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Sensitivity to Color Variations

Russell L. De Valois and Karen K. De Valois

in Spatial Vision

Published in print:
1991
Published Online:
January 2008
ISBN:
9780195066579
eISBN:
9780199872220
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195066579.003.0007
Subject:
Psychology, Cognitive Neuroscience

A study of the visual system is often divided into topics which are then treated as discrete fields. Two of these are spatial vision and color vision. Such an arbitrary division leads one to overlook ... More


Contrast Sensitivity and Acuity

Russell L. De Valois and Karen K. De Valois

in Spatial Vision

Published in print:
1991
Published Online:
January 2008
ISBN:
9780195066579
eISBN:
9780199872220
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195066579.003.0005
Subject:
Psychology, Cognitive Neuroscience

This chapter discusses the various aspects of visual behavior. The overall sensitivity of human observers to spatially varying patterns is considered. The luminance contrast sensitivity function ... More


Multiple Spatial Frequency Channels

Russell L. De Valois and Karen K. De Valois

in Spatial Vision

Published in print:
1991
Published Online:
January 2008
ISBN:
9780195066579
eISBN:
9780199872220
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195066579.003.0006
Subject:
Psychology, Cognitive Neuroscience

This chapter addresses the question of whether a single broadly-tuned mechanism underlies the contrast sensitivity function (CSF). Direct physiological and anatomical data support psychophysical ... More


What Birds See and What They Don’t: Luminance, Contrast, and Spatial and Temporal Resolution

William Hodos

in How Animals See the World: Comparative Behavior, Biology, and Evolution of Vision

Published in print:
2012
Published Online:
May 2012
ISBN:
9780195334654
eISBN:
9780199933167
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195334654.003.0002
Subject:
Psychology, Cognitive Neuroscience, Cognitive Psychology

This chapter describes a psychophysical approach to studying the limits of the perceptual abilities of birds. Birds live in an extremely rich visual world that in many ways is similar to ours, but ... More


Three-Dimensional Patterns

Russell L. De Valois and Karen K. De Valois

in Spatial Vision

Published in print:
1991
Published Online:
January 2008
ISBN:
9780195066579
eISBN:
9780199872220
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195066579.003.0010
Subject:
Psychology, Cognitive Neuroscience

We live in a three-dimensional world, yet the image of that three-dimensional world is mapped onto our two-dimensional retinae. One of the oldest and most enduring questions regarding spatial vision ... More


Retinogeniculate Anatomy and Physiology

Russell L. De Valois and Karen K. De Valois

in Spatial Vision

Published in print:
1991
Published Online:
January 2008
ISBN:
9780195066579
eISBN:
9780199872220
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195066579.003.0003
Subject:
Psychology, Cognitive Neuroscience

The eye contains not only the optical elements that perform the critical task of forming an image of the visual world at the level of the receptors, but also the receptors that transduce light energy ... More


Two-Dimensional Patterns

Russell L. De Valois and Karen K. De Valois

in Spatial Vision

Published in print:
1991
Published Online:
January 2008
ISBN:
9780195066579
eISBN:
9780199872220
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195066579.003.0009
Subject:
Psychology, Cognitive Neuroscience

This chapter considers the psychophysical, physiological, and anatomical evidence for orientation channels and their arrangement, and then considers evidence with respect to the relation between ... More


Spatial Vision

Thomas W. Cronin, Sönke Johnsen, N. Justin Marshall, and Eric J. Warrant

in Visual Ecology

Published in print:
2014
Published Online:
October 2017
ISBN:
9780691151847
eISBN:
9781400853021
Item type:
chapter
Publisher:
Princeton University Press
DOI:
10.23943/princeton/9780691151847.003.0006
Subject:
Biology, Evolutionary Biology / Genetics

This chapter talks about how humans are accustomed to seeing the world in high resolution. Compared to many other animals, humans' eyes are not particularly sensitive to light; nor is their sense of ... More


Spatial Localization: Phase and Position

Russell L. De Valois and Karen K. De Valois

in Spatial Vision

Published in print:
1991
Published Online:
January 2008
ISBN:
9780195066579
eISBN:
9780199872220
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195066579.003.0008
Subject:
Psychology, Cognitive Neuroscience

This chapter addresses the general question of how the visual system knows where something is. The visual system is sensitive to the spatial phase of patterns under some conditions, and in many of ... More


Why Localized Spatial Frequency Filtering?

