Advances In Photoreception

Author : National Research Council,Division of Behavioral and Social Sciences and Education,Commission on Behavioral and Social Sciences and Education,Committee on Vision
Publisher : National Academies Press
Page : 157 pages
File Size : 50,9 Mb
Release : 1990-02-01
Category : Medical
ISBN : 9780309042406

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Advances in Photoreception by National Research Council,Division of Behavioral and Social Sciences and Education,Commission on Behavioral and Social Sciences and Education,Committee on Vision Pdf

One of a continuing series on Frontiers of Visual Science, this short volume contains papers presented at a recent symposium. These papers describe techniques for assessing the structure and function of photoreception, both in isolation and in aggregation as the "receptor mosaic" of the retina. Also described are dynamic and spatial sampling properties of photoreceptors, with an emphasis on techniques of measurement and associated models of retinal function. This volume should be of interest to basic vision scientists, clinical ophthalmologists, workers in human factors, and computer scientists curious about the visual apparatus of biological systems.

Author : David S. Williams
Publisher : World Scientific
Page : 460 pages
File Size : 45,8 Mb
Release : 2004
Category : Medical
ISBN : 9812561757

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Photoreceptor Cell Biology and Inherited Retinal Degenerations by David S. Williams Pdf

This important book presents review articles on the cell biology of photoreceptor and RPE cells, as well as the relationship between this cell biology and inherited photoreceptor degeneration. The chapters have been written by leaders in the field. The vision scientist will see this book as a review of photoreceptor and RPE cell biology, and known molecular bases of many forms of retinitis pigmentosa and related retinal degeneration.

Author : Robert E. Anderson,Matthew M. LaVail,Joe G. Hollyfield
Publisher : Springer Science & Business Media
Page : 424 pages
File Size : 55,9 Mb
Release : 2007-12-03
Category : Medical
ISBN : 9780387749044

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Recent Advances In Retinal Degeneration by Robert E. Anderson,Matthew M. LaVail,Joe G. Hollyfield Pdf

The product of perhaps the most important research meeting in the field, this essential text outlines all the latest research in retinal degeneration. Culled from the proceedings of the International Symposium on the subject, the topics in this volume explore the etiology, cellular mechanisms, epidemiology, models and potential therapeutic measures for the blinding diseases of retinitis pigmentosa and age-related macular degeneration. A must-read for researchers in the field.

Author : M. A. Ali
Publisher : Springer
Page : 880 pages
File Size : 41,9 Mb
Release : 1984-03-31
Category : Science
ISBN : UCSD:31822000478727

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Photoreception and Vision in Invertebrates by M. A. Ali Pdf

I see a man's life is a tedious one. Cymbeline, Act III, Sc. 6. It is well known that the best way to learn a subject is to teach it! Along the same lines one might also say that a pleasant way of learning a subject and at the same time getting to know quite a few of the workers active in it, is to arrange and to attend an Advanced Study Institute (ASI) or a workshop lasting about two weeks. This was and is the wisdom behind the NA TO-ASI programme and much as people fear that a fortnight may be too long, before it is over everyone feels that it was too short, especially if the weather had cooperated. Organising this ASI which resulted in this volume has been a very good learning experience. I started my career in research with invertebrates and retained an interest in them over the years due to my teaching a course and working sporadically on various aspects of photoreception in Polychaetes, Crustaceans and Insects. Thus, the thought of organising an ASI on photoreception and vision in invertebrates had been brewing in my mind for the past half a dozen years or so. It was felt that it will be desirable to do a bit of stock taking and discuss possible new approaches to the study of this matter.

Author : Helga Kolb,Eduardo Fernandez,Ralph Nelson
Publisher : Unknown
Page : 128 pages
File Size : 54,5 Mb
Release : 2007
Category : Electronic
ISBN : OCLC:503519994

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Webvision by Helga Kolb,Eduardo Fernandez,Ralph Nelson Pdf

Author : Paul A. Hargrave
Publisher : Academic Press
Page : 422 pages
File Size : 52,6 Mb
Release : 2013-10-22
Category : Science
ISBN : 9781483217543

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Photoreceptor Cells by Paul A. Hargrave Pdf

Photoreceptor Cells, Volume 15 covers the advances in the study of photoreceptor cells. The book discusses biochemical, cell and structural biological, and molecular biological techniques needed for the study of photoreceptor cells. The text also describes the methods for observing the structure of photoreceptor cells and for studying their metabolism. The procedures for photoreceptor cell isolation are also considered. The book further tackles the preparation of proteins involved in rod cell metabolism, with particular emphasis on proteins of the visual transduction cascade. The text also encompasses the application of molecular biological techniques for the examination of molecular components of the visual system and their structure, distribution, and function. Neuroscientists, ophthalmologists, biochemists, and people involved in the study of photoreceptor cells will find the book invaluable.

