Download or read book Development of the Retinotectal Projection in the Chicken written by Günther Rager and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wilhelm His, one of the founders of developmental neurobiology, was convinced "that the processes of generation and development obey fundamental and simple laws and submit to the general laws of nature" (His 1901). Therefore, we should be able to find immediate conditions, dependencies and rules determining the de velopment of an organic form. With this in mind, His (1874) defined the task of embryology as follows: "Developmental biology is essentially a physiological science; it has not only to describe how each individual form develops from the egg, it has to derive this development in such a way that each developmental stage together with all its specialities appears as a necessary consequence of the immediately pre ceding stage . . . Only if developmental biology has given a perfect physiological deriva tion for any given form, has it the right to say that it has explained this individual form. " The ultimate aim of a physiological derivation would be that laws of growth valid for organic ,beings can be expressed as mathematical formulae (His 1874). To exemplify this, he formulated a universal and purely formal law of growth in mathematical terms making the comment: "I now suggest that the body form follows immediately from germinal growth and can be derived from the given germinal form according to the laws of growth. My interest is, therefore, firstly to detect the law of growth empirically and secondly to derive consecutive forms of the developing or ganism by applying this law.
Download or read book Development of the Retinotectal Projection in the Chicken written by Günter Rager and published by . This book was released on 2014-01-15 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of the Vertebrate Retina written by Barbara L. Finlay and published by Springer Science & Business Media. This book was released on 2013-03-08 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: The vertebrate retina has a form that is closely and clearly linked to its func tion. Though its fundamental cellular architecture is conserved across verte brates, the retinas of individual species show variations that are also of clear and direct functional utility. Its accessibility, readily identifiable neuronal types, and specialized neuronal connectivity and morphology have made it a model system for researchers interested in the general questions of the genet ic, molecular, and developmental control of cell type and shape. Thus, the questions asked of the retina span virtually every domain of neuroscientific inquiry-molecular, genetic, developmental, behavioral, and evolutionary. Nowhere have the interactions of these levels of analysis been more apparent and borne more fruit than in the last several years of study of the develop ment of the vertebrate retina. Fields of investigation have a natural evolution, rdoving through periods of initial excitement, of framing of questions and controversy, to periods of synthesis and restatement of questions. The study of the development of the vertebrate retina appeared to us to have reached such a point of synthesis. Descriptive questions of how neurons are generated and deployed, and ques tions of mechanism about the factors that control the retinal neuron's type and distribution and the conformation of its processes have been posed, and in good part answered. Moreover, the integration of cellular accounts of development with genetic, molecular, and whole-eye and behavioral accounts has begun.
Download or read book Self organizing Neural Maps The Retinotectal Map and Mechanisms of Neural Development written by John T. Schmidt and published by Academic Press. This book was released on 2019-10-15 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: Self-organizing Neural Maps: From Retina to Tectum describes the underlying processes that determine how retinal fibers self-organize into an orderly visual map. The formation of neural maps is a fundamental organizing concept in neurodevelopment that can shed light on developmental mechanisms and the functions of genes elsewhere. The book presents a summary of research in the retinotectal field with an ultimate goal of synthesizing how underlying mechanisms in neural development harmoniously come together to create life. A broad spectrum of neuroscientists and biomedical scientists with differing backgrounds and varied expertise will find this book useful. - Describes the mechanisms relating to the developmental wiring of the retinotectal system - Brings together the state-of-the-art research in axon guidance and neuronal activity mechanisms in map formation - Focuses on topographical maps and inclusion of multiple animal models, from fish to mammals - Explores the molecular guidance and activity dependent cue components involved in neurodevelopment
Download or read book Development of the Retinotectal Projection in the Chicken written by Günter H. Rager and published by Springer. This book was released on 1980 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Organizing Principles of Neural Development written by S. C. Sharma and published by Springer Science & Business Media. This book was released on 2013-03-13 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains summaries of most of the invited presentations at the NATO Advanced Study Institute "Organizing Principles of Neural Development", held in Povoa de Varzim, Portugal, from June 1-12, 1982. The meeting was intended to bring together a select group of investigators to present their views on problems in the field and to foster extensive discussions in smaller groups. It was hoped that such communications would pique curiousity and creativity among the students and thus help in formulating additional hypotheses regarding the type of interactions which might underlie neural development. Despite the wide range of material covered at this institute, a common theme seemed to emerge: at all stages of their develop mental history, the cells of the nervous system interact with previously generated cells (both neurons and non-neurons) as well as with other constituents of the developmental milieu. The pre sentations at this meeting helped in comprehending how a relatively "simple" series of sequential events might provide the necessary information needed to generate the diversity, characteristic of the adult nervous system, without hypothesizing on the existence of specific genes acting to control each step.
