Download or read book Color Vision Sensitivity in Normally Dichromatic Species and Humans written by Richard E. Van Arsdel and published by . This book was released on 2002-09-01 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spectral sensitivity functions for large, long-duration spectral stimuli presented on a photopic white background indicate that wavelength opponent mechanisms mediate detection of such stimuli in both normal and dichromatic humans. Normal humans detect the color of spectral flashes at detection threshold intensities, supporting the premise that wavelength opponent processes signal color. However, dichromatic humans do not see some colors at threshold; rather, they require stimuli up to about 0.4 log units above detection intensity. This suggests that dichiomatic humans may have a defect in postre- ceptoral color processing. To test this, we determined color discrimination thresholds in normally occurring dichromats, including the chipmunk, the 13-lined ground squirrel, and the tree shrew.
Download or read book Color Vision Sensitivity in Normally Dichromatic Species and Humans written by and published by . This book was released on 2002 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spectral sensitivity functions for large, long-duration spectral stimuli presented on a photopic white background indicate that wavelength opponent mechanisms mediate detection of such stimuli in both normal and dichromatic humans. Normal humans detect the color of spectral flashes at detection threshold intensities, supporting the premise that wavelength opponent processes signal color. However, dichromatic humans do not see some colors at threshold; rather, they require stimuli up to about 0.4 log units above detection intensity. This suggests that dichiomatic humans may have a defect in postre- ceptoral color processing. To test this, we determined color discrimination thresholds in normally occurring dichromats, including the chipmunk, the 13-lined ground squirrel, and the tree shrew.
Download or read book Comparative Color Vision written by Gerald Jacobs and published by Elsevier. This book was released on 2013-06-11 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comparative Color Vision provides information about the means by which color vision has been studied in nonhuman animals and about the outcomes of these studies for a variety of representative species. Individuals who become interested in color vision in animals come from a variety of different educational backgrounds—from the traditional biological and behavioral sciences as well as from more applied fields. Accordingly, this book includes sufficient tutorial information about color vision so that a relative newcomer would be able to make sense out of this area without having to search out still more background material. To provide this, basic information about the psychophysics of color vision and about the methods used to study color vision in animals is presented; along with coverage of the broad range of biological mechanisms responsible for color vision. Subsequent chapters present systematic reviews of studies of color vision in a wide selection of vertebrate species. The final chapter is devoted to a discussion of two fascinating issues raised by studies of animal color vision: the evolutionary origins and the functional utility of color vision.
Download or read book Handbook of Color Psychology written by Andrew J. Elliot and published by Cambridge University Press. This book was released on 2015-12-17 with total page 1737 pages. Available in PDF, EPUB and Kindle. Book excerpt: We perceive color everywhere and on everything that we encounter in daily life. Color science has progressed to the point where a great deal is known about the mechanics, evolution, and development of color vision, but less is known about the relation between color vision and psychology. However, color psychology is now a burgeoning, exciting area and this Handbook provides comprehensive coverage of emerging theory and research. Top scholars in the field provide rigorous overviews of work on color categorization, color symbolism and association, color preference, reciprocal relations between color perception and psychological functioning, and variations and deficiencies in color perception. The Handbook of Color Psychology seeks to facilitate cross-fertilization among researchers, both within and across disciplines and areas of research, and is an essential resource for anyone interested in color psychology in both theoretical and applied areas of study.
Download or read book Webvision written by Helga Kolb and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Procedures for Testing Color Vision written by and published by National Academies Press. This book was released on 1981-01-01 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Human Color Vision written by Jan Kremers and published by Springer. This book was released on 2016-12-06 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our understanding of human color vision has advanced tremendously in recent years, helped along by many new discoveries, ideas, and achievements. It is therefore timely that these new developments are brought together in a book, assembled specifically to include new research and insight from the leaders in the field. Although intentionally not exhaustive, many aspects of color vision are discussed in this Springer Series in Vision Research book including: the genetics of the photopigments; the anatomy and physiology of photoreceptors, retinal and cortical pathways; color perception; the effects of disorders; theories on neuronal processes and the evolution of human color vision. Several of the chapters describe new, state-of-the-art methods within genetics, morphology, imaging techniques, electrophysiology, psychophysics, and computational neuroscience. The book gives a comprehensive overview of the different disciplines in human color vision in a way that makes it accessible to specialists and non-specialist scientists alike. About the Series: The Springer Series in Vision Research is a comprehensive update and overview of cutting edge vision research, exploring, in depth, current breakthroughs at a conceptual level. It details the whole visual system, from molecular processes to anatomy, physiology and behavior and covers both invertebrate and vertebrate organisms from terrestrial and aquatic habitats. Each book in the Series is aimed at all individuals with interests in vision including advanced graduate students, post-doctoral researchers, established vision scientists and clinical investigators. The series editors are N. Justin Marshall, Queensland Brain Institute, The University of Queensland, Australia and Shaun P. Collin, Neuroecology Group within the School of Animal Biology and the Oceans Institute at the University of Western Australia.