Author : Takahisa Furukawa,James B. Hurley,Satoru Kawamura
Publisher : Springer
Page : 0 pages
File Size : 50,6 Mb
Release : 2016-08-23
Category : Medical
ISBN : 4431563350

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Vertebrate Photoreceptors by Takahisa Furukawa,James B. Hurley,Satoru Kawamura Pdf

This book provides a series of comprehensive views on various important aspects of vertebrate photoreceptors. The vertebrate retina is a tissue that provides unique experimental advantages to neuroscientists. Photoreceptor neurons are abundant in this tissue and they are readily identifiable and easily isolated. These features make them an outstanding model for studying neuronal mechanisms of signal transduction, adaptation, synaptic transmission, development, differentiation, diseases and regeneration. Thanks to recent advances in genetic analysis, it also is possible to link biochemical and physiological investigations to understand the molecular mechanisms of vertebrate photoreceptors within a functioning retina in a living animal. Photoreceptors are the most deeply studied sensory receptor cells, but readers will find that many important questions remain. We still do not know how photoreceptors, visual pigments and their signaling pathways evolved, how they were generated and how they are maintained. This book will make clear what is known and what is not known. The chapters are selected from fields of studies that have contributed to a broad understanding of the birth, development, structure, function and death of photoreceptor neurons. The underlying common word in all of the chapters that is used to describe these mechanisms is “molecule”. Only with this word can we understand how these highly specific neurons function and survive. It is challenging for even the foremost researchers to cover all aspects of the subject. Understanding photoreceptors from several different points of view that share a molecular perspective will provide readers with a useful interdisciplinary perspective.

Author : Anonim
Publisher : Unknown
Page : 423 pages
File Size : 44,6 Mb
Release : 2008-01-01
Category : Retinal degeneration
ISBN : 0387740406

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Recent Advances in Retinal Degeneration by Anonim Pdf

This book is the result of The International Symposium on Retinal Degeneration which has become perhaps the most important research meeting in the field. The topics in this volume explore the etiology, cellular mechanisms, epidemiology, generics, models and potential therapeutic measures for the blinding diseases of retinitis pigmentosa and age-related macular degeneration. Special focus is highlighted in the areas of Mechanisms of Photoreceptor Degeneration and Cell Death (extremely important because very little is known how or why photoreceptors die in these diseases, despite an abundance of genetic information), Age-Related Macular Degeneration (with several novel approaches to its analysis), Usher Syndrome (the most severe form of retinitis pigmentosa, which includes an early of congenital loss of hearing along with blindness), and Gene Therapy. In addition, the section on Basic Science Related to Retinal Degeneration is particularly strong with several laboratories repor.

Author : Francesco Lenci,Giuliano Colombetti
Publisher : Springer
Page : 440 pages
File Size : 45,7 Mb
Release : 1980-06
Category : Juvenile Nonfiction
ISBN : UCAL:B4455850

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Photoreception and Sensory Transduction in Aneural Organisms by Francesco Lenci,Giuliano Colombetti Pdf

This book collects all the lectures presented during the NATO Advanced Study Institute on "Photoreception and Sensory Transduction in Aneura1 Organisms," held in Villa Le Pianore (Versi1ia, Italy), September 3-14, 1979. In order to publish the lectures in the shortest possible time, we had to make the decision not to include the free communications, the informal seminars, and the panel discussions, notwithstanding their very high scientific level and interest. Only the final panel discussion has been summarized by Prof. W. Haupt (whose effort we gratefully acknowledge), because it gives a comprehensive view of the state of the art in this field. The ASI was intended to be a high-level course, characterized by an interdisciplinary approach to the problem of photoreception and photosensory physiology in aneural organisms, bringing together scientists from different fields and specializations. We hope that these characteristics are reflected in the content of the book, which is meant to be both an advanced textbook for researchers and students entering the field and a critical overview of the problems of photosensory transduction in aneura1 organisms. The topics pre sented range from a phenomenological description of the different photomotile responses in various microorganisms to a discussion of the molecular processes involved in the primary events of photo reception as well as in the subsequent steps of the transduction chain.

Author : A.W. Snyder,R. Menzel
Publisher : Springer Science & Business Media
Page : 523 pages
File Size : 42,5 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783642809347

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Photoreceptor Optics by A.W. Snyder,R. Menzel Pdf

The above consideration indicates that at present many of the experi mental facts on PS in animals can be quantitatively explained within the limits of the "universal" photoreceptor membrane concept. Of course, existence of preferential orientation of the absorbing dipoles in the tubuli of the rhabdomeres can not be totally rejected. We hope that the concept of the "universal" photoreceptor membrane may serve as the useful instrument when dealing with newly discovered properties of visual cells so that true mechanisms of electrical and optical coupling will be searched for instead of assumptions being made on additional properties of the photoreceptor membrane in every new animal under study. 5. Absorption Spectrum of the Universal Photoreceptor Membrane and Spectral Sensitivity of the Photoreceptor 5. 1 Preliminary Notes It seems nearly self-evident that the absorption spectrum of the pho toreceptor membrane coincides exactly with that of the visual pigment it contains. Hence, the membrane must exhibit three bands of absorp tion - the principal band with its peak within the limits of visible spectrum (or a-peak); the secondary band between 340 and 380 nm (S peak); and the third, protein band, in the ultraviolet (UV) at 280 nm (COLLINS et al. , 1952). The main peak of absorption is located within the range 433-575 nm for retinol-based pigments and between 438 and 620 nm for 3-dehydroretinol-based pigments, the position of Amax de pending on many ecological factors.

