Author: Ilias Maglogiannis
Publisher: Springer Nature
ISBN: 3031016092
Category : Technology & Engineering
Languages : en
Pages : 95
Book Description
E-health is closely related with networks and telecommunications when dealing with applications of collecting or transferring medical data from distant locations for performing remote medical collaborations and diagnosis. In this book we provide an overview of the fields of image and signal processing for networked and distributed e-health applications and their supporting technologies. The book is structured in 10 chapters, starting the discussion from the lower end, that of acquisition and processing of biosignals and medical images and ending in complex virtual reality systems and techniques providing more intuitive interaction in a networked medical environment. The book also discusses networked clinical decision support systems and corresponding medical standards, WWW-based applications, medical collaborative platforms, wireless networking, and the concepts of ambient intelligence and pervasive computing in electronic healthcare systems.
Image and Signal Processing for Networked eHealth Applications
Author: Ilias Maglogiannis
Publisher: Springer Nature
ISBN: 3031016092
Category : Technology & Engineering
Languages : en
Pages : 95
Book Description
E-health is closely related with networks and telecommunications when dealing with applications of collecting or transferring medical data from distant locations for performing remote medical collaborations and diagnosis. In this book we provide an overview of the fields of image and signal processing for networked and distributed e-health applications and their supporting technologies. The book is structured in 10 chapters, starting the discussion from the lower end, that of acquisition and processing of biosignals and medical images and ending in complex virtual reality systems and techniques providing more intuitive interaction in a networked medical environment. The book also discusses networked clinical decision support systems and corresponding medical standards, WWW-based applications, medical collaborative platforms, wireless networking, and the concepts of ambient intelligence and pervasive computing in electronic healthcare systems.
Publisher: Springer Nature
ISBN: 3031016092
Category : Technology & Engineering
Languages : en
Pages : 95
Book Description
E-health is closely related with networks and telecommunications when dealing with applications of collecting or transferring medical data from distant locations for performing remote medical collaborations and diagnosis. In this book we provide an overview of the fields of image and signal processing for networked and distributed e-health applications and their supporting technologies. The book is structured in 10 chapters, starting the discussion from the lower end, that of acquisition and processing of biosignals and medical images and ending in complex virtual reality systems and techniques providing more intuitive interaction in a networked medical environment. The book also discusses networked clinical decision support systems and corresponding medical standards, WWW-based applications, medical collaborative platforms, wireless networking, and the concepts of ambient intelligence and pervasive computing in electronic healthcare systems.
Image and Signal Processing for Networked E-health Applications
Author: Ilias G. Maglogiannis
Publisher: Morgan & Claypool Publishers
ISBN: 1598290363
Category : Ambient intelligence
Languages : en
Pages : 109
Book Description
Annotation E-Health applications facilitate the exchange of information between clinicians or between institutions, reducing costs, extending the scope and reach of medical facilities, enhancing the quality of service offered on- and off-site, and provides new means of medical supervision and preemptive medicine. Currently, the integration of medical networking and medical information systems is treated as an obvious need; standalone medical networking environments are no longer a reality and the term "telemedicine" is in practice used interchangeably with e-Health. This book provides an overview of the field of Networked e-health applications and telemedicine and its supporting technologies. Chapters focus on signals, signal processing, electroencephalogram (EEG) and the Electrocardiogram (ECG or EKG), medical imaging, as well as a look at medical signal processing and classification from the point of view of urgent medical support, where not every possible type of medical equipment is readily available. Also covered is the encoding for transmission of medical data. Compression is of central importance, as is loss of information and ways to minimize it. The final section of the book addresses the design, implementation, and operation of e-Health systems.
Publisher: Morgan & Claypool Publishers
ISBN: 1598290363
Category : Ambient intelligence
Languages : en
Pages : 109
Book Description
Annotation E-Health applications facilitate the exchange of information between clinicians or between institutions, reducing costs, extending the scope and reach of medical facilities, enhancing the quality of service offered on- and off-site, and provides new means of medical supervision and preemptive medicine. Currently, the integration of medical networking and medical information systems is treated as an obvious need; standalone medical networking environments are no longer a reality and the term "telemedicine" is in practice used interchangeably with e-Health. This book provides an overview of the field of Networked e-health applications and telemedicine and its supporting technologies. Chapters focus on signals, signal processing, electroencephalogram (EEG) and the Electrocardiogram (ECG or EKG), medical imaging, as well as a look at medical signal processing and classification from the point of view of urgent medical support, where not every possible type of medical equipment is readily available. Also covered is the encoding for transmission of medical data. Compression is of central importance, as is loss of information and ways to minimize it. The final section of the book addresses the design, implementation, and operation of e-Health systems.
