PMID: 8974734Mar 1, 1995Paper

Representation of similarity in three-dimensional object discrimination

Neural Computation
S Y Edelman

Abstract

How does the brain represent visual objects? In simple perceptual generalization tasks, the human visual system performs as if it represents the stimuli in a low-dimensional metric psychological space (Shepard 1987). In theories of three-dimensional (3D) shape recognition, the role of feature-space representations [as opposed to structural (Biederman 1987) or pictorial (Ullman 1989) descriptions] has long been a major point of contention. If shapes are indeed represented as points in a feature space, patterns of perceived similarity among different objects must reflect the structure of this space. The feature space hypothesis can then be tested by presenting subjects with complex parameterized 3D shapes, and by relating the similarities among subjective representations, as revealed in the response data by multidimensional scaling (Shepard 1980), to the objective parameterization of the stimuli. The results of four such tests, accompanied by computational simulations, support the notion that discrimination among 3D objects may rely on a low-dimensional feature space representation, and suggest that this space may be spanned by explicitly encoded class prototypes.

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Citations

May 15, 1997·Neural Computation·S Edelman, S Duvdevani-Bar
Jun 13, 2006·Neural Computation·Christian EckesChristoph von der Malsburg
Aug 18, 2012·PloS One·Franco CaudaMartina Amanzio
Jul 20, 2002·Cognition·Fiona N Newell, Heinrich H Bülthoff
Jul 3, 2007·Neural Networks : the Official Journal of the International Neural Network Society·Alessio Plebe, Rosaria Grazia Domenella
Jan 1, 1996·Perception·S MakiokaH Yamashita
Jan 1, 1996·Network : Computation in Neural Systems·Suzanna Becker
Feb 27, 2001·Journal of Cognitive Neuroscience·Z Solan, E Ruppin
Aug 29, 1997·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·I Biederman, P Kalocsai
Aug 29, 1997·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·S Edelman, S Duvdevani-Bar
Oct 8, 2009·Perception·Irving Biederman, Eric E Cooper
Nov 17, 2020·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Helen C BarronCassandra Sampaio-Baptista
Aug 31, 2001·Journal of Theoretical Biology·A Lapedes, R Farber
Jun 2, 2021·PLoS Computational Biology·Yaniv MorgensternRoland W Fleming

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