Investigating shape representation using sensitivity to part- and axis-based transformations

Vision Research
Kristina DenisovaManish Singh

Abstract

Part- and axis-based approaches organize shape representations in terms of simple parts and their spatial relationships. Shape transformations that alter qualitative part structure have been shown to be more detectable than those that preserve it. We compared sensitivity to various transformations that change quantitative properties of parts and their spatial relationships, while preserving qualitative part structure. Shape transformations involving changes in length, width, curvature, orientation and location were applied to a small part attached to a larger base of a two-part shape. Increment thresholds were estimated for each transformation using a 2IFC procedure. Thresholds were converted into common units of shape difference to enable comparisons across transformations. Higher sensitivity was consistently found for transformations involving a parameter of a single part (length, width, curvature) than those involving spatial relations between two parts (relative orientation and location), suggesting a single-part superiority effect. Moreover, sensitivity to shifts in part location - a biomechanically implausible shape transformation - was consistently poorest. The influence of region-based geometry was investigated via ster...Continue Reading

References

Feb 23, 1978·Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character·D Marr, H K Nishihara
Apr 1, 1989·Cognitive Psychology·M J Tarr, S Pinker
Jan 1, 1988·Perception·K A Stevens, A Brookes
Apr 1, 1987·Psychological Review·Irving Biederman
Feb 1, 1973·Journal of Theoretical Biology·H Blum
Aug 1, 1981·Journal of Experimental Psychology. Human Perception and Performance·L S MarkR E Shaw
Dec 1, 1984·Cognition·D D Hoffman, W A Richards
Feb 1, 1980·Scientific American·J T ToddJ B Pittenger
Jan 1, 1993·Perception·C B Cave, S M Kosslyn
Jan 1, 1996·Perception·K SiddiqiB B Kimia
Jan 1, 1997·Vision Research·J M Wolfe, S C Bennett
Jan 1, 1997·Spatial Vision·D H Brainard
Apr 1, 1997·Cognition·D D Hoffman, M Singh
Mar 10, 1999·Perception & Psychophysics·S E Watson, A F Kramer
Jun 17, 1999·Perception & Psychophysics·M SinghD D Hoffman
Oct 3, 1999·Perception·J Feldman, W Richards
Mar 7, 2000·Perception & Psychophysics·J HullemanF Boselie
Jul 26, 2000·Psychonomic Bulletin & Review·S P VeceraJ McGoldrick
Apr 3, 2001·Perception & Psychophysics·S P VeceraJ C Filapek
Jan 22, 2002·Perception & Psychophysics·F A Wichmann, N J Hill
Jan 22, 2002·Perception & Psychophysics·F A Wichmann, N J Hill
Dec 20, 2002·Perception & Psychophysics·Yaoda Xu, Manish Singh
Dec 25, 2002·Cognition·Marco Bertamini, Camilla J Croucher
Aug 2, 2003·Cognition·Elan BarenholtzManish Singh
Sep 6, 2003·Perception & Psychophysics·Flip PhillipsAstrid M L Kappers
Feb 8, 2005·Vision Research·C FantoniW Gerbino
Jun 3, 2005·Journal of Vision·Elias H CohenJacob Feldman
Jul 27, 2005·Cognition·Joeri De Winter, Johan Wagemans
Aug 16, 2005·Acta Psychologica·Marco Bertamini, Tracy Farrant
Feb 2, 2006·Cognition·Elan Barenholtz, Jacob Feldman
May 11, 2006·Acta Psychologica·Jacqueline M Fulvio, Manish Singh
Aug 10, 2006·Journal of Vision·Elias H Cohen, Manish Singh
Sep 19, 2006·Vision Research·Kenneth J Hayworth, Irving Biederman
Nov 2, 2006·Perception·Kristina DenisovaEileen Kowler
Nov 15, 2006·Proceedings of the National Academy of Sciences of the United States of America·Jacob Feldman, Manish Singh
Sep 18, 2007·Vision Research·Elias H Cohen, Manish Singh
Oct 9, 2009·Journal of Vision·Sung-Ho Kim, Jacob Feldman
Oct 5, 2010·Journal of Vision·Elan Barenholtz
Jun 1, 1997·Psychonomic Bulletin & Review·J WagemansL Van Gool
Mar 29, 2011·Cognition·John WilderManish Singh

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Citations

Jun 30, 2016·Vision Research·Frank JäkelMichael H Herzog
Sep 16, 2016·Cognitive Psychology·Filipp Schmidt, Roland W Fleming
Nov 9, 2016·Scientific Reports·Patrick SpröteRoland W Fleming
Mar 17, 2018·Attention, Perception & Psychophysics·Adam S LowetBrian J Scholl
Nov 20, 2019·Attention, Perception & Psychophysics·Pieter MoorsJohan Wagemans
May 28, 2019·Brain and Language·Kristina Denisova

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