Defining the units of competition: influences of perceptual organization on competitive interactions in human visual cortex.

Journal of Cognitive Neuroscience
Stephanie McMains, S Kastner

Abstract

Multiple stimuli that are present simultaneously in the visual field compete for neural representation. At the same time, however, multiple stimuli in cluttered scenes also undergo perceptual organization according to certain rules originally defined by the Gestalt psychologists such as similarity or proximity, thereby segmenting scenes into candidate objects. How can these two seemingly orthogonal neural processes that occur early in the visual processing stream be reconciled? One possibility is that competition occurs among perceptual groups rather than at the level of elements within a group. We probed this idea using fMRI by assessing competitive interactions across visual cortex in displays containing varying degrees of perceptual organization or perceptual grouping (Grp). In strong Grp displays, elements were arranged such that either an illusory figure or a group of collinear elements were present, whereas in weak Grp displays the same elements were arranged randomly. Competitive interactions among stimuli were overcome throughout early visual cortex and V4, when elements were grouped regardless of Grp type. Our findings suggest that context-dependent grouping mechanisms and competitive interactions are linked to provide...Continue Reading

References

Apr 1, 1976·Scientific American·G Kanizsa
Jul 1, 1989·Psychological Review·J Duncan, G W Humphreys
Nov 22, 1974·Science·N Weisstein, C S Harris
May 1, 1983·Perception & Psychophysics·C Bundesen, L F Pedersen
Jan 1, 1995·Annual Review of Neuroscience·R Desimone, J Duncan
Aug 15, 1993·Proceedings of the National Academy of Sciences of the United States of America·I Kovács, B Julesz
Oct 7, 1993·Nature·D H GrosofM J Hawken
Jun 1, 1996·Computers and Biomedical Research, an International Journal·R W Cox
Dec 1, 1996·Cognitive Psychology·J Driver, G C Baylis
Jan 1, 1997·Spatial Vision·D H Brainard
Mar 1, 1995·NeuroImage·K J FristonR Turner
Feb 7, 1998·Journal of Neurophysiology·G H RecanzoneU Schwarz
Aug 29, 1998·Neuroreport·P Vuilleumier, T Landis
Jan 12, 1999·Neuron·R B TootellA M Dale
Feb 15, 2001·Proceedings of the National Academy of Sciences of the United States of America·T S Lee, M Nguyen
Mar 14, 2001·Cognition·J DriverE Freeman
Aug 17, 2001·Journal of Cognitive Neuroscience·C M ArringtonS M Rao
Sep 10, 2002·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Alex R WadeBrian A Wandell
Feb 21, 2003·Current Biology : CB·Christian F AltmannZoe Kourtzi
Apr 3, 2003·Journal of Experimental Psychology. Human Perception and Performance·Marlene Behrmann, Ruth Kimchi
Oct 16, 2004·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Keith A SchneiderSabine Kastner
Jul 12, 2005·Nature Neuroscience·Diane M Beck, Sabine Kastner
Nov 5, 2005·Journal of Cognitive Neuroscience·Marianne Maertens, Stefan Pollmann
Jan 12, 2007·Journal of Cognitive Neuroscience·Marianne Maertens, Stefan Pollmann
Mar 3, 2007·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Leila Montaser-KouhsariJonas Larsson
May 18, 2007·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Jascha D SwisherDavid C Somers
Jun 5, 2007·Psychonomic Bulletin & Review·Ruth KimchiAliza Cohen-Savransky
Dec 14, 2007·Vision Research·Yaffa YeshurunMarisa Carrasco
Jan 15, 2008·Nature Neuroscience·Christina S Konen, Sabine Kastner
Jan 26, 2008·Journal of Vision·Diane M Beck, Sabine Kastner
May 9, 2008·Journal of Neurophysiology·Rory Sayres, Kalanit Grill-Spector

❮ Previous
Next ❯

Citations

Oct 3, 2013·Proceedings of the National Academy of Sciences of the United States of America·Michele A CoxAlexander Maier
Sep 14, 2011·PloS One·Krisztina NagyGyula Kovács
Jan 14, 2011·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Stephanie McMains, Sabine Kastner
Apr 8, 2014·Journal of Cognitive Neuroscience·Michal BernsteinGalit Yovel
Jul 16, 2014·Proceedings of the National Academy of Sciences of the United States of America·Daniel KaiserMarius V Peelen
Apr 26, 2013·Human Brain Mapping·Davide NardoEmiliano Macaluso
May 7, 2013·Neuropsychologia·Gyula KovácsBruno Rossion
Jan 16, 2015·The Quarterly Journal of Experimental Psychology : QJEP·Glyn W Humphreys
May 10, 2011·Neuropsychologia·Markus ConciHermann J Müller
Jun 2, 2015·PloS One·Xing ZhangBaoding Zhou
Aug 2, 2013·Journal of Neurophysiology·Won Mok ShimNancy Kanwisher
Sep 19, 2019·Psychological Science·Liuba PapeoSalvador Soto-Faraco
Apr 21, 2021·NeuroImage·Brian P KeaneMichael W Cole
Dec 1, 2019·NeuroImage·Mohammad ShahdlooTolga Çukur

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience
Stephanie McMains, S Kastner
Proceedings of the National Academy of Sciences of the United States of America
Leila ReddyRufin VanRullen
© 2022 Meta ULC. All rights reserved