Russell L. De Valois and Karen K. De Valois

in Spatial Vision

Published in print:
1991
Published Online:
January 2008
ISBN:
9780195066579
eISBN:
9780199872220
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195066579.003.0012
Subject:
Psychology, Cognitive Neuroscience

This chapter argues that visual information is encoded in terms of spatial frequency because the visual world is periodic and can thus be more efficiently encoded in the spatial frequency domain than ... More


Vision

Glen T. Prusky and Robert M. Douglas

in The Behavior of the Laboratory Rat: A Handbook with Tests

Published in print:
2004
Published Online:
May 2009
ISBN:
9780195162851
eISBN:
9780199863891
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195162851.003.0005
Subject:
Neuroscience, Behavioral Neuroscience, Techniques

This chapter discusses some of the methodologies used to measure rat vision, the known visual capabilities of rats, and the implications of rat vision for those researchers who use rats in ... More


Spatial Contrast Sensitivity for Pulsed- and Steady-Pedestal Stimuli

Anna Leonova, Joel Pokorny, and Vivianne C. Smith

in Normal and Defective Colour Vision

Published in print:
2003
Published Online:
April 2010
ISBN:
9780198525301
eISBN:
9780191584947
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198525301.003.0011
Subject:
Psychology, Cognitive Neuroscience

This chapter evaluates spatial modulation sensitivity under conditions inferred to favour magnocellular (MC) and parvocellular (PC) pathways. Pulsed- and Steady-Pedestal Paradigms revealed ... More


Richard Held

Larry R. Squire

in The History of Neuroscience in Autobiography Volume 6

Published in print:
2009
Published Online:
May 2009
ISBN:
9780195380101
eISBN:
9780199864362
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195380101.003.0005
Subject:
Neuroscience, History of Neuroscience

This chapter presents an autobiography of Richard Held. Held and his colleagues studied the effects of sensory rearrangement and have modeled the adaptive processes that reduce, and sometimes ... More


Improving Abnormal Spatial Vision in Adults with Amblyopia

Uri Polat

in Seeing Spatial Form

Published in print:
2005
Published Online:
March 2012
ISBN:
9780195172881
eISBN:
9780199847570
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195172881.003.0018
Subject:
Psychology, Cognitive Psychology

This chapter deals with the visual processing of adults with amblyopia. Plasticity is deemed to exist in the process and can be used to improve the vision of such patients. Through perceptual ... More


Sensitivity to Movement of Configurations of Achromatic and Chromatic Points in Amblyopic Patients

M. L. F. De Mattiello, M. Maneiro, and S. Buglione

in Normal and Defective Colour Vision

Published in print:
2003
Published Online:
April 2010
ISBN:
9780198525301
eISBN:
9780191584947
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198525301.003.0017
Subject:
Psychology, Cognitive Neuroscience

Amblyopia has been attributed to a shift in sensitivity of the visual system toward low spatial-frequency filter mechanisms. This chapter analyzes the capacity to recognize moving signals and how ... More


Scene Vision: Making Sense of What We See

Kestutis Kveraga and Moshe Bar (eds)

Published in print:
2014
Published Online:
May 2015
ISBN:
9780262027854
eISBN:
9780262319898
Item type:
book
Publisher:
The MIT Press
DOI:
10.7551/mitpress/9780262027854.001.0001
Subject:
Neuroscience, Sensory and Motor Systems

For many years, researchers have studied visual recognition with objects—single, clean, clear, and isolated objects, presented to subjects at the center of the screen. In our real environment, ... More


The origin of vision

Michael F. Land and Dan-Eric Nilsson

in Animal Eyes

Published in print:
2012
Published Online:
December 2013
ISBN:
9780199581139
eISBN:
9780191774652
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199581139.003.0001
Subject:
Biology, Animal Biology

Most of the types of eye that we recognize today arose in a brief period during the Cambrian, about 530 million years ago. The development of better eyes coincided with increases in size, speed, and ... More


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