3D Electro-Rotation of Single Cells
Author: Liang Huang
Publisher: Springer Nature
ISBN: 3031016661
Category : Technology & Engineering
Languages : en
Pages : 101
Book Description
Dielectrophoresis microfluidic chips have been widely used in various biological applications due to their advantages of convenient operation, high throughput, and low cost. However, most of the DEP microfluidic chips are based on 2D planar electrodes which have some limitations, such as electric field attenuation, small effective working regions, and weak DEP forces. In order to overcome the limitations of 2D planar electrodes, two kinds of thick-electrode DEP chips were designed to realize manipulation and multi-parameter measurement of single cells. Based on the multi-electrode structure of thick-electrode DEP, a single-cell 3D electro-rotation chip of "Armillary Sphere" was designed. The chip uses four thick electrodes and a bottom planar electrode to form an electric field chamber, which can control 3D rotation of single cells under different electric signal configurations. Electrical property measurement and 3D image reconstruction of single cells are achieved based on single-cell 3D rotation. This work overcomes the limitations of 2D planar electrodes and effectively solves the problem of unstable spatial position of single-cell samples, and provides a new platform for single-cell analysis. Based on multi-electrode structure of thick-electrode DEP, a microfluidic chip with optoelectronic integration was presented. A dual-fiber optical stretcher embedded in thick electrodes can trap and stretch a single cell while the thick electrodes are used for single-cell rotation. Stretching and rotation manipulation gives the chip the ability to simultaneously measure mechanical and electrical properties of single cells, providing a versatile platform for single-cell analysis, further extending the application of thick-electrode DEP in biological manipulation and analysis.
Publisher: Springer Nature
ISBN: 3031016661
Category : Technology & Engineering
Languages : en
Pages : 101
Book Description
Dielectrophoresis microfluidic chips have been widely used in various biological applications due to their advantages of convenient operation, high throughput, and low cost. However, most of the DEP microfluidic chips are based on 2D planar electrodes which have some limitations, such as electric field attenuation, small effective working regions, and weak DEP forces. In order to overcome the limitations of 2D planar electrodes, two kinds of thick-electrode DEP chips were designed to realize manipulation and multi-parameter measurement of single cells. Based on the multi-electrode structure of thick-electrode DEP, a single-cell 3D electro-rotation chip of "Armillary Sphere" was designed. The chip uses four thick electrodes and a bottom planar electrode to form an electric field chamber, which can control 3D rotation of single cells under different electric signal configurations. Electrical property measurement and 3D image reconstruction of single cells are achieved based on single-cell 3D rotation. This work overcomes the limitations of 2D planar electrodes and effectively solves the problem of unstable spatial position of single-cell samples, and provides a new platform for single-cell analysis. Based on multi-electrode structure of thick-electrode DEP, a microfluidic chip with optoelectronic integration was presented. A dual-fiber optical stretcher embedded in thick electrodes can trap and stretch a single cell while the thick electrodes are used for single-cell rotation. Stretching and rotation manipulation gives the chip the ability to simultaneously measure mechanical and electrical properties of single cells, providing a versatile platform for single-cell analysis, further extending the application of thick-electrode DEP in biological manipulation and analysis.
