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Photoreception And Vision In Invertebrates
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Book Synopsis Photoreception and Vision in Invertebrates by : M. A. Ali
Download or read book Photoreception and Vision in Invertebrates written by M. A. Ali and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Vertebrate Photoreceptors by : Takahisa Furukawa
Download or read book Vertebrate Photoreceptors written by Takahisa Furukawa and published by Springer. This book was released on 2016-08-23 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Invertebrate Photoreceptors by : Jerome J. Wolken
Download or read book Invertebrate Photoreceptors written by Jerome J. Wolken and published by Academic Press. This book was released on 2013-10-22 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Invertebrate Photoreceptors: A Comparative Analysis covers the structure and pigment chemistry of invertebrate photoreceptors. The book discusses the photobehavior and photoreceptor systems of invertebrate animals; the protozoan photoreceptor; and the compound eye. The text also describes the crustacean and mollusc eyes; the vertebrate retinal photoreceptors; and the invertebrate eye and its visual pigments. The book concludes with discussions on primitive photoreceptors; spectral sensitivity, pigments, and color vision; and polarized light analysis. Biologists and people involved in the study of invertebrate photobiology will find the text invaluable.
Book Synopsis Photoreception and Vision in Invertebrates by : M. A. Ali
Download or read book Photoreception and Vision in Invertebrates written by M. A. Ali and published by Springer. This book was released on 1984-03-31 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis The Crustacean Nervous System by : Konrad Wiese
Download or read book The Crustacean Nervous System written by Konrad Wiese and published by Springer Science & Business Media. This book was released on 2002 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique selection of reviews summarizes current knowledge in all major fields of crustacean neurobiology and all levels of their CNS organization, using lobster and crayfish. It not only imparts theoretical knowledge but also describes all available contemporary and advanced techniques, such as patch clamp recordings, microelectrode techniques, immunocytochemistry, and all methods of molecular genetics to identify cellular pathways of protein synthesis and peptidergic control. In summary, it is a comprehensive account of the research achievements in one of the major nervous systems besides the mammalian CNS.
Book Synopsis Evolution's Witness by : Ivan R. Schwab
Download or read book Evolution's Witness written by Ivan R. Schwab and published by Oxford University Press. This book was released on 2012-01-05 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The evolution of the eye spans 3.75 billion years from single cell organisms with eyespots to Metazoa with superb camera style eyes. At least ten different ocular models have evolved independently into myriad optical and physiological masterpieces. The story of the eye reveals evolution's greatest triumph and sweetest gift. This book describes its journey"--Provided by publisher.
Book Synopsis Functional Neuroanatomy by : N. J. Strausfeld
Download or read book Functional Neuroanatomy written by N. J. Strausfeld and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: The "functional" in the title of this book not only reflects my personal bias about neuroanatomy in brain research, it is also the gist of many chapters which describe sophisticated ways to resolve structures and interpret them as dynamic entities. Examples are: the visualization of functionally identified brain areas or neurons by activity staining or intracellular dye-iontophoresis; the resolution of synaptic connections between physiologically identified nerve cells; and the biochemical identification of specific neurons (their peptides and transmitters) by histo- and immunocytochemistry. I personally view the nervous system as an organ whose parts, continuously exchanging messages, arrive at their decisions by the cooperative phenome non of consensus and debate. This view is, admittedly, based on my own ex perience of looking at myriads of nerve cells and their connections rather than studying animal behaviour or theorizing. Numerous structural studies have demonstrated that interneurons in the brain must receive hundreds of thousands of synapses. Many neurons receive inputs from several different sensory areas: each input conveys a message about the external world and possibly also about past events which are stored within the central nervous system. Whether an interneuron responds to a certain combination of inputs may be, literally, a matter of debate whose outcome is decided at the post synaptic membrane. A nerve cell responding to an overriding command is possibly a rare event.
Download or read book Animal Eyes written by Michael F. Land and published by Oxford University Press. This book was released on 2012-03 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the way that all known types of eyes work, from their optics to the behaviour they guide. The ways that eyes sample the world in space and time are considered, and the evolutionary origins of eyes are discussed. This new edition incorporates discoveries made since the first edition published in 2001.
Book Synopsis The Oxford Handbook of Invertebrate Neurobiology by : John H. Byrne
Download or read book The Oxford Handbook of Invertebrate Neurobiology written by John H. Byrne and published by Oxford University Press. This book was released on 2019-01-29 with total page 1304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Invertebrates have proven to be extremely useful model systems for gaining insights into the neural and molecular mechanisms of sensory processing, motor control and higher functions such as feeding behavior, learning and memory, navigation, and social behavior. A major factor in their enormous contributions to neuroscience is the relative simplicity of invertebrate nervous systems. In addition, some invertebrates, primarily the molluscs, have large cells, which allow analyses to take place at the level of individually identified neurons. Individual neurons can be surgically removed and assayed for expression of membrane channels, levels of second messengers, protein phosphorylation, and RNA and protein synthesis. Moreover, peptides and nucleotides can be injected into individual neurons. Other invertebrate model systems such as Drosophila and Caenorhabditis elegans offer tremendous advantages for obtaining insights into the neuronal bases of behavior through the application of genetic approaches. The Oxford Handbook of Invertebrate Neurobiology reviews the many neurobiological principles that have emerged from invertebrate analyses, such as motor pattern generation, mechanisms of synaptic transmission, and learning and memory. It also covers general features of the neurobiology of invertebrate circadian rhythms, development, and regeneration and reproduction. Some neurobiological phenomena are species-specific and diverse, especially in the domain of the neuronal control of locomotion and camouflage. Thus, separate chapters are provided on the control of swimming in annelids, crustaea and molluscs, locomotion in hexapods, and camouflage in cephalopods. Unique features of the handbook include chapters that review social behavior and intentionality in invertebrates. A chapter is devoted to summarizing past contributions of invertebrates to the understanding of nervous systems and identifying areas for future studies that will continue to advance that understanding.
