On the surprising salience of curvature in grouping by proximity

Journal of Experimental Psychology. Human Perception and Performance
Lars Strother, Michael Kubovy

Abstract

The authors conducted 3 experiments to explore the roles of curvature, density, and relative proximity in the perceptual organization of ambiguous dot patterns. To this end, they developed a new family of regular dot patterns that tend to be perceptually grouped into parallel contours, dot-sampled structured grids (DSGs). DSGs are similar to the dot lattices used to study grouping by proximity, except that only one of the potential organizations is rectilinear; the others are curvilinear. The authors used the method of M. Kubovy and J. Wagemans (1995) to study grouping by proximity in DSGs. They found that in the competition between the most likely organizations, one rectilinear and the other curvilinear, the latter is more salient. This phenomenon cannot be explained by contemporary accounts of grouping by proximity or contour integration.

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Citations

Jun 2, 2012·PLoS Computational Biology·Udo A ErnstKlaus R Pawelzik
Oct 13, 2006·Proceedings of the National Academy of Sciences of the United States of America·Ohad Ben-Shahar
Feb 26, 2008·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Ela I Olivares, Jaime Iglesias
Jul 24, 2007·Acta Psychologica·Paul C QuinnAngela Hayden
Mar 11, 2015·Frontiers in Human Neuroscience·Lars StrotherGideon P Caplovitz
Apr 4, 2018·American Journal of Health-system Pharmacy : AJHP : Official Journal of the American Society of Health-System Pharmacists·Matthew H RimNancy A Nickman
Aug 5, 2008·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Guy Ben-Yosef, Ohad Ben-Shahar
Sep 21, 2017·Frontiers in Psychology·Axel GrzymischUdo A Ernst

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