Download or read book Color Vision written by Karl R. Gegenfurtner and published by Cambridge University Press. This book was released on 2001-05-28 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Color Vision, first published in 2000, defines the state of knowledge about all aspects of human and primate color vision.
Download or read book Human Color Vision written by Peter K. Kaiser and published by Washington, DC : Optical Society of America. This book was released on 1996 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedia of Color Science and Technology written by Renzo Shamey and published by Springer Nature. This book was released on 2023-09-29 with total page 1634 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fully revised and expanded 2nd edition provides a single authoritative resource describing the concepts of color and the application of color science across research and industry. Significant changes for the 2nd edition include: New and expanded sections on color engineering More entries on fundamental concepts of color science and color terms Many additional entries on specific materials Further material on optical concepts and human visual perception Additional articles on organisations, tools and systems relevant to color A new set of entries on 3D presentation of color In addition, many of the existing entries have been revised and updated to ensure that the content of the encyclopedia is current and represents the state of the art. The work covers the full gamut of color: the fundamentals of color science; the physics and chemistry; color as it relates to optical phenomena and the human visual system; and colorants and materials. The measurement of color is described through entries on colorimetry, color spaces, color difference metrics, color appearance models, color order systems and cognitive color. The encyclopedia also has extensive coverage of applications throughout industry, including color imaging, color capture, display and printing, and descriptions of color encodings, color management, processing color and applications relating to color synthesis for computer graphics are included. The broad scope of the work is illustrated through entries on color in art conservation, color and architecture, color and education, color and culture, and biographies of some of the key figures involved in color research throughout history. With over 250 entries from color science researchers across academia and industry, this expanded 2nd edition of the Encyclopedia of Color Science and Technology remains the most important single resource in color science.
Download or read book Neurology of Vision and Visual Disorders written by and published by Elsevier. This book was released on 2021-04-06 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neurology of Vision and Visual Disorders, Volume 178 in the Handbooks of Neurology series provides comprehensive summaries of recent research on the brain and nervous system. This volume reviews alterations in vision that stem from the retina to the cortex. Coverage includes content on vision and driving derived from the large amount of time devoted in clinics to determining who is safe to drive, along with research on the interplay between visual loss, attention and strategic compensations that may determine driving suitability. The title concludes with vision therapies and the evidence behind these approaches. Each chapter is co-written by a basic scientist collaborating with a clinician to provide a solid underpinning of the mechanisms behind the clinical syndromes. Reviews the neurological underpinnings of visual perception disorders Encompasses the cortex to the retina Covers functional organization, electrophysiology and subcortical visual pathways Discusses assessment, diagnosis and management of visual perception disorders Includes international experts from Australia, Canada, Denmark, Germany, Singapore, and the UK and US
Download or read book Neurophysiological Aspects of Color Vision in Primates written by E. Zrenner and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: "To explain all nature is too difficult a task for anyone man or even for anyone age. Tis much better to do a little with certainty, and leave the rest for others that come after you, than to explain all things ... " Sir Isaac Newton (1642-1727) This book describes and discusses some new aspects of col or vision in primates which have emerged from a series of experiments conducted over the past 8 years both on single ganglion cells in monkey retina and on the visually evoked cortical potential in man: corresponding psychophysical mechanisms of human perception will be considered as well. An attempt will be made to better understand the basic mechanisms of color vision using a more comprehensive approach which takes into account new mechanisms found in single cells and relates them to those found valid for the entire visual system. The processing of color signals was followed up from the retina to the visual cortex and to the percepq.tal centers, as far as the available techniques permitted.