Biomedical Signals and Systems
Author: Joseph Tranquillo
Publisher: Springer Nature
ISBN: 3031016599
Category : Technology & Engineering
Languages : en
Pages : 211
Book Description
Biomedical Signals and Systems is meant to accompany a one-semester undergraduate signals and systems course. It may also serve as a quick-start for graduate students or faculty interested in how signals and systems techniques can be applied to living systems. The biological nature of the examples allows for systems thinking to be applied to electrical, mechanical, fluid, chemical, thermal and even optical systems. Each chapter focuses on a topic from classic signals and systems theory: System block diagrams, mathematical models, transforms, stability, feedback, system response, control, time and frequency analysis and filters. Embedded within each chapter are examples from the biological world, ranging from medical devices to cell and molecular biology. While the focus of the book is on the theory of analog signals and systems, many chapters also introduce the corresponding topics in the digital realm. Although some derivations appear, the focus is on the concepts and how to apply them. Throughout the text, systems vocabulary is introduced which will allow the reader to read more advanced literature and communicate with scientist and engineers. Homework and Matlab simulation exercises are presented at the end of each chapter and challenge readers to not only perform calculations and simulations but also to recognize the real-world signals and systems around them. Table of Contents: Preface / Acknowledgments / Introduction / System Types / System Models / Laplace Transform / Block Diagrams / Stability / Feedback / System Response / Control / Time Domain Analysis / Frequency Domain Analysis / Filters / Author's Biography
Publisher: Springer Nature
ISBN: 3031016599
Category : Technology & Engineering
Languages : en
Pages : 211
Book Description
Biomedical Signals and Systems is meant to accompany a one-semester undergraduate signals and systems course. It may also serve as a quick-start for graduate students or faculty interested in how signals and systems techniques can be applied to living systems. The biological nature of the examples allows for systems thinking to be applied to electrical, mechanical, fluid, chemical, thermal and even optical systems. Each chapter focuses on a topic from classic signals and systems theory: System block diagrams, mathematical models, transforms, stability, feedback, system response, control, time and frequency analysis and filters. Embedded within each chapter are examples from the biological world, ranging from medical devices to cell and molecular biology. While the focus of the book is on the theory of analog signals and systems, many chapters also introduce the corresponding topics in the digital realm. Although some derivations appear, the focus is on the concepts and how to apply them. Throughout the text, systems vocabulary is introduced which will allow the reader to read more advanced literature and communicate with scientist and engineers. Homework and Matlab simulation exercises are presented at the end of each chapter and challenge readers to not only perform calculations and simulations but also to recognize the real-world signals and systems around them. Table of Contents: Preface / Acknowledgments / Introduction / System Types / System Models / Laplace Transform / Block Diagrams / Stability / Feedback / System Response / Control / Time Domain Analysis / Frequency Domain Analysis / Filters / Author's Biography
Ethics for Bioengineers
Author: Monique Frize
Publisher: Springer Nature
ISBN: 3031016467
Category : Technology & Engineering
Languages : en
Pages : 72
Book Description
Increasingly, biomedical scientists and engineers are involved in projects, design, or research and development that involve humans or animals. The book presents general concepts on professionalism and the regulation of the profession of engineering, including a discussion on what is ethics and moral conduct, ethical theories and the codes of ethics that are most relevant for engineers. An ethical decision-making process is suggested. Other issues such as conflicts of interest, plagiarism, intellectual property, confidentiality, privacy, fraud, and corruption are presented. General guidelines, the process for obtaining ethics approval from Ethics Review Boards, and the importance of obtaining informed consent from volunteers recruited for studies are presented. A discussion on research with animals is included. Ethical dilemmas focus on reproductive technologies, stem cells, cloning, genetic testing, and designer babies. The book includes a discussion on ethics and the technologies of body enhancement and of regeneration. The importance of assessing the impact of technology on people, society, and on our planet is stressed. Particular attention is given to nanotechnologies, the environment, and issues that pertain to developing countries. Ideas on gender, culture, and ethics focus on how research and access to medical services have, at times, been discriminatory towards women. The cultural aspects focus on organ transplantation in Japan, and a case study of an Aboriginal child in Canada; both examples show the impact that culture can have on how care is provided or accepted. The final section of the book discusses data collection and analysis and offers a guideline for honest reporting of results, avoiding fraud, or unethical approaches. The appendix presents a few case studies where fraud and/or unethical research have occurred. Table of Contents: Introduction to Ethics / Experiments with Human Subjects or Animals / Examples of Ethical Dilemmas in Biomedical Research / Technology and Society / Gender, Culture, and Ethics / Data Collection and Analysis
Publisher: Springer Nature
ISBN: 3031016467
Category : Technology & Engineering
Languages : en
Pages : 72
Book Description
