publications/1996RelReal.pdf". Foundations of Physics, 26, pp. 1627-1644