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398The Encoding of Spatial Information During Small-Set EnumerationIn S. Ohlsson & R. Catrambone (eds.), Proceedings of the 32nd Annual Conference of the Cognitive Science Society, Cognitive Science Society. 2010.Using a novel enumeration task, we examined the encoding of spatial information during subitizing. Observers were shown masked presentations of randomly-placed discs on a screen and were required to mark the perceived locations of these discs on a subsequent blank screen. This provided a measure of recall for object locations and an indirect measure of display numerosity. Observers were tested on three stimulus durations and eight numerosities. Enumeration performance was high for displays conta…Read more
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129Fitness Beats Truth in the Evolution of PerceptionActa Biotheoretica 69 (3): 319-341. 2020.Does natural selection favor veridical percepts—those that accurately depict objective reality? Perceptual and cognitive scientists standardly claim that it does. Here we formalize this claim using the tools of evolutionary game theory and Bayesian decision theory. We state and prove the “Fitness-Beats-Truth Theorem” which shows that the claim is false: If one starts with the assumption that perception involves inference to states of the objective world, then the FBT Theorem shows that a strateg…Read more
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45Parts of visual shape as primitives for categorizationBehavioral and Brain Sciences 21 (1): 36-37. 1998.Converging psychophysical evidence suggests that the human visual system parses shapes into component parts for the purposes of object recognition. We examine the Schyns et al. claim of “creation” of features in light of recent work on part-based representations of visual shape, particularly the perceptual rules that human vision uses to parse shapes.
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36Perception, inference, and the veridicality of natural constraintsBehavioral and Brain Sciences 22 (3): 395-396. 1999.Pylyshyn's target article argues that perception is not inferential, but this is true only under a narrow construal of inference. A more general construal is possible, and has been used to provide formal theories of many visual capacities. This approach also makes clear that the evolution of natural constraints need not converge to the “veridical” state of the world.
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33Active vision and the basketball problemBehavioral and Brain Sciences 21 (6): 772-773. 1998.It is fruitful to think of the representational and the organism-centered approaches as complementary levels of analysis, rather than mutually exclusive alternatives. Claims to the contrary by proponents of the organism-centered approach face what we call the “basketball problem.”.
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25Superordinate shape classification using natural shape statisticsCognition 119 (3): 325-340. 2011.
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24Postscript: Qualifying and quantifying constraints on perceived transparencyPsychological Review 115 (4): 1151-1153. 2008.
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22Natural decompositions of perceived transparency: Reply to Albert (2008)Psychological Review 115 (4): 1144-1151. 2008.
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16Principles of contour information: Reply to Lim and Leek (2012)Psychological Review 119 (3): 678-683. 2012.
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14Vision: Form PerceptionIn L. Nadel (ed.), Encyclopedia of Cognitive Science, Nature Publishing Group. 2003.
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11Bayesian hierarchical grouping: Perceptual grouping as mixture estimationPsychological Review 122 (4): 575-597. 2015.
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Helen Tager-flusberg, Daniela plesa-skwerer, Susan faja and Robert M. Joseph (boston university school of medicine) people with Williams syndrome process faces holistically, 11–24 Boaz keysar, shuhong Lin (the university of chicago) and Dale J. Barr (the university of california) (review)Cognition 89 297-298. 2003.