Increasingly, biomedical scientists and engineers are involved in projects, design, or research and development that involve humans or animals. The book presents general concepts on professionalism and the regulation of the profession of engineering, including a discussion on what is ethics and moral conduct, ethical theories and the codes of ethics that are most relevant for engineers. An ethical decision-making process is suggested. Other issues such as conflicts of interest, plagiarism, intellectual property, confidentiality, privacy, fraud, and corruption are presented. General guidelines, the process for obtaining ethics approval from Ethics Review Boards, and the importance of obtaining informed consent from volunteers recruited for studies are presented. A discussion on research with animals is included. Ethical dilemmas focus on reproductive technologies, stem cells, cloning, genetic testing, and designer babies. The book includes a discussion on ethics and the technologies of body enhancement and of regeneration. The importance of assessing the impact of technology on people, society, and on our planet is stressed. Particular attention is given to nanotechnologies, the environment, and issues that pertain to developing countries. Ideas on gender, culture, and ethics focus on how research and access to medical services have, at times, been discriminatory towards women. The cultural aspects focus on organ transplantation in Japan, and a case study of an Aboriginal child in Canada; both examples show the impact that culture can have on how care is provided or accepted. The final section of the book discusses data collection and analysis and offers a guideline for honest reporting of results, avoiding fraud, or unethical approaches. The appendix presents a few case studies where fraud and/or unethical research have occurred. Table of Contents: Introduction to Ethics / Experiments with Human Subjects or Animals / Examples of Ethical Dilemmas in Biomedical Research / Technology and Society / Gender, Culture, and Ethics / Data Collection and Analysis
Introduction to Biomedical Engineering
Author: Douglas Christensen
Publisher: Springer Nature
ISBN: 303101636X
Category : Technology & Engineering
Languages : en
Pages : 107
Book Description
Intended as an introduction to the field of biomedical engineering, this book covers the topics of biomechanics (Part I) and bioelectricity (Part II). Each chapter emphasizes a fundamental principle or law, such as Darcy's Law, Poiseuille's Law, Hooke's Law, Starling's Law, levers, and work in the area of fluid, solid, and cardiovascular biomechanics. In addition, electrical laws and analysis tools are introduced, including Ohm's Law, Kirchhoff's Laws, Coulomb's Law, capacitors and the fluid/electrical analogy. Culminating the electrical portion are chapters covering Nernst and membrane potentials and Fourier transforms. Examples are solved throughout the book and problems with answers are given at the end of each chapter. A semester-long Major Project that models the human systemic cardiovascular system, utilizing both a Matlab numerical simulation and an electrical analog circuit, ties many of the book's concepts together. Table of Contents: Basic Concepts / Darcy's Law / Poiseuille's Law: Pressure-Driven Flow Through Tubes / Hooke's Law: Elasticity of Tissues and Compliant Vessels / Starling's Law of the Heart, Windkessel Elements and Volume / Euler's Method and First-Order Time Constants / Muscle, Leverage, Work, Energy and Power
Publisher: Springer Nature
ISBN: 303101636X
Category : Technology & Engineering
Languages : en
Pages : 107
Book Description
Intended as an introduction to the field of biomedical engineering, this book covers the topics of biomechanics (Part I) and bioelectricity (Part II). Each chapter emphasizes a fundamental principle or law, such as Darcy's Law, Poiseuille's Law, Hooke's Law, Starling's Law, levers, and work in the area of fluid, solid, and cardiovascular biomechanics. In addition, electrical laws and analysis tools are introduced, including Ohm's Law, Kirchhoff's Laws, Coulomb's Law, capacitors and the fluid/electrical analogy. Culminating the electrical portion are chapters covering Nernst and membrane potentials and Fourier transforms. Examples are solved throughout the book and problems with answers are given at the end of each chapter. A semester-long Major Project that models the human systemic cardiovascular system, utilizing both a Matlab numerical simulation and an electrical analog circuit, ties many of the book's concepts together. Table of Contents: Basic Concepts / Darcy's Law / Poiseuille's Law: Pressure-Driven Flow Through Tubes / Hooke's Law: Elasticity of Tissues and Compliant Vessels / Starling's Law of the Heart, Windkessel Elements and Volume / Euler's Method and First-Order Time Constants / Muscle, Leverage, Work, Energy and Power
Capstone Design Courses, Part Two
Author: Jay Goldberg
Publisher: Morgan & Claypool Publishers
ISBN: 1627050442
Category : Technology & Engineering
Languages : en
Pages : 97
Book Description
The biomedical engineering senior capstone design course is probably the most important course taken by undergraduate biomedical engineering students. It provides them with the opportunity to apply what they have learned in previous years, develop their communication, teamwork, project management, and design skills, and learn about the product development process. It prepares students for professional practice and serves as a preview of what it will be like to work as a biomedical engineer. The capstone design experience can change the way engineering students think about technology, themselves, society, and the world around them. It can make them aware of their potential to make a positive contribution to healthcare throughout the world and generate excitement for, and pride in, the engineering profession. Ideas for how to organize, structure, and manage a senior capstone design course for biomedical and other engineering students are presented here. These ideas will be helpful to faculty who are creating a new design course, expanding a current design program, or just looking for some ideas for improving an existing course. The better we can make these courses, the more "industry ready" our students will be, and the better prepared they will be for meaningful, successful careers in biomedical engineering. This book is the second part of a series covering Capstone Design Courses for biomedical engineers. Part I is available online here and in print (ISBN 9781598292923) and covers the following topics: Purpose, Goals, and Benefits; Designing a Course to Meet Student Needs; Enhancing the Capstone Design Courses; Meeting the Changing Needs of Future Engineers. Table of Contents: The Myth of the "Industry-Ready" Engineer / Recent Trends and the Current State of Capstone Design / Preparing Students for Capstone Design / Helping Students Recognize the Value of Capstone Design Courses / Developing Teamwork Skills / Incorporating Design Controls / Learning to Identify Problems, Unmet Needs, and New Product Opportunities / Design Verification and Validation / Liability Issues with Assistive Technology Projects / Standards in Capstone Design Courses and the Engineering Curriculum / Design Transfer and Design for Manufacturability / Learning from other Engineering Disciplines: Capstone Design Conferences / Maintaining a Relevant, Up-to-Date Capstone Design Course / Active Learning in Capstone Design Courses / Showcasing Student Projects: National Student Design Competitions / Managing Student Expectations of the "Real World" / Career Management and Professional Development / Conclusion