Download or read book The Origin and Evolution of Mammals written by T. S. Kemp and published by Oxford University Press, USA. This book was released on 2005 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mammals are the dominant large animals of today, occurring in virtually every environment. This book is an account of the remarkable 320 million year long fossil record that documents their origin, their long spell as no more than small, nocturnal creatures, and their explosive radiation since the extinction of the dinosaurs 65 million years ago. Tom Kemp also unveils the exciting molecular evidence, which, coupled with important new fossils, is presently challenging current thinking on the interrelationships and historical biogeography of mammals. The Origin and Evolution of Mammals will be of interest to advanced undergraduate and graduate students as well as researchers in vertebrate palaeontology, biogeography, mammalian systematics and molecular taxonomy. It will also be welcomed by vertebrate fossil enthusiasts and evolutionary biologists of all levels with an interest in macroevolutionary problems.
Download or read book Visual Ecology written by Thomas W. Cronin and published by Princeton University Press. This book was released on 2014-08-10 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive treatment of visual ecology Visual ecology is the study of how animals use visual systems to meet their ecological needs, how these systems have evolved, and how they are specialized for particular visual tasks. Visual Ecology provides the first up-to-date synthesis of the field to appear in more than three decades. Featuring some 225 illustrations, including more than 140 in color, spread throughout the text, this comprehensive and accessible book begins by discussing the basic properties of light and the optical environment. It then looks at how photoreceptors intercept light and convert it to usable biological signals, how the pigments and cells of vision vary among animals, and how the properties of these components affect a given receptor's sensitivity to light. The book goes on to examine how eyes and photoreceptors become specialized for an array of visual tasks, such as navigation, evading prey, mate choice, and communication. A timely and much-needed resource for students and researchers alike, Visual Ecology also includes a glossary and a wealth of examples drawn from the full diversity of visual systems. The most up-to-date overview of visual ecology available Features some 225 illustrations, including more than 140 in color, spread throughout the text Guides readers from the basic physics of light to the role of visual systems in animal behavior Includes a glossary and a wealth of real-world examples
Download or read book Human Color Vision and Tetrachromacy written by Kimberly A. Jameson and published by Cambridge University Press. This book was released on 2020-06-25 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Human color perception is widely understood to be based on a neural coding system involving signals from three distinct classes of retinal photoreceptors. This retina processing model has long served as the mainstream scientific template for human color vision research and has also proven to be useful for the practical design of display technologies, user interfaces, and medical diagnosis tools that enlist human color perception behaviors. Recent findings in the area of retinal photopigment gene sequencing have provided important updates to our understanding of the molecular basis and genetic inheritance of individual variations of human color vision. This Element focuses on new knowledge about the linkages between color vision genetics and color perception variation and the color perception consequences of inheriting alternative, nonnormative, forms of genetic sequence variation.
Download or read book Zebra Stripes written by Timothy M. Caro and published by University of Chicago Press. This book was released on 2016-12-05 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: Why do zebras have stripes? Popular explanations range from camouflage to confusion of predators, social facilitation, and even temperature regulation. It is a challenge to test these proposals on large animals living in the wild, but using a combination of careful observations, simple field experiments, comparative information, and logic, Caro concludes that black-and-white stripes are an adaptation to thwart biting fly attack.
Download or read book Slatter s Fundamentals of Veterinary Ophthalmology written by David J Maggs and published by Elsevier Health Sciences. This book was released on 2013-05-28 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Practical, clinically focused coverage provides a one-stop diagnostic guide to ophthalmic disease in small and large animals including birds and exotic pets.Logical organization by anatomic region makes topics easy to locate.Nearly 1,000 color images present illustrated, step-by-step procedures that guide you through the recognition, diagnosis, and treatment of ocular conditions you are most likely to encounter.A team of three internationally respected veterinary ophthalmologists co-edit this reference to provide comprehensive, clinical expertise.Useful tables and charts summarize important facts and show treatment instructions at a glance."Clinical Tips" boxes offer helpful practice advice. NEW pharmaceutical therapies and procedural techniques provide the most current diagnostic and treatment methods.Extensive updates including the latest information on pharmacology, eyelid surgery, tear film deficiencies, and retinal disease help you provide the most current, effective care.NEW sections on ophthalmic diseases of chinchillas and guinea pigs provide expert guidance in the care of these increasingly popular exotic pets.NEW!" "Detailed table of contents describes the specifics of coverage in each chapter.NEW! Pageburst companion website makes the entire contents of the book fully searchable. "Sold separately. "
