Colour constancy and conscious perception of changes of illuminant

Neuropsychologia
John L Barbur, Karoline Spang

Abstract

A sudden change in illuminant (e.g., the outcome of turning on a tungsten light in a room illuminated with dim, natural daylight) causes a "global" change in perceived colour which subjects often recognise as a change of illuminant. In spite of this distinct, global change in the perceptual appearance of the scene caused by significant changes in the wavelength composition of the light reflected from different objects under the new illuminant, the perceived colour of the objects remains largely unchanged and this cornerstone property of human vision is often described as instantaneous colour constancy (ICC). ICC mechanisms are often difficult to study. The generation of appropriate stimuli to isolate ICC mechanisms remains a difficult task since the extraction of colour signals is also confounded in the processing of spatial chromatic context that leads to ICC. The extraction of differences in chromaticity that describe spatial changes in the wavelength composition of the light on the retina is a necessary operation that must precede colour constancy computations. A change of illuminant or changes in the spectral reflectance of the elements that make up the scene under a constant illuminant cause spatial changes in chromatic co...Continue Reading

References

Jul 1, 1992·Vision Research·B J Craven, D H Foster
Apr 1, 1992·Brain : a Journal of Neurology·P Stoerig, A Cowey
Apr 1, 1991·Journal of the Optical Society of America. A, Optics and Image Science·L E ArendR Goldstein
Dec 1, 1990·Brain : a Journal of Neurology·S Zeki
Aug 3, 1989·Nature·C J LueckR S Frackowiak
Jan 1, 1986·Vision Research·E H Land
Jan 1, 1982·Journal of Mathematical Biology·G West, M H Brill
Dec 22, 1994·Proceedings. Biological Sciences·J L BarburG T Plant
May 1, 1993·Neurology·M RizzoA R Damasio
Oct 27, 1998·Consciousness and Cognition·C A HeywoodA Cowey
Dec 3, 1998·Experimental Brain Research·C A HeywoodA Cowey
Aug 31, 1999·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·S Zeki, A Bartels
Sep 29, 1999·Proceedings of the National Academy of Sciences of the United States of America·J L BarburJ A Harlow
Nov 26, 1999·Proceedings of the National Academy of Sciences of the United States of America·V Walsh
Jan 29, 2000·The European Journal of Neuroscience·A Bartels, S Zeki
Jun 22, 2000·Proceedings of the National Academy of Sciences of the United States of America·K Moutoussis, S Zeki
Sep 29, 2000·Vision Research·S K Shevell, J Wei
Aug 25, 2001·Vision Research·S M Nascimento, D H Foster
Nov 13, 2001·The European Journal of Neuroscience·A Cowey, P Stoerig
Mar 22, 2002·NeuroImage·Christopher R GenoveseThomas Nichols
Apr 5, 2003·Current Biology : CB·Anya Hurlbert
Jan 30, 2004·Journal of Neurophysiology·Elizabeth N JohnsonRobert Shapley
Sep 3, 2004·Vision Research·Thomas WachtlerRainer Hertel
Jul 28, 2005·Proceedings of the National Academy of Sciences of the United States of America·Bevil R Conway, Margaret S Livingstone
Oct 30, 2007·Neuron·Brian A WandellAlyssa A Brewer

❮ Previous
Next ❯

Citations

Mar 1, 2014·Sensors·Javier Vazquez-Corral, Marcelo Bertalmío
May 16, 2014·NeuroImage·Atsushi WadaHiroshi Ando
Apr 4, 2014·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·I J MurrayJ M F Kelly
Feb 15, 2012·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·R J Lee, H E Smithson
Jun 30, 2009·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Kouji TakanoKenji Kansaku
Oct 20, 2015·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Lara SchlaffkeMartin Tegenthoff
Dec 3, 2014·Current Biology : CB·Liam J NormanRobert W Kentridge
Sep 30, 2015·Vision Research·Alexander PastukhovJochen Braun
Sep 21, 2010·Vision Research·David H Foster
Apr 17, 2012·Neuron·Anna W RoeWim Vanduffel
Apr 1, 2015·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Semir Zeki
May 14, 2016·Proceedings. Biological Sciences·Peter OlssonAlmut Kelber
Apr 7, 2017·Optics Express·Kevin A G SmetPeter Hanselaer
May 28, 2020·Proceedings of the National Academy of Sciences of the United States of America·Insub KimWon Mok Shim
Aug 11, 2019·The Journal of Experimental Biology·Daniel Escobar-CamachoKaren L Carleton
Mar 3, 2020·Frontiers in Psychology·Victor A F Lamme
Dec 30, 2020·Journal of Vision·Ruben PastilhaAnya Hurlbert
Apr 13, 2019·NeuroImage·Gabor StefanicsJakob Heinzle

❮ 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.