Author : Cloe Taddei-ferretti
Publisher : World Scientific
Page : 442 pages
File Size : 40,9 Mb
Release : 1998-01-15
Category : Electronic
ISBN : 9789814545754

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Biophysics Of Photoreception: Molecular And Phototransductive Events by Cloe Taddei-ferretti Pdf

This is the first volume of new book series on biophysics and biocybernetics, initiated by the Istituto Italiano per gli Studi Filosofici.A main problem in biophysics is the interaction of light information with functional living structures, in order to shape the organism's behaviour. Although the processes of photoreception and phototransduction are articulated in various ways in different living beings — as it is seen in the subdivision of the topics in this volume on microorganisms, invertebrates, and vertebrates — general ways of light signal reception and transduction through light energy, i.e., photosensitive molecule interactions, could be observed. Highly sophisticated advanced techniques are employed in this research field.

Author : National Library of Medicine (U.S.)
Publisher : Unknown
Page : 1028 pages
File Size : 40,6 Mb
Release : 2024-06-09
Category : Medicine
ISBN : STANFORD:36105214548989

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National Library of Medicine Current Catalog by National Library of Medicine (U.S.) Pdf

Author : Wolfgang Baehr,Krzysztof Palczewski
Publisher : Springer Science & Business Media
Page : 658 pages
File Size : 41,6 Mb
Release : 2003-01-31
Category : Medical
ISBN : 0306474158

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Photoreceptors and Calcium by Wolfgang Baehr,Krzysztof Palczewski Pdf

Text reviews the understanding of the role of calcium in phototransduction, dark-and light-adaptation, recovery from bleaching and return from the dark state, and synaptic signaling of photoreceptors and their second-order neurons. Includes color plates.

Author : Josef F. Bille
Publisher : Springer
Page : 407 pages
File Size : 43,6 Mb
Release : 2019-08-13
Category : Medical
ISBN : 9783030166380

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High Resolution Imaging in Microscopy and Ophthalmology by Josef F. Bille Pdf

This open access book provides a comprehensive overview of the application of the newest laser and microscope/ophthalmoscope technology in the field of high resolution imaging in microscopy and ophthalmology. Starting by describing High-Resolution 3D Light Microscopy with STED and RESOLFT, the book goes on to cover retinal and anterior segment imaging and image-guided treatment and also discusses the development of adaptive optics in vision science and ophthalmology. Using an interdisciplinary approach, the reader will learn about the latest developments and most up to date technology in the field and how these translate to a medical setting. High Resolution Imaging in Microscopy and Ophthalmology – New Frontiers in Biomedical Optics has been written by leading experts in the field and offers insights on engineering, biology, and medicine, thus being a valuable addition for scientists, engineers, and clinicians with technical and medical interest who would like to understand the equipment, the applications and the medical/biological background. Lastly, this book is dedicated to the memory of Dr. Gerhard Zinser, co-founder of Heidelberg Engineering GmbH, a scientist, a husband, a brother, a colleague, and a friend.

Author : Michael S. Landy,Laurence T. Maloney,Misha Pavel
Publisher : Springer Science & Business Media
Page : 351 pages
File Size : 41,7 Mb
Release : 2012-12-06
Category : Computers
ISBN : 9781461239840

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Exploratory Vision by Michael S. Landy,Laurence T. Maloney,Misha Pavel Pdf

Advances in sensing, signal processing, and computer technology during the past half century have stimulated numerous attempts to design general-purpose ma chines that see. These attempts have met with at best modest success and more typically outright failure. The difficulties encountered in building working com puter vision systems based on state-of-the-art techniques came as a surprise. Perhaps the most frustrating aspect of the problem is that machine vision sys tems cannot deal with numerous visual tasks that humans perform rapidly and effortlessly. In reaction to this perceived discrepancy in performance, various researchers (notably Marr, 1982) suggested that the design of machine-vision systems should be based on principles drawn from the study of biological systems. This "neuro morphic" or "anthropomorphic" approach has proven fruitful: the use of pyramid (multiresolution) image representation methods in image compression is one ex ample of a successful application based on principles primarily derived from the study of biological vision systems. It is still the case, however, that the perfor of computer vision systems falls far short of that of the natural systems mance they are intended to mimic, suggesting that it is time to look even more closely at the remaining differences between artificial and biological vision systems.