Radial-tangential anisotropy of crowding in the early visual areas

Journal of Neurophysiology
MiYoung KwonBosco S Tjan

Abstract

Crowding, the inability to recognize an individual object in clutter (Bouma H. Nature 226: 177-178, 1970), is considered a major impediment to object recognition in peripheral vision. Despite its significance, the cortical loci of crowding are not well understood. In particular, the role of the primary visual cortex (V1) remains unclear. Here we utilize a diagnostic feature of crowding to identify the earliest cortical locus of crowding. Controlling for other factors, radially arranged flankers induce more crowding than tangentially arranged ones (Toet A, Levi DM. Vision Res 32: 1349-1357, 1992). We used functional magnetic resonance imaging (fMRI) to measure the change in mean blood oxygenation level-dependent (BOLD) response due to the addition of a middle letter between a pair of radially or tangentially arranged flankers. Consistent with the previous finding that crowding is associated with a reduced BOLD response [Millin R, Arman AC, Chung ST, Tjan BS. Cereb Cortex (July 5, 2013). doi:10.1093/cercor/bht159], we found that the BOLD signal evoked by the middle letter depended on the arrangement of the flankers: less BOLD response was associated with adding the middle letter between radially arranged flankers compared with ad...Continue Reading

References

Jan 1, 1976·Vision Research·L Maffei, A Fiorentini
Jul 1, 1992·Neuron·C D Gilbert
Dec 1, 1989·Proceedings of the National Academy of Sciences of the United States of America·C ChubbJ A Solomon
Jan 1, 1985·Vision Research·D M LeviA P Aitsebaomo
Jan 1, 1985·Vision Research·D M Levi, S A Klein
Mar 1, 1968·The Journal of Physiology·D H Hubel, T N Wiesel
Feb 1, 1983·Perception & Psychophysics·A B Watson, D G Pelli
Sep 26, 1996·Nature·S HeJ Intriligator
Jan 1, 1997·Spatial Vision·D H Brainard
Sep 18, 1997·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·F WilkinsonD Ellemberg
Sep 7, 2000·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·R F HessM Tewfik
Sep 21, 2000·Vision Research·J Xing, D J Heeger
Jun 27, 2001·Nature Neuroscience·L ParkesM Morgan
May 1, 1965·The British Journal of Mathematical and Statistical Psychology·G B WETHERILL, H LEVITT
Jan 27, 2005·Journal of Vision·Denis G PelliNajib J Majaj
Apr 29, 2006·Journal of Vision·Yury Petrov, Suzanne P McKee
May 26, 2006·Journal of Neurophysiology·Bosco S TjanZoe Kourtzi
Sep 22, 2006·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Brad C Motter
Jan 26, 2008·Journal of Vision·Anirvan S Nandy, Bosco S Tjan
Jan 26, 2008·Journal of Vision·Brad C Motter, Diglio A Simoni
Jan 26, 2008·Journal of Vision·Yury PetrovSuzanne P McKee
Jan 26, 2008·Journal of Vision·Denis G PelliNajib J Majaj
Oct 7, 2008·Current Opinion in Neurobiology·Denis G Pelli
May 8, 2009·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Brad C Motter
Sep 19, 2009·Journal of Vision·Faraz FarzinDavid Whitney
Jan 8, 2010·Journal of Vision·Benjamin BalasRuth Rosenholtz
Jan 26, 2010·PLoS Computational Biology·Ronald van den BergFrans W Cornelissen
Mar 23, 2011·Trends in Cognitive Sciences·David Whitney, Dennis M Levi
Mar 29, 2011·Vision Research·Yury Petrov, Olga Meleshkevich
Apr 1, 2011·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Jeremy FreemanElisha P Merriam
Apr 28, 2011·Journal of Vision·Jeremy FreemanDavid J Heeger
Aug 16, 2011·Nature Neuroscience·Jeremy Freeman, Eero P Simoncelli
Dec 14, 2011·Attention, Perception & Psychophysics·Jeremy FreemanDenis G Pelli
Jan 11, 2012·Nature Neuroscience·Anirvan S Nandy, Bosco S Tjan

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Citations

Dec 3, 2015·Current Biology : CB·William J Harrison, Peter J Bex
Apr 19, 2016·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Luca RonconiRosilari Bellacosa Marotti
Apr 12, 2016·Vision Research·Daniel R Coates, Susana T L Chung
Nov 3, 2017·Scientific Reports·Francesca StrappiniSabrina Pitzalis
Jul 22, 2018·Journal of Vision·Menaka S MalavitaAllison M McKendrick
Jun 4, 2020·I-Perception·Hans Strasburger
Feb 10, 2019·Proceedings of the National Academy of Sciences of the United States of America·MiYoung Kwon, Rong Liu
Apr 5, 2020·Nature Communications·Christopher A Henry, Adam Kohn
Mar 21, 2020·Proceedings of the National Academy of Sciences of the United States of America·John A Greenwood, Michael J Parsons
Aug 16, 2017·Scientific Reports·Rong LiuMiYoung Kwon
Sep 4, 2020·Translational Vision Science & Technology·Maka MalaniaMark W Greenlee
Aug 15, 2020·Frontiers in Psychology·Francesca StrappiniEnrico di Pace
Apr 12, 2017·Proceedings of the National Academy of Sciences of the United States of America·John A GreenwoodPatrick Cavanagh
Sep 14, 2021·Journal of Vision·Oh-Hyeon ChoungMichael H Herzog
Jan 28, 2022·Investigative Ophthalmology & Visual Science·Foroogh ShamsiMiYoung Kwon

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