The world according to zebrafish: How neural circuits generate behaviour PDF Download

Author: Gonzalo G. De Polavieja
Publisher: Frontiers E-books
ISBN: 2889193284
Category : Neurosciences. Biological psychiatry. Neuropsychiatry
Languages : en
Pages : 368

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Book Description
Understanding how the brain functions is one of the most ambitious current scientific goals. This challenge will only be accomplish by a multidisciplinary approach involving genetics, molecular biology, optics, ethology, neurobiology and mathematics and using tractable model systems. The zebrafish larva is a transparent genetically tractable small vertebrate, ideal for the combination state-of-the- art imaging techniques (e.g. two-photon scanning microscopy, single-plane illumination microscopy, spatial light modulator microscopy and lightfield microscopy), bioluminiscence and optogenetics to monitor and manipulate neuronal activity from single specific neurons up to the entire brain, in an intact behaving organism. Furthermore, the zebrafish model offers large and increasing collection of mutant and transgenic lines modelling human brain diseases. With these advantages in hand, the zebrafish larva became in the recent years, a novel animal model to study neuronal circuits and behaviour, taking us closer than ever before to understand how the brain controls behaviour.

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Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
Understanding how the brain functions is one of the most ambitious current scientific goals. This challenge will only be accomplish by a multidisciplinary approach involving genetics, molecular biology, optics, ethology, neurobiology and mathematics and using tractable model systems. The zebrafish larva is a transparent genetically tractable small vertebrate, ideal for the combination state-of-the- art imaging techniques (e.g. two-photon scanning microscopy, single-plane illumination microscopy, spatial light modulator microscopy and lightfield microscopy), bioluminiscence and optogenetics to monitor and manipulate neuronal activity from single specific neurons up to the entire brain, in an intact behaving organism. Furthermore, the zebrafish model offers large and increasing collection of mutant and transgenic lines modelling human brain diseases. With these advantages in hand, the zebrafish larva became in the recent years, a novel animal model to study neuronal circuits and behaviour, taking us closer than ever before to understand how the brain controls behaviour.

Author: Claire Sylvie Oldfield
Publisher:
ISBN:
Category :
Languages : en
Pages : 93

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Book Description
Experience influences how we perceive the world, how we interact with our environment, and how we develop. In fact, almost all animals can modify their behavior as a result of experience. Psychologists have long distinguished between different forms of learning and memory, and later determined that they are encoded in distinct brain areas. Neuroscientists dating back to Santiago Ramón y Cajal suggested that learning and memory might be encoded as changes in synaptic connections between neurons, but it wasn't until the second half of the 20th century that experimental evidence corroborated this idea. Specific firing patterns of neurons during learning results in strengthening or weakening of synapses, and morphological modifications that can lead to long lasting changes in neural circuits. The molecular mechanisms that drive these changes are remarkably conserved across vertebrates. However, understanding how synaptic plasticity is integrated at a network level remains a big challenge in neuroscience. Relatively few studies have focused on how neural circuits encode changes in behavior in a natural context. In this dissertation I present two such examples using calcium imaging and optogenetic techniques in larval zebrafish. First, in collaboration with others, I studied neural activity that drives the onset of the very first behavior of the fish, tail coiling. We characterized the transition of spontaneous activity in the spinal cord from a sporadic, uncorrelated state, to a regular and synchronized state. We determined that this transition occurred through coalescence of local microcircuits, and that inhibiting the early sporadic activity impaired normal development of the central pattern generator network. Second, I studied how experience of prey affects hunting behavior and underlying neural activity. I developed a paradigm to assess the effect of prior hunting on prey capture behavior and showed that experienced fish initiate more captures than their naïve counterparts. I next established that experience does not affect the ability of the fish to see prey. Rather, experience increases the probability that activity in visual areas will evoke a capture initiation. This is accomplished by increasing the impact of information transfer from visual to motor areas, possibly due to increased activity in forebrain areas for experienced fish.

Author:
Publisher: Academic Press
ISBN: 0128137444
Category : Science
Languages : en
Pages : 756

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Book Description
Handbook of Sleep Research, Volume 30, provides a comprehensive review of the current status of the neuroscience of sleep research. It begins with an overview of the neural, hormonal and genetic mechanisms of sleep and wake regulation before outlining the various proposed functions of sleep and the role it plays in plasticity, and in learning and memory. Finally, the book discusses disorders of sleep and waking, covering both lifestyle factors that cause disrupted sleep and psychiatric and neurological conditions that contribute to disorders. Emphasizes a comparative and multidisciplinary approach to the topic of sleep Covers the neurobiology and physiology of sleep stages, mechanisms of waking, and dreaming Discusses in detail the proposed functions of sleep, from health and rest, to memory consolidation and synaptic plasticity Examines the current state of research in mammalian and non-mammalian species, ranging from primates to invertebrates

Author: Derek Burton
Publisher: Oxford University Press
ISBN: 0191088439
Category : Science
Languages : en
Pages : 416

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Book Description
Essential Fish Biology provides an introductory overview of the functional biology of fish and how this may be affected by the widely contrasting habitat conditions within the aquatic environment. It describes the recent advances in comparative animal physiology which have greatly influenced our understanding of fish function as well as generating questions that have yet to be resolved. Fish taxa represent the largest number of vertebrates, with over 25,000 extant species. However, much of our knowledge, apart from taxonomy and habitat descriptions, has been based on relatively few of them , usually those which live in fresh water and/or are of commercial interest. Unfortunately there has also been a tendency to base our interpretation of fish physiology on that of mammalian systems, as well as to rely on a few type species of fish. This accessible textbook will redress the balance by using examples of fish from a wide range of species and habitats, emphasizing diversity as well as recognizing shared attributes with other vertebrates.

