Retinal Computation

Retinal Computation PDF Author: Greg Schwartz
Publisher: Academic Press
ISBN: 0128231777
Category : Medical
Languages : en
Pages : 342

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Book Description
Retinal Computation summarizes current progress in defining the computations performed by the retina, also including the synaptic and circuit mechanisms by which they are implemented. Each chapter focuses on a single retinal computation that includes the definition of the computation and its neuroethological purpose, along with the available information on its known and unknown neuronal mechanisms. All chapters contain end-of-chapter questions associated with a landmark paper, as well as programming exercises. This book is written for advanced graduate students, researchers and ophthalmologists interested in vision science or computational neuroscience of sensory systems. While the typical textbook's description of the retina is akin to a biological video camera, the real retina is actually the world's most complex image processing machine. As part of the central nervous system, the retina converts patterns of light at the input into a rich palette of representations at the output. The parallel streams of information in the optic nerve encode features like color, contrast, orientation of edges, and direction of motion. Image processing in the retina is undeniably complex, but as one of the most accessible parts of the central nervous system, the tools to study retinal circuits with unprecedented precision are up to the task. This book provides a practical guide and resource about the current state of the field of retinal computation. - Provides a practical guide on the field of retinal computation - Summarizes and clearly explains important topics such as luminance, contrast, spatial features, motion and other computations - Contains discussion questions, a landmark paper, and programming exercises within each chapter

Retinal Computation

Retinal Computation PDF Author: Greg Schwartz
Publisher: Academic Press
ISBN: 0128231777
Category : Medical
Languages : en
Pages : 342

Get Book Here

Book Description
Retinal Computation summarizes current progress in defining the computations performed by the retina, also including the synaptic and circuit mechanisms by which they are implemented. Each chapter focuses on a single retinal computation that includes the definition of the computation and its neuroethological purpose, along with the available information on its known and unknown neuronal mechanisms. All chapters contain end-of-chapter questions associated with a landmark paper, as well as programming exercises. This book is written for advanced graduate students, researchers and ophthalmologists interested in vision science or computational neuroscience of sensory systems. While the typical textbook's description of the retina is akin to a biological video camera, the real retina is actually the world's most complex image processing machine. As part of the central nervous system, the retina converts patterns of light at the input into a rich palette of representations at the output. The parallel streams of information in the optic nerve encode features like color, contrast, orientation of edges, and direction of motion. Image processing in the retina is undeniably complex, but as one of the most accessible parts of the central nervous system, the tools to study retinal circuits with unprecedented precision are up to the task. This book provides a practical guide and resource about the current state of the field of retinal computation. - Provides a practical guide on the field of retinal computation - Summarizes and clearly explains important topics such as luminance, contrast, spatial features, motion and other computations - Contains discussion questions, a landmark paper, and programming exercises within each chapter

Computational Retinal Image Analysis

Computational Retinal Image Analysis PDF Author: Emanuele Trucco
Publisher: Academic Press
ISBN: 0081028172
Category : Computers
Languages : en
Pages : 506

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Book Description
Computational Retinal Image Analysis: Tools, Applications and Perspectives gives an overview of contemporary retinal image analysis (RIA) in the context of healthcare informatics and artificial intelligence. Specifically, it provides a history of the field, the clinical motivation for RIA, technical foundations (image acquisition modalities, instruments), computational techniques for essential operations, lesion detection (e.g. optic disc in glaucoma, microaneurysms in diabetes) and validation, as well as insights into current investigations drawing from artificial intelligence and big data. This comprehensive reference is ideal for researchers and graduate students in retinal image analysis, computational ophthalmology, artificial intelligence, biomedical engineering, health informatics, and more. - Provides a unique, well-structured and integrated overview of retinal image analysis - Gives insights into future areas, such as large-scale screening programs, precision medicine, and computer-assisted eye care - Includes plans and aspirations of companies and professional bodies

The Computing Dendrite

The Computing Dendrite PDF Author: Hermann Cuntz
Publisher: Springer Science & Business Media
ISBN: 1461480949
Category : Medical
Languages : en
Pages : 519

