Cone Shape and Color Vision: Unification of Structure and Perception - Softcover

Medeiros, John A

Softcover

ISBN 10: 1933580224 ISBN 13: 9781933580227

Publisher: Fifth Estate, 2006

Synopsis

Cone Shape and Color Vision: Unification of Structure and Perception finally provides the answer to a question that should have been asked long before; why are the color receptors of the eye cone shaped? The book explores an alternative basis for understanding human color vision based on the very simple principle that the physical structure of the cone color receptors spatially separates light by wavelength, each cone acting as a miniature spectrometer. The concept is shown to lead to a straightforward explanation of many different aspects of human color perception such as its hue discrimination and saturation properties, the perceptual similarity of violet and purple, the change in hue with direction of incidence of light on the retina, the phenomenon of subjective colors, and a way of understanding the common forms of color blindness. Original research is included directly demonstrating this color separation effect in optical fibers in precisely the manner expected for the retinal cones. Experimental results are also presented on the direct separation of rod and cone perception. This separated perception is used to directly measure the relative latency of color perception as a function of wavelength. The book describes how this chromatic latency, in conjunction with saccadic eye movements, converts the cone spectrometer effect into a color code for perception. Taken together, the model presented, along with these experimental results, can form the basis of a new and comprehensive understanding of human color vision - one that is not contradicted by the available evidence and provides a more logical and connected way of understanding human color perception.

About this title

From the Publisher

Seldom is a Publisher offered an opportunity to make a contribution of this magnitude.

Dr. John Medeiros offers the first unified theory of color vision. It makes sense, it answers the central question of how color vision works, and it challenges the accepted theories. Now scientists and doctors must decide to investigate or allow traditional views to hold them back. Those who can not see in color now have hope.

From the Author

This book will not be immediately welcomed by researchers in the color vision field since it proposes a model that goes against the grain of a basic tenant of current color vision science: that human color vision is based on the presence of three cone types in the retina. In common parlance the three cone types are generally termed the Long, Middle, and Short wavelength sensitive cones (L, M, and S cones) since their putative sensitivities don’t match up very well with the red, green, and blue color namesakes.

Edition details

• Publisher: Fifth Estate
• Publication date: 2006
• Language: English
• ISBN 10: 1933580224
• ISBN 13: 9781933580227
• Binding: Paperback
• Number of pages: 216