Publisher: Morgan & Claypool Publishers
ISBN: 1627050442
Category : Technology & Engineering
Languages : en
Pages : 97
Book Description
The biomedical engineering senior capstone design course is probably the most important course taken by undergraduate biomedical engineering students. It provides them with the opportunity to apply what they have learned in previous years, develop their communication, teamwork, project management, and design skills, and learn about the product development process. It prepares students for professional practice and serves as a preview of what it will be like to work as a biomedical engineer. The capstone design experience can change the way engineering students think about technology, themselves, society, and the world around them. It can make them aware of their potential to make a positive contribution to healthcare throughout the world and generate excitement for, and pride in, the engineering profession. Ideas for how to organize, structure, and manage a senior capstone design course for biomedical and other engineering students are presented here. These ideas will be helpful to faculty who are creating a new design course, expanding a current design program, or just looking for some ideas for improving an existing course. The better we can make these courses, the more "industry ready" our students will be, and the better prepared they will be for meaningful, successful careers in biomedical engineering. This book is the second part of a series covering Capstone Design Courses for biomedical engineers. Part I is available online here and in print (ISBN 9781598292923) and covers the following topics: Purpose, Goals, and Benefits; Designing a Course to Meet Student Needs; Enhancing the Capstone Design Courses; Meeting the Changing Needs of Future Engineers. Table of Contents: The Myth of the "Industry-Ready" Engineer / Recent Trends and the Current State of Capstone Design / Preparing Students for Capstone Design / Helping Students Recognize the Value of Capstone Design Courses / Developing Teamwork Skills / Incorporating Design Controls / Learning to Identify Problems, Unmet Needs, and New Product Opportunities / Design Verification and Validation / Liability Issues with Assistive Technology Projects / Standards in Capstone Design Courses and the Engineering Curriculum / Design Transfer and Design for Manufacturability / Learning from other Engineering Disciplines: Capstone Design Conferences / Maintaining a Relevant, Up-to-Date Capstone Design Course / Active Learning in Capstone Design Courses / Showcasing Student Projects: National Student Design Competitions / Managing Student Expectations of the "Real World" / Career Management and Professional Development / Conclusion
Fast Quantitative Magnetic Resonance Imaging
Author: Guido Buonincontri
Publisher: Springer Nature
ISBN: 303101667X
Category : Technology & Engineering
Languages : en
Pages : 124
Book Description
Among medical imaging modalities, magnetic resonance imaging (MRI) stands out for its excellent soft-tissue contrast, anatomical detail, and high sensitivity for disease detection. However, as proven by the continuous and vast effort to develop new MRI techniques, limitations and open challenges remain. The primary source of contrast in MRI images are the various relaxation parameters associated with the nuclear magnetic resonance (NMR) phenomena upon which MRI is based. Although it is possible to quantify these relaxation parameters (qMRI) they are rarely used in the clinic, and radiological interpretation of images is primarily based upon images that are relaxation time weighted. The clinical adoption of qMRI is mainly limited by the long acquisition times required to quantify each relaxation parameter as well as questions around their accuracy and reliability. More specifically, the main limitations of qMRI methods have been the difficulty in dealing with the high inter-parameter correlations and a high sensitivity to MRI system imperfections. Recently, new methods for rapid qMRI have been proposed. The multi-parametric models at the heart of these techniques have the main advantage of accounting for the correlations between the parameters of interest as well as system imperfections. This holistic view on the MR signal makes it possible to regress many individual parameters at once, potentially with a higher accuracy. Novel, accurate techniques promise a fast estimation of relevant MRI quantities, including but not limited to longitudinal (T1) and transverse (T2) relaxation times. Among these emerging methods, MR Fingerprinting (MRF), synthetic MR (syMRI or MAGIC), and T1‒T2 Shuffling are making their way into the clinical world at a very fast pace. However, the main underlying assumptions and algorithms used are sometimes different from those found in the conventional MRI literature, and can be elusive at times. In this book, we take the opportunity to study and describe the main assumptions, theoretical background, and methods that are the basis of these emerging techniques. Quantitative transient state imaging provides an incredible, transformative opportunity for MRI. There is huge potential to further extend the physics, in conjunction with the underlying physiology, toward a better theoretical description of the underlying models, their application, and evaluation to improve the assessment of disease and treatment efficacy.