Book Synopsis Comparative Physiology and Evolution of Vision in Invertebrates by : Hansjochem Autrum
Download or read book Comparative Physiology and Evolution of Vision in Invertebrates written by Hansjochem Autrum and published by Springer. This book was released on 1979 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Polarized Light in Animal Vision by : Gábor Horváth
Download or read book Polarized Light in Animal Vision written by Gábor Horváth and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: The subject of this volume is two-fold. First, it gathers typical polarization patterns occurring in nature. Second, it surveys the polarization-sensitive ani mals, the physiological mechanisms and biological functions of polarization sensitivity as weIl as the polarization-guided behaviour in animals. The monograph is prepared for biologists, physicists and meteorologists, espe cially for experts of atmospheric optics and animal vision, who wish to under stand and reveal the message hidden in polarization patterns of the optical environment not directly accessible to the human visual system, but measur able by polarimetry and perceived by many animals. Our volume is an attempt to build a bridge between these two physical and biological flelds. In Part I we introduce the reader to the elements of imaging polarimetry. This technique can be efflciently used, e. g. in atmospheric optics, remote sens ing and biology. In Part 11 we deal with typical polarization patterns of the natural optical environment. Sunrise/sunset, clear skies, cloudy skies, moonshine and total solar eclipses all mean quite different illumination conditions, wh ich also affect the spatial distribution and strength of celestial polarization. We pre sent the polarization patterns of the sky and its unpolarized (neutral) points under sunlit, moonlit, clear, cloudy and eclipsed conditions as a function of solar elevation. The polarization pattern of a rainbow is also shown. That part of the spectrum is derived in which perception of skylight polarization is optimal under partly cloudy skies.
Book Synopsis Invertebrate Vision by : Eric Warrant
Download or read book Invertebrate Vision written by Eric Warrant and published by Cambridge University Press. This book was released on 2006-10-05 with total page 527 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publisher description
Book Synopsis Behavioral Genetics of the Fly (Drosophila Melanogaster) by : Josh Dubnau
Download or read book Behavioral Genetics of the Fly (Drosophila Melanogaster) written by Josh Dubnau and published by Cambridge University Press. This book was released on 2014-06-26 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive portrayal of the behaviour genetics of the fruit fly (Drosophila melanogaster) and the methods used in these studies.
Book Synopsis Comparative Physiology and Evolution of Vision in Invertebrates by : H. Autrum
Download or read book Comparative Physiology and Evolution of Vision in Invertebrates written by H. Autrum and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the comparative physiology of photoreception by the Protista and the invertebrates two aspects are emphasized: (1) the diversity of visual processes in these groups and (2) their bearing upon general mechanisms of photoreception. Invertebrates have evolved a far greater variety of adaptations than vertebrates modifications aiding survival in the remarkably different biotopes they occupy. The number of species in itself suggests this multiformity; each of them has peculiarities of its own, in morphology as well as in physiology and behavior. But these special adaptations are variations on a few great themes. Although the catalogue of invertebrate species is immense, the literature concerning them nearly rivals it in extent-even if one considers only that fraction dealing with visual physiology. Taxonomy proceeds by grouping the species, categorizing them in genera, families, orders, and progressively larger units. Similarly, comparative physiology aims at an analogous, more or less compre hensive, classification. This Part A of Volume VII/6, like Part B that follows it, emphasizes the broad questions that concern groups larger than the individual species; in some cases these questions have general applicability. The middle course between approaches that are too specialized and those that are too general is often elusive, but here we attempt to follow it. The vast number of special adaptations-probably, as we have said, as large as the number of species-is beyond the range even of a handbook.
Book Synopsis Adaptive Mechanisms in the Ecology of Vision by : S. Archer
Download or read book Adaptive Mechanisms in the Ecology of Vision written by S. Archer and published by Springer Science & Business Media. This book was released on 1999-01-31 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of the ecology of vision has grown considerably since John Lythgoe first wrote his original book on the subject in 1979. John Lythgoe was instrumental in founding the subject that has inspired vision researchers to relate the functioning of the visual system with the visual requirements demanded by the environment and behaviour of the animal in it. This book represents a timely and much needed review of the wealth of research that has been carried out in the last twenty years. It deals with theoretical and physical considerations of light and photoreception, practical examples of visual system structure and function and aspects of visual behaviour and communication. Importantly, the book emphasises one of the main themes to have emerged from studies of the ecology of vision: that the visual system is extremely adaptable when confronted with changing environmental and behavioural conditions. Finally, this updated review is a multi-author collection of leading experts currently working in the field of visual ecology, a requirement that reflects the high level of current research activity. The book approaches the visual system from many different areas of biology including neurobiology, sensory biology, cellular biology and behavioural biology. Consequently, the book will be of interest to workers both within and outside the field of vision research and also to undergraduate and graduate students interested in vision.
Book Synopsis Cephalopod Cognition by : Anne-Sophie Darmaillacq
Download or read book Cephalopod Cognition written by Anne-Sophie Darmaillacq and published by Cambridge University Press. This book was released on 2014-07-10 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focusing on comparative cognition in cephalopods, this book illuminates the wide range of mental function in this often overlooked group.
Book Synopsis Photoreceptor Optics by : A.W. Snyder
Download or read book Photoreceptor Optics written by A.W. Snyder and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 523 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