Download or read book The Development of Brain and Behaviour in the Chicken written by Lesley J. Rogers and published by Cabi. This book was released on 1995 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Development of brain and behaviour before hatching; Environmental influences on development of the embryo; Early learning after hatching; Brain development after hatching; Behavioural transitions in early posthatching life; Comparison with development in other species; Can a brain be domesticated?.
Download or read book Development of the Retinotectal Projection in the Chicken written by Günter H. Rager and published by Springer. This book was released on 1980 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cellular Communication During Ocular Development written by J. B. Sheffield and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: The eye has fascinated scientists from the earliest days of biological investigation. The diversity of its parts and the precision of their interac tion make it a favorite model system for a variety of developmental studies. The eye is a particularly valuable experimental system not only because its tissues provide examples of fundamental processes. but also because it is a prominent and easily accessible structure at very early embryonic ages. In order to provide an open forum for investigators working on all aspects of ocular development. a series of symposia on ocular and visual development was initiated in 1973. A major objective of the symposia has been to foster communication between the basic research worker and the clinical community. It is our feeling that much can be learned on both sides from this interaction. The idea for an informal meeting allowing maximum exchange of ideas originated with Dr. Leon Canbeub. who supplied the necessary driving force that made the series a reality. Each symposium has concentrated on a different aspect of ocular development. Speakers have been selected to approach related topics from different perspec tives.
Download or read book Current Catalog written by National Library of Medicine (U.S.) and published by . This book was released on with total page 1956 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vertebrate Eye Development written by M. Elizabeth Fini and published by Springer Science & Business Media. This book was released on 2012-09-07 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Who would believe that so small a space could contain the images of all the universe?" Leonardo da Vinci The last years of the 20th century have found the discipline of Developmental Biology returning to its original position at the forefront of biological re search. This progress can be attributed to the burgeoning knowledge base on molecules and gene families, and to the power of the molecular genetic ap proach. Topping the list of organ systems which have provided the most significant advances would have to be the eye. The vertebrate eye was one of the classic embryologic models, used to demonstrate many important prin ciples, including the concepts of inductive tissue interactions first put forth in the early 1900s. Within the last decade of this century, a return to some of the old questions with the new approaches has put eye development back into the limelight. I find this a highly appropriate topic for a book which aims to spark research for the new millennium. We begin with a chapter that discusses the anatomy of eye development, providing the basic reference information for the chapters that follow. A novel aspect of this introduction is the connection made between develop mental strategies and the eye's optical function. What also emerges from this chapter is the number of important eye structures that have barely been touched by the modern developmental biologist. Work on cornea and ante rior chamber development has lagged behind lens and retina.
Download or read book Development of the Central Nervous System in Vertebrates written by S.C. Sharma and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: ~he major theme of this book is the development of the vertebrate central nervous system. ~is volume contains summaries of most of the invited participants at the NA~ advanced study institute entitled "Development of central nervous system in vertebrates" held in Maratea, Italy, from June 23-July 5, 1991. In order to address this topic, we have drawn upon a selection of current studies dealing with molecular, cellular and system analysis which specifically pertain to the general principles of the development. ~he major aim of this institute was to bring together a select group of investigators who would present their views on the current issues in their respective fields and to foster extensive discussions amongst participants in smaller groups. Such interactions brought together the exchanges of ideas amongst participants and helped clarify the intricate details and formulate new vistas and collaborations. Since the study of nervous system development has focused mostly on the origin of neuron and glia cells, the area of current research was represented by talks on early cellular events including effects of growth factors, BOX and other gene expressions and cell lineage of specific cell type(s). Formation of specific cell types and the specific neuronal connections have been a major theme in the study of the nervous system development. Recent technical advances has resulted in new information at both cellular and molecular levels which have provided new details. Current research was represented by "selective" topics discussed at the meeting.