Publisher: Springer Nature
ISBN: 303101667X
Category : Technology & Engineering
Languages : en
Pages : 124
Book Description
Among medical imaging modalities, magnetic resonance imaging (MRI) stands out for its excellent soft-tissue contrast, anatomical detail, and high sensitivity for disease detection. However, as proven by the continuous and vast effort to develop new MRI techniques, limitations and open challenges remain. The primary source of contrast in MRI images are the various relaxation parameters associated with the nuclear magnetic resonance (NMR) phenomena upon which MRI is based. Although it is possible to quantify these relaxation parameters (qMRI) they are rarely used in the clinic, and radiological interpretation of images is primarily based upon images that are relaxation time weighted. The clinical adoption of qMRI is mainly limited by the long acquisition times required to quantify each relaxation parameter as well as questions around their accuracy and reliability. More specifically, the main limitations of qMRI methods have been the difficulty in dealing with the high inter-parameter correlations and a high sensitivity to MRI system imperfections. Recently, new methods for rapid qMRI have been proposed. The multi-parametric models at the heart of these techniques have the main advantage of accounting for the correlations between the parameters of interest as well as system imperfections. This holistic view on the MR signal makes it possible to regress many individual parameters at once, potentially with a higher accuracy. Novel, accurate techniques promise a fast estimation of relevant MRI quantities, including but not limited to longitudinal (T1) and transverse (T2) relaxation times. Among these emerging methods, MR Fingerprinting (MRF), synthetic MR (syMRI or MAGIC), and T1‒T2 Shuffling are making their way into the clinical world at a very fast pace. However, the main underlying assumptions and algorithms used are sometimes different from those found in the conventional MRI literature, and can be elusive at times. In this book, we take the opportunity to study and describe the main assumptions, theoretical background, and methods that are the basis of these emerging techniques. Quantitative transient state imaging provides an incredible, transformative opportunity for MRI. There is huge potential to further extend the physics, in conjunction with the underlying physiology, toward a better theoretical description of the underlying models, their application, and evaluation to improve the assessment of disease and treatment efficacy.
