Pushing the limits of transparent-motion detection with binocular disparity

Vision Research
John A Greenwood, Mark Edwards

Abstract

When transparent motion is defined purely by direction differences, observers fail to detect more than two signal directions simultaneously [Edwards, M., & Greenwood, J.A. (2005). The perception of motion transparency: A signal-to-noise limit. Vision Research, 45, 1877-1884]. This limit is strongly related to signal-detection thresholds for transparent motion, which are several times higher than uni-directional thresholds. When the effective signal intensities are elevated by speed differences that drive independent global-motion systems, the transparent-motion limit can be extended to allow detection of three signals [Greenwood, J.A., & Edwards, M. (2006). An extension of transparent-motion detection limit using speed-tuned global-motion systems. Vision Research, 46, 1440-1449]. Because there are independent disparity-tuned global-motion systems, distributing transparent-motion signals across distinct depth planes also allows an increase in their effective signal intensity. In the present study, the addition of depth differences enabled the simultaneous detection of three signals. However, as with the addition of speed differences, observers were not able to detect four signals, which would be predicted if signal intensity wer...Continue Reading

References

Jan 1, 1976·Perception·J AtkinsonM R Francis
Jan 1, 1991·Vision Research·D WilliamsR Sekuler
Nov 1, 1988·Perception & Psychophysics·R A Akerstrom, J T Todd
Feb 1, 1971·The Journal of the Acoustical Society of America·H Levitt
Jan 1, 1984·Vision Research·D W Williams, R Sekuler
Sep 1, 1980·Psychological Review·K Ball, R Sekuler
Jan 1, 1995·Current Biology : CB·O Braddick
Nov 1, 1994·Vision Research·M Edwards, D R Badcock
Jan 1, 1993·Spatial Vision·M von GrünauM Kwas
Nov 1, 1993·Visual Neuroscience·K H BrittenJ A Movshon
Mar 1, 1993·Vision Research·J E Raymond
Feb 1, 1993·Vision Research·J C Trueswell, M M Hayhoe
Sep 25, 1998·Vision Research·M EdwardsA T Smith
May 26, 1999·Vision Research·P B HibbardB DeBruyn
May 27, 1999·Vision Research·M Edwards, S Nishida
May 27, 1999·Vision Research·A T SmithO J Braddick
Jan 1, 2000·Perception·P B Hibbard, M F Bradshaw
Jan 1, 2000·Perception·R J Snowden, M C Rossiter
Mar 4, 2000·Nature Neuroscience·S TreueH J Rauber
Apr 5, 2001·Nature·R van Ee, B L Anderson
Nov 2, 2001·Cognitive Psychology·J Intriligator, P Cavanagh
Jun 5, 2002·Vision Research·Oliver J BraddickWilliam Curran
Jan 22, 2003·Vision Research·Scott N J WatamaniukR Eric Stohr
Aug 15, 2003·Perception·Lavanya Viswanathan, Ennio Mingolla
Oct 22, 2003·Vision Research·Julian Michael Wallace, Pascal Mamassian
Mar 31, 2005·Vision Research·Mark Edwards, John A Greenwood
Jul 5, 2005·Vision Research·Sieu K KhuuAnthony Hayes
Jul 19, 2005·Vision Research·Fatima M Felisberti, Johannes M Zanker

❮ Previous
Next ❯

Citations

Feb 8, 2007·Proceedings. Biological Sciences·William CurranAlan Johnston
Mar 10, 2015·Vision Research·Christopher Patrick Taylor, Peter J Bex
Dec 18, 2013·Vision Research·Reuben Rideaux, Mark Edwards
Oct 24, 2012·Vision Research·Mark Edwards, Reuben Rideaux
Mar 23, 2013·Vision Research·Claire V HutchinsonAmanda Arena
Apr 30, 2008·Visual Neuroscience·Ari RosenbergDavid C Bradley

❮ 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.