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Book Description
Neuronal dendritic trees are complex structures that endow the cell with powerful computing capabilities and allow for high neural interconnectivity. Studying the function of dendritic structures has a long tradition in theoretical neuroscience, starting with the pioneering work by Wilfrid Rall in the 1950s. Recent advances in experimental techniques allow us to study dendrites with a new perspective and in greater detail. The goal of this volume is to provide a résumé of the state-of-the-art in experimental, computational, and mathematical investigations into the functions of dendrites in a variety of neural systems. The book first looks at morphological properties of dendrites and summarizes the approaches to measure dendrite morphology quantitatively and to actually generate synthetic dendrite morphologies in computer models. This morphological characterization ranges from the study of fractal principles to describe dendrite topologies, to the consequences of optimization principles for dendrite shape. Individual approaches are collected to study the aspects of dendrite shape that relate directly to underlying circuit constraints and computation. The second main theme focuses on how dendrites contribute to the computations that neurons perform. What role do dendritic morphology and the distributions of synapses and membrane properties over the dendritic tree have in determining the output of a neuron in response to its input? A wide range of studies is brought together, with topics ranging from general to system-specific phenomena—some having a strong experimental component, and others being fully theoretical. The studies come from many different neural systems and animal species ranging from invertebrates to mammals. With this broad focus, an overview is given of the diversity of mechanisms that dendrites can employ to shape neural computations.

XIII Mediterranean Conference on Medical and Biological Engineering and Computing 2013

XIII Mediterranean Conference on Medical and Biological Engineering and Computing 2013 PDF Author: Laura M. Roa Romero
Publisher: Springer Science & Business Media
ISBN: 3319008463
Category : Technology & Engineering
Languages : en
Pages : 1978

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Book Description
The general theme of MEDICON 2013 is "Research and Development of Technology for Sustainable Healthcare". This decade is being characterized by the appearance and use of emergent technologies under development. This situation has produced a tremendous impact on Medicine and Biology from which it is expected an unparalleled evolution in these disciplines towards novel concept and practices. The consequence will be a significant improvement in health care and well-fare, i.e. the shift from a reactive medicine to a preventive medicine. This shift implies that the citizen will play an important role in the healthcare delivery process, what requires a comprehensive and personalized assistance. In this context, society will meet emerging media, incorporated to all objects, capable of providing a seamless, adaptive, anticipatory, unobtrusive and pervasive assistance. The challenge will be to remove current barriers related to the lack of knowledge required to produce new opportunities for all the society, while new paradigms are created for this inclusive society to be socially and economically sustainable, and respectful with the environment. In this way, these proceedings focus on the convergence of biomedical engineering topics ranging from formalized theory through experimental science and technological development to practical clinical applications.

Handbook of Computational Chemistry

Handbook of Computational Chemistry PDF Author: Jerzy Leszczynski
Publisher: Springer Science & Business Media
ISBN: 940070710X
Category : Computers
Languages : en
Pages : 1451

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Book Description
This handbook is a guide to current methods of computational chemistry, explaining their limitations and advantages and providing examples of their applications. The first part outlines methods, the balance of volumes present numerous important applications.

Proceedings of the International Conference on Soft Computing Systems

Proceedings of the International Conference on Soft Computing Systems PDF Author: L. Padma Suresh
Publisher: Springer
ISBN: 8132226712
Category : Technology & Engineering
Languages : en
Pages : 973

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Book Description
The book is a collection of high-quality peer-reviewed research papers presented in International Conference on Soft Computing Systems (ICSCS 2015) held at Noorul Islam Centre for Higher Education, Chennai, India. These research papers provide the latest developments in the emerging areas of Soft Computing in Engineering and Technology. The book is organized in two volumes and discusses a wide variety of industrial, engineering and scientific applications of the emerging techniques. It presents invited papers from the inventors/originators of new applications and advanced technologies.

Brain Computations and Connectivity

Brain Computations and Connectivity PDF Author: Edmund T. Rolls
Publisher: Oxford University Press
ISBN: 0198887922
Category : Computers
Languages : en
Pages : 1174

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Book Description
This is an open access title available under the terms of a CC BY-NC-ND 4.0 International licence. It is free to read on the Oxford Academic platform and offered as a free PDF download from OUP and selected open access locations. Brain Computations and Connectivity is about how the brain works. In order to understand this, it is essential to know what is computed by different brain systems; and how the computations are performed. The aim of this book is to elucidate what is computed in different brain systems; and to describe current biologically plausible computational approaches and models of how each of these brain systems computes. Understanding the brain in this way has enormous potential for understanding ourselves better in health and in disease. Potential applications of this understanding are to the treatment of the brain in disease; and to artificial intelligence which will benefit from knowledge of how the brain performs many of its extraordinarily impressive functions. This book is pioneering in taking this approach to brain function: to consider what is computed by many of our brain systems; and how it is computed, and updates by much new evidence including the connectivity of the human brain the earlier book: Rolls (2021) Brain Computations: What and How, Oxford University Press. Brain Computations and Connectivity will be of interest to all scientists interested in brain function and how the brain works, whether they are from neuroscience, or from medical sciences including neurology and psychiatry, or from the area of computational science including machine learning and artificial intelligence, or from areas such as theoretical physics.