Models of Horizontal Eye Movements
Author: Alireza Ghahari
Publisher: Springer Nature
ISBN: 3031016637
Category : Technology & Engineering
Languages : en
Pages : 108
Book Description
There are five different types of eye movements: saccades, smooth pursuit, vestibular ocular eye movements, optokinetic eye movements, and vergence eye movements. The purpose of this book series is focused primarily on mathematical models of the horizontal saccadic eye movement system and the smooth pursuit system, rather than on how visual information is processed. In Part 1, early models of saccades and smooth pursuit are presented. A number of oculomotor plant models are described here beginning with the Westheimer model published in 1954, and up through our 1995 model involving a 4th order oculomotor plant model. In Part 2, a 2009 version of a state-of-the-art model is presented for horizontal saccades that is 3rd-order and linear, and controlled by a physiologically based time-optimal neural network. Part 3 describes a model of the saccade system, focusing on the neural network. It presents a neural network model of biophysical neurons in the midbrain for controlling oculomotor muscles during horizontal human saccades. In this book, a multiscale model of the saccade system is presented, focusing on a multiscale neural network and muscle fiber model. Chapter 1 presents a comprehensive model for the control of horizontal saccades using a muscle fiber model for the lateral and medial rectus muscles. The importance of this model is that each muscle fiber has a separate neural input. This model is robust and accounts for the neural activity for both large and small saccades. The muscle fiber model consists of serial sequences of muscle fibers in parallel with other serial sequences of muscle fibers. Each muscle fiber is described by a parallel combination of a linear length tension element, viscous element, and active-state tension generator. Chapter 2 presents a biophysically realistic neural network model in the midbrain to drive a muscle fiber oculomotor plant during horizontal monkey saccades. Neural circuitry, including omnipause neuron, premotor excitatory and inhibitory burst neurons, long lead burst neuron, tonic neuron, interneuron, abducens nucleus, and oculomotor nucleus, is developed to examine saccade dynamics. The time-optimal control mechanism demonstrates how the neural commands are encoded in the downstream saccadic pathway by realization of agonist and antagonist controller models. Consequently, each agonist muscle fiber is stimulated by an agonist neuron, while an antagonist muscle fiber is unstimulated by a pause and step from the antagonist neuron. It is concluded that the neural network is constrained by a minimum duration of the agonist pulse, and that the most dominant factor in determining the saccade magnitude is the number of active neurons for the small saccades. For the large saccades, however, the duration of agonist burst firing significantly affects the control of saccades. The proposed saccadic circuitry establishes a complete model of saccade generation since it not only includes the neural circuits at both the premotor and motor stages of the saccade generator, but it also uses a time-optimal controller to yield the desired saccade magnitude. Table of Contents: Acknowledgments / A New Linear Muscle Fiber Model for Neural Control of Saccades\footnotemark / A Physiological Neural Controller of a Muscle Fiber Oculomotor Plant in Horizontal Monkey Saccades\footnotemark / References / Authors' Biographies
Publisher: Springer Nature
ISBN: 3031016637
Category : Technology & Engineering
Languages : en
Pages : 108
Book Description
There are five different types of eye movements: saccades, smooth pursuit, vestibular ocular eye movements, optokinetic eye movements, and vergence eye movements. The purpose of this book series is focused primarily on mathematical models of the horizontal saccadic eye movement system and the smooth pursuit system, rather than on how visual information is processed. In Part 1, early models of saccades and smooth pursuit are presented. A number of oculomotor plant models are described here beginning with the Westheimer model published in 1954, and up through our 1995 model involving a 4th order oculomotor plant model. In Part 2, a 2009 version of a state-of-the-art model is presented for horizontal saccades that is 3rd-order and linear, and controlled by a physiologically based time-optimal neural network. Part 3 describes a model of the saccade system, focusing on the neural network. It presents a neural network model of biophysical neurons in the midbrain for controlling oculomotor muscles during horizontal human saccades. In this book, a multiscale model of the saccade system is presented, focusing on a multiscale neural network and muscle fiber model. Chapter 1 presents a comprehensive model for the control of horizontal saccades using a muscle fiber model for the lateral and medial rectus muscles. The importance of this model is that each muscle fiber has a separate neural input. This model is robust and accounts for the neural activity for both large and small saccades. The muscle fiber model consists of serial sequences of muscle fibers in parallel with other serial sequences of muscle fibers. Each muscle fiber is described by a parallel combination of a linear length tension element, viscous element, and active-state tension generator. Chapter 2 presents a biophysically realistic neural network model in the midbrain to drive a muscle fiber oculomotor plant during horizontal monkey saccades. Neural circuitry, including omnipause neuron, premotor excitatory and inhibitory burst neurons, long lead burst neuron, tonic neuron, interneuron, abducens nucleus, and oculomotor nucleus, is developed to examine saccade dynamics. The time-optimal control mechanism demonstrates how the neural commands are encoded in the downstream saccadic pathway by realization of agonist and antagonist controller models. Consequently, each agonist muscle fiber is stimulated by an agonist neuron, while an antagonist muscle fiber is unstimulated by a pause and step from the antagonist neuron. It is concluded that the neural network is constrained by a minimum duration of the agonist pulse, and that the most dominant factor in determining the saccade magnitude is the number of active neurons for the small saccades. For the large saccades, however, the duration of agonist burst firing significantly affects the control of saccades. The proposed saccadic circuitry establishes a complete model of saccade generation since it not only includes the neural circuits at both the premotor and motor stages of the saccade generator, but it also uses a time-optimal controller to yield the desired saccade magnitude. Table of Contents: Acknowledgments / A New Linear Muscle Fiber Model for Neural Control of Saccades\footnotemark / A Physiological Neural Controller of a Muscle Fiber Oculomotor Plant in Horizontal Monkey Saccades\footnotemark / References / Authors' Biographies
