Spatial contrast sensitivity in dynamic and static additive luminance noise.

Vision Research
J Jason McAnany, Kenneth R Alexander

Abstract

The purpose of this study was to define the quantitative relationship between the temporal characteristics of additive luminance noise and the properties of the spatial contrast sensitivity function (CSF). CSFs were obtained from two observers using Gabor patch targets of short duration that were added to white luminance noise with a range of root-mean-square contrasts (c(rms)). The noise was either dynamic or static and was either of the same duration as the test target (synchronous) or of longer duration (asynchronous). For targets presented in asynchronous dynamic, synchronous dynamic, and synchronous static noise, the CSFs became increasingly band-pass with increasing c(rms), whereas the CSFs were low-pass at all levels of c(rms) for targets presented in asynchronous static noise. For all noise types, the properties of the CSFs were well-predicted by the linear amplifier model (LAM), in which the signal energy at threshold (E(t)) is related linearly to noise spectral density (N). The fundamentally different characteristics of CSFs obtained in asynchronous static noise can be accounted for by a previous proposal that this noise type biases contrast sensitivity toward transient (inferred magnocellular) mechanisms. The other t...Continue Reading

References

Feb 1, 1987·Journal of the Optical Society of America. A, Optics and Image Science·G E LeggeA E Burgess
Jul 1, 1973·The Journal of Physiology·J J Kulikowski, D J Tolhurst
Feb 1, 1983·Perception & Psychophysics·A B Watson, D G Pelli
Jan 1, 1996·Vision Research·J Rovamo, H Kukkonen
Jan 1, 1997·Spatial Vision·D H Brainard
Sep 18, 1997·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·J Pokorny, V C Smith
Mar 9, 1999·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·D G Pelli, B Farell
Mar 9, 1999·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·P J BennettL Ozin
Jun 27, 2003·Vision Research·Velitchko ManahilovWilliam A Simpson
Jul 12, 2003·Vision Research·Anna LeonovaVivianne C Smith
Dec 15, 2004·Journal of Vision·Denis G PelliSusana T L Chung
Mar 4, 2005·Vision Research·Susana T L ChungBosco S Tjan
May 1, 2007·Vision Research·Lisa R BettsPatrick J Bennett
Nov 15, 2008·Vision Research·J Jason McAnany, Kenneth R Alexander
Sep 19, 2009·Journal of Vision·Ipek Oruç, Michael S Landy
Nov 4, 2009·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Jason M GoldDaniel Kersten

❮ Previous
Next ❯

Citations

Mar 15, 2014·PloS One·Ge ChenChang-Bing Huang
Nov 16, 2014·Biological cybernetics·Ajanta Kundu, Sandip Sarkar
Jul 30, 2014·Frontiers in Psychology·Cierra HallJ Jason McAnany
Oct 16, 2010·International Journal of Environmental Research and Public Health·Dirk SchreckenbergThomas Eikmann
Mar 15, 2016·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·João M M LinharesSérgio M C Nascimento
Nov 6, 2015·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Cierra HallJ Jason McAnany

❮ 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.