Artificial Intelligence and Evolutionary Computations in Engineering Systems

Artificial Intelligence and Evolutionary Computations in Engineering Systems PDF Author: Subhransu Sekhar Dash
Publisher: Springer
ISBN: 8132226569
Category : Technology & Engineering
Languages : en
Pages : 1319

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Book Description
The book is a collection of high-quality peer-reviewed research papers presented in the first International Conference on International Conference on Artificial Intelligence and Evolutionary Computations in Engineering Systems (ICAIECES -2015) held at Velammal Engineering College (VEC), Chennai, India during 22 – 23 April 2015. The book discusses wide variety of industrial, engineering and scientific applications of the emerging techniques. Researchers from academic and industry present their original work and exchange ideas, information, techniques and applications in the field of Communication, Computing and Power Technologies.

Modeling in Computational Biology and Biomedicine

Modeling in Computational Biology and Biomedicine PDF Author: Frédéric Cazals
Publisher: Springer Science & Business Media
ISBN: 364231208X
Category : Mathematics
Languages : en
Pages : 333

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Book Description
Computational biology, mathematical biology, biology and biomedicine are currently undergoing spectacular progresses due to a synergy between technological advances and inputs from physics, chemistry, mathematics, statistics and computer science. The goal of this book is to evidence this synergy by describing selected developments in the following fields: bioinformatics, biomedicine and neuroscience. This work is unique in two respects - first, by the variety and scales of systems studied and second, by its presentation: Each chapter provides the biological or medical context, follows up with mathematical or algorithmic developments triggered by a specific problem and concludes with one or two success stories, namely new insights gained thanks to these methodological developments. It also highlights some unsolved and outstanding theoretical questions, with a potentially high impact on these disciplines. Two communities will be particularly interested in this book. The first one is the vast community of applied mathematicians and computer scientists, whose interests should be captured by the added value generated by the application of advanced concepts and algorithms to challenging biological or medical problems. The second is the equally vast community of biologists. Whether scientists or engineers, they will find in this book a clear and self-contained account of concepts and techniques from mathematics and computer science, together with success stories on their favorite systems. The variety of systems described represents a panoply of complementary conceptual tools. On a practical level, the resources listed at the end of each chapter (databases, software) offer invaluable support for getting started on a specific topic in the fields of biomedicine, bioinformatics and neuroscience.

Development, structure and function of vertebrate retinas: A virtual festschrift for Prof. Steve Massey

Development, structure and function of vertebrate retinas: A virtual festschrift for Prof. Steve Massey PDF Author: David W. Marshak
Publisher: Frontiers Media SA
ISBN: 2832553516
Category : Medical
Languages : en
Pages : 261

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Book Description
This is a remarkable time to study the vertebrate retina, either as a model for the brain or to understand the first steps in vison. We have known about the diversity of retinal neurons and glia for more than one hundred years, and we are now extending these findings and making new discoveries about retinal cell types by analyzing gene expression in single cells. We have made significant progress toward our ultimate goals of describing the neural circuits in the retinas at the level of connections between identified populations of neurons and understanding neuronal and glial cell function at the molecular level. We have also made great strides toward understanding retinal development and the etiology of retinal diseases. Physiologists are now using more realistic stimuli and modern analytical methods to analyze the mechanisms underlying light responses of retinal neurons, and this has led to more accurate computational models of neural circuits in the retina. My colleague at the McGovern Medical School in Houston, Steve Massey, has made many important contributions to this field, both as a researcher and as a mentor, and he is planning his retirement. Judith Ogilvie, Christophe Ribelayga, Chai-an Mao and I will dedicate this issue to him and plan to publish some of his latest work. This Research Topic will include mini-reviews and brief communications about neurons and neural circuits in vertebrate retinas. The scope will be very broad, including anatomical, physiological, psychophysical and computational approaches to this topic. Potential topics include, but are not restricted to: • Development. morphology and synaptic connections of neuronal types • Light responses, spontaneous activity and membrane properties of retinal neurons • Gene expression and other aspects of cell biology of identified retinal neurons • Release of neurotransmitters and modulators and their effects in the retina • Structure and function of electrical synapses in the retina • Neural circuits that mediate responses to color, contrast and movement • Roles of neuroglia in retinal development, homeostasis and light responses • Contributions of neural circuits in the retina to visual perception • Evolution of neuronal types and neural circuits in the retina • Novel techniques for analyzing retinal neurons and neural circuits • Non-invasive methods to analyze retinal structure and function • Etiology of retinal diseases and potential new therapies • Directions for future research on the vertebrate retina