Author:
Publisher: Elsevier
ISBN: 0081006128
Category : Science
Languages : en
Pages : 8639

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Book Description
Comprehensive Toxicology, Third Edition, Fifteen Volume Set discusses chemical effects on biological systems, with a focus on understanding the mechanisms by which chemicals induce adverse health effects. Organized by organ system, this comprehensive reference work addresses the toxicological effects of chemicals on the immune system, the hematopoietic system, cardiovascular system, respiratory system, hepatic toxicology, renal toxicology, gastrointestinal toxicology, reproductive and endocrine toxicology, neuro and behavioral toxicology, developmental toxicology and carcinogenesis, also including critical sections that cover the general principles of toxicology, cellular and molecular toxicology, biotransformation and toxicology testing and evaluation. Each section is examined in state-of-the-art chapters written by domain experts, providing key information to support the investigations of researchers across the medical, veterinary, food, environment and chemical research industries, and national and international regulatory agencies. Thoroughly revised and expanded to 15 volumes that include the latest advances in research, and uniquely organized by organ system for ease of reference and diagnosis, this new edition is an essential reference for researchers of toxicology. Organized to cover both the fundamental principles of toxicology and unique aspects of major organ systems Thoroughly revised to include the latest advances in the toxicological effects of chemicals on the immune system Features additional coverage throughout and a new volume on toxicology of the hematopoietic system Presents in-depth, comprehensive coverage from an international author base of domain experts

Author:
Publisher: Elsevier
ISBN: 0444634266
Category : Science
Languages : en
Pages : 312

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Book Description
Progress in Brain Research is the most acclaimed and accomplished series in neuroscience, firmly established as an extensive documentation of the advances in contemporary brain research. The volumes, some of which are derived from important international symposia, contain authoritative reviews and original articles by invited specialists. The rigorous editing of the volumes assures that they will appeal to all laboratory and clinical brain research workers in the various disciplines: neuroanatomy, neurophysiology, neuropharmacology, neuroendocrinology, neuropathology, basic neurology, biological psychiatry, and the behavioral sciences. This volume, The Cerebellum and Memory Formation: Structure, Computation and Function, covers topics including feedback control of cerebellar learning; cortico-cerebellar organization and skill acquisition; cerebellar plasticity and learning in the oculomotor system, and more. Leading authors review the state-of-the-art in their field of investigation, and provide their views and perspectives for future research The volume reflects current thinking about the ways in which the cerebellum can engage in learning, and the contributors come from a variety of research fields The chapters express perspectives from different levels of analysis that range from molecular and cellular mechanisms through to long-range systems that allow the cerebellum to communicate with other brain areas

Author: Gordon M. Shepherd
Publisher: Oxford University Press
ISBN: 0190636114
Category : Medical
Languages : en
Pages : 625

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Book Description
In order to focus on principles, each chapter in this work is brief, organized around 1-3 wiring diagrams of the key circuits, with several pages of text that distil the functional significance of each microcircuit

Author: Allan V. Kalueff
Publisher: Humana Press
ISBN: 9781607619215
Category : Medical
Languages : en
Pages : 296

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Book Description
Animal models have traditionally played a crucial role in improving our understanding of brain pathogenesis. Zebrafish (Danio rerio) have generated considerable discoveries in the areas of genetics, embryology, endocrinology, and neuroscience. Zebrafish Models in Neurobehavioral Research emphasizes the growing importance of zebrafish in neurobehavioral research and portrays an extensive, thorough perspective on the emergence of zebrafish as robust and translational models. Written by leading international experts, the book covers major topics ranging from stress to learned recognition of environment, encompassing a wide spectrum of the utility of zebrafish within neurobiological disciplines. The chapters provide authoritative reviews of many zebrafish paradigms commonly used in the field today. This book will be a useful guide for zebrafish researchers, and will complement another related book from the popular Neuromethods series, Zebrafish Neurobehavioral Protocols. Comprehensive and up-to-date, Zebrafish Models in Neurobehavioral Research serves as an ideal resource for scientists new to the field as well as for established researchers seeking valuable insight into the growing utility of zebrafish in neuroscience.

Author: Arzu Çelik
Publisher: Springer
ISBN: 3319573632
Category : Medical
Languages : en
Pages : 517

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Book Description
This book offers representative examples from fly and mouse models to illustrate the ongoing success of the synergistic, state-of-the-art strategy, focusing on the ways it enhances our understanding of sensory processing. The authors focus on sensory systems (vision, olfaction), which are particularly powerful models for probing the development, connectivity, and function of neural circuits, to answer this question: How do individual nerve cells functionally cooperate to guide behavioral responses? Two genetically tractable species, mice and flies, together significantly further our understanding of these processes. Current efforts focus on integrating knowledge gained from three interrelated fields of research: (1) understanding how the fates of different cell types are specified during development, (2) revealing the synaptic connections between identified cell types (“connectomics”) using high-resolution three-dimensional circuit anatomy, and (3) causal testing of how iden tified circuit elements contribute to visual perception and behavior.