Capstone Design Courses, Part II
Author: Jay Goldberg
Publisher: Springer Nature
ISBN: 3031016521
Category : Technology & Engineering
Languages : en
Pages : 83
Book Description
The biomedical engineering senior capstone design course is probably the most important course taken by undergraduate biomedical engineering students. It provides them with the opportunity to apply what they have learned in previous years, develop their communication, teamwork, project management, and design skills, and learn about the product development process. It prepares students for professional practice and serves as a preview of what it will be like to work as a biomedical engineer. The capstone design experience can change the way engineering students think about technology, themselves, society, and the world around them. It can make them aware of their potential to make a positive contribution to healthcare throughout the world and generate excitement for, and pride in, the engineering profession. Ideas for how to organize, structure, and manage a senior capstone design course for biomedical and other engineering students are presented here. These ideas will be helpful to faculty who are creating a new design course, expanding a current design program, or just looking for some ideas for improving an existing course. The better we can make these courses, the more "industry ready" our students will be, and the better prepared they will be for meaningful, successful careers in biomedical engineering. This book is the second part of a series covering Capstone Design Courses for biomedical engineers. Part I is available online here and in print (ISBN 9781598292923) and covers the following topics: Purpose, Goals, and Benefits; Designing a Course to Meet Student Needs; Enhancing the Capstone Design Courses; Meeting the Changing Needs of Future Engineers. Table of Contents: The Myth of the "Industry-Ready" Engineer / Recent Trends and the Current State of Capstone Design / Preparing Students for Capstone Design / Helping Students Recognize the Value of Capstone Design Courses / Developing Teamwork Skills / Incorporating Design Controls / Learning to Identify Problems, Unmet Needs, and New Product Opportunities / Design Verification and Validation / Liability Issues with Assistive Technology Projects / Standards in Capstone Design Courses and the Engineering Curriculum / Design Transfer and Design for Manufacturability / Learning from other Engineering Disciplines: Capstone Design Conferences / Maintaining a Relevant, Up-to-Date Capstone Design Course / Active Learning in Capstone Design Courses / Showcasing Student Projects: National Student Design Competitions / Managing Student Expectations of the "Real World" / Career Management and Professional Development / Conclusion
Publisher: Springer Nature
ISBN: 3031016521
Category : Technology & Engineering
Languages : en
Pages : 83
Book Description
The biomedical engineering senior capstone design course is probably the most important course taken by undergraduate biomedical engineering students. It provides them with the opportunity to apply what they have learned in previous years, develop their communication, teamwork, project management, and design skills, and learn about the product development process. It prepares students for professional practice and serves as a preview of what it will be like to work as a biomedical engineer. The capstone design experience can change the way engineering students think about technology, themselves, society, and the world around them. It can make them aware of their potential to make a positive contribution to healthcare throughout the world and generate excitement for, and pride in, the engineering profession. Ideas for how to organize, structure, and manage a senior capstone design course for biomedical and other engineering students are presented here. These ideas will be helpful to faculty who are creating a new design course, expanding a current design program, or just looking for some ideas for improving an existing course. The better we can make these courses, the more "industry ready" our students will be, and the better prepared they will be for meaningful, successful careers in biomedical engineering. This book is the second part of a series covering Capstone Design Courses for biomedical engineers. Part I is available online here and in print (ISBN 9781598292923) and covers the following topics: Purpose, Goals, and Benefits; Designing a Course to Meet Student Needs; Enhancing the Capstone Design Courses; Meeting the Changing Needs of Future Engineers. Table of Contents: The Myth of the "Industry-Ready" Engineer / Recent Trends and the Current State of Capstone Design / Preparing Students for Capstone Design / Helping Students Recognize the Value of Capstone Design Courses / Developing Teamwork Skills / Incorporating Design Controls / Learning to Identify Problems, Unmet Needs, and New Product Opportunities / Design Verification and Validation / Liability Issues with Assistive Technology Projects / Standards in Capstone Design Courses and the Engineering Curriculum / Design Transfer and Design for Manufacturability / Learning from other Engineering Disciplines: Capstone Design Conferences / Maintaining a Relevant, Up-to-Date Capstone Design Course / Active Learning in Capstone Design Courses / Showcasing Student Projects: National Student Design Competitions / Managing Student Expectations of the "Real World" / Career Management and Professional Development / Conclusion