Download or read book Current Topics in Developmental Biology written by and published by Academic Press. This book was released on 1994-11-07 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current Topics in Developmental Biology, Volume 29 surveys the major issues at the forefront of developmental biology. This volume, like others in the serial, is valuable to researchers in the fields of animal and plant development, and to students and other professionals who want an introduction to current topics in cellular and molecular approaches to developmental biology. Volume 29s chapters on the nervous system, reproductive system, and flowering introduce new models and concepts for understanding these processes.Essential reading for anyone interested in: - Development of the nervous system - Development of the reproductive system - Flowering in plants - Roles of homeobox-related transcription factors, and growth factors in axis and organ development
Download or read book Development of Auditory and Vestibular Systems 3 Molecular Development of the Inner Ear written by Raymond Romand and published by Elsevier. This book was released on 2003-12-15 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thanks to advances in genetics and genomics, research on inner ear development has flourished. Better approaches and experimental models have shed light on the function of a variety of vertebrate genes and their related proteins. This latest volume of Current Topics in Developmental Biology delves into this new research to show how the discovery of more genes involved in the development of the inner ear leads to the generation of new models that examine a wealth of issues -- from the origins of human deafness to the roles of genes during inner ear induction, development and differentiation. The wide variety of experimental approaches will help readers to understand the broad range of issues related to inner ear morphogenesis and other concepts from complementary areas of investigation. This state-of-the-art overview will be essential reading for researchers, clinicians and students alike.* Scores of high-quality, full- color figures* Detailed schemes on the structure and timing of ear development* Current Topics in Developmental Biology is the longest-running forum for contemporary issues in developmental biology
Download or read book Visual Neuroscience written by J. D. Pettigrew and published by CUP Archive. This book was released on 1986-12-18 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Visual neuroscience is the study of the way in which the -brain accomplishes sight, and this book presents overviews of a range of topics in this area. The chapters are grouped into six sections - retina, retino-geniculate connections, visual development, comparative visual physiology, visual cortex and integrative aspects - and the authors describe both their own contributions to the field, and the influence of their teacher, P.O. Bishop, on their scientific development.
Download or read book International Review of Cytology written by Kwang W. Jeon and published by Gulf Professional Publishing. This book was released on 2005-08-18 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: International Review of Cytology presents current advances and comprehensive reviews in cell biology - both plant and animal. Authored by some of the foremost scientists in the field, each volume provides up-to-date information and directions for future research. Articles in this volume address Calpain proteases in cell adhesion and motility; Transforming growth factor beta (TGF-b) and programmed cell death in the vertebrate retina; Molecular Mechanism of Apoptosis Induced by Mechanical Forces; Cellular functions of ER chaperones Calreticulin, calnexin, and Erp57; Plasticity of nonapeptidergic neurosecretory cells in connection with the discovery of neurosecretion; Interactions between virus proteins and host cell membranes during viral life cycle; Nerve ending "signal" proteins GAP-43, MARCKS and BASP1.
Download or read book Systems Approaches to Developmental Neurobiology written by Pamela A. Raymond and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is appropriate at the outset of this book to pose a question that was often asked --of the organizers before the meeting took place and later among those who participated in the meeting -- "What is meant by 'Systems Approaches' in the study of developmental neurobiology?" The answer, as we originally conceived it, can be succinctly summarized by the word "interactions". That brief epithet was expanded during the general discussion portion of the meeting, where the following definition was offered: "Systems approaches in developmental neurobiology are unified by attention to the emergent properties of the developing system under investigation and by a focus on the aspects of development of the nervous system that depend on interactions among its various elements, be they molecular, intracellular or multicellular. " As opposed to ignoring complexity or trying to wish it away, those of us who utilize a systems approach embrace the principle that complexity is what makes the nervous system special. We have come to recognize that wherever we look, we find interactions which are to be probed and eventually. understood. Even the so-called "simple systems", a term that has been used to describe many invertebrate preparations, are embraced under the above definition, since with further study it is becoming increasing clear that such systems are not as simple as once thought. We also include molecular genetics under the systems rubric. After all, genes regulate other genes which regulate others, and so it goes.
