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We generalize from one situation to another not because we cannot tell the difference between the two situations but because we judge that they are l… - Roger Shepard
" "We generalize from one situation to another not because we cannot tell the difference between the two situations but because we judge that they are likely to belong to a set of situations having the same consequence.
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About Roger Shepard
Roger Newland Shepard (January 30, 1929 – May 30, 2022) was a cognitive scientist and author of the (1987). He is considered a father of research on spatial relations. He studied , and was an inventor of .
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Native Name:
Roger Newland Shepard
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Roger N. Shepard
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Additional quotes by Roger Shepard
I suggest that the psychophysical function that maps physical parameter space into a species' psychological space has been shaped over evolutionary history so that consequential regions for that species, although variously shaped, are not consistently elongated or flattened in particular directions.
Most studies employing three-dimensional objects as stimuli have used simultaneous presentation whereas most studies employing two-dimensional objects have used comparison of a single visual stimulus with a memory presentation. We suspect that it is this procedural difference rather than the difference in dimensionality that is the principal determiner of rate of mental rotation.
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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.
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