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Author: William Biederman
Publisher:
ISBN:
Category :
Languages : en
Pages : 92
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Book Description
Brain machine interfaces have the potential to revolutionize our understanding of the brain, restore motor function, and improve the quality of life to patients with neurological con- ditions. In recent human trials, control of robotic prostheses has been demonstrated using micro-electrode arrays, which provide high spatio-temporal resolution and an electrical feed- back path to the brain. However, after implantation, scar tissue degrades the recording signal-to-noise ratio and limits the useful lifetime of the array. This work presents two systems which utilize wireless techniques to mitigate this effect and create high-density, long-term interfaces with the human brain. A wirelessly powered 0.125mm2 65nm CMOS IC integrates four 1.5uW amplifiers (6.5uVrms input-referred noise with 10kHz bandwidth) with power conditioning and communication cir- cuitry. Multiple nodes free-float in the brain and communicate via backscatter to a wireless interrogator using a frequency-domain multiple access communication scheme. The full sys- tem, verified with wirelessly powered in vivo recordings, consumes 10.5uW and operates at 1mm range in air with 50mW transmit power. A 65nm CMOS 4.78mm2 neuromodulation SoC integrates closed loop BMI functionality on a single IC which can be arrayed on a wireless sub-cranial platform. The IC consumes 348uA from an unregulated 1.2V supply while operating 64 acquisition channels with epoch compression (at an average firing rate of 50Hz) and engaging two stimulators (with a pulse width of 250us/phase, differential current of 150uA, and a pulse frequency of 100Hz). Com- pared to the state of the art neural SoCs, this represents the lowest area and power for the highest integration complexity achieved to date.
Author: William Biederman
Publisher:
ISBN:
Category :
Languages : en
Pages : 92
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Book Description
Brain machine interfaces have the potential to revolutionize our understanding of the brain, restore motor function, and improve the quality of life to patients with neurological con- ditions. In recent human trials, control of robotic prostheses has been demonstrated using micro-electrode arrays, which provide high spatio-temporal resolution and an electrical feed- back path to the brain. However, after implantation, scar tissue degrades the recording signal-to-noise ratio and limits the useful lifetime of the array. This work presents two systems which utilize wireless techniques to mitigate this effect and create high-density, long-term interfaces with the human brain. A wirelessly powered 0.125mm2 65nm CMOS IC integrates four 1.5uW amplifiers (6.5uVrms input-referred noise with 10kHz bandwidth) with power conditioning and communication cir- cuitry. Multiple nodes free-float in the brain and communicate via backscatter to a wireless interrogator using a frequency-domain multiple access communication scheme. The full sys- tem, verified with wirelessly powered in vivo recordings, consumes 10.5uW and operates at 1mm range in air with 50mW transmit power. A 65nm CMOS 4.78mm2 neuromodulation SoC integrates closed loop BMI functionality on a single IC which can be arrayed on a wireless sub-cranial platform. The IC consumes 348uA from an unregulated 1.2V supply while operating 64 acquisition channels with epoch compression (at an average firing rate of 50Hz) and engaging two stimulators (with a pulse width of 250us/phase, differential current of 150uA, and a pulse frequency of 100Hz). Com- pared to the state of the art neural SoCs, this represents the lowest area and power for the highest integration complexity achieved to date.
Author: Morris (Ming-Dou) Ker
Publisher: Frontiers Media SA
ISBN: 2889740234
Category : Science
Languages : en
Pages : 162
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Book Description
Professor Ker is on the Board of Amazingneuron. The Other Topic Editors Declare no Competing Interests With Regards to the Research Topic Theme.
Author: Gürkan Yilmaz
Publisher: Springer
ISBN: 331949337X
Category : Technology & Engineering
Languages : en
Pages : 119
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Book Description
This book presents new circuits and systems for implantable biomedical applications targeting neural recording. The authors describe a system design adapted to conform to the requirements of an epilepsy monitoring system. Throughout the book, these requirements are reflected in terms of implant size, power consumption, and data rate. In addition to theoretical background which explains the relevant technical challenges, the authors provide practical, step-by-step solutions to these problems. Readers will gain understanding of the numerical values in such a system, enabling projections for feasibility of new projects.
Author: Xiaoxiang Zheng
Publisher: Springer Nature
ISBN: 9811320500
Category : Medical
Languages : en
Pages : 250
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Book Description
This book focuses on the frontiers of neural interface technology, including hardware, software, neural decoding and encoding, control systems, and system integration. It also discusses applications for neuroprosthetics, neural diseases and neurorobotics, and the toolkits for basic neuroscience. A neural interface establishes a direct communication channel with the central or peripheral nervous system (CNS or PNS), and enables the nervous system to interact directly with the external devices. Recent advances in neuroscience and engineering are speeding up neural interface technology, paving the way for assisting, augmenting, repairing or restoring sensorimotor and other cognitive functions impaired due to neurological disease or trauma, and so improving the quality of life of those affected. Neural interfaces are now being explored in applications as diverse as rehabilitation, accessibility, gaming, education, recreation, robotics and human enhancement. Neural interfaces also represent a powerful tool to address fundamental questions in neuroscience. Recent decades have witnessed tremendous advances in the field, with a huge impact not only in the development of neuroprosthetics, but also in our basic understanding of brain function. Neural interface technology can be seen as a bridge across the traditional engineering and basic neuroscience. This book provides researchers, graduate and upper undergraduate students from a wide range of disciplines with a cutting-edge and comprehensive summary of neural interface engineering research.
Author: Sohmyung Ha
Publisher: Academic Press
ISBN: 0128151161
Category : Science
Languages : en
Pages : 212
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Book Description
High-Density Integrated Electrocortical Neural Interfaces provides a basic understanding, design strategies and implementation applications for electrocortical neural interfaces with a focus on integrated circuit design technologies. A wide variety of topics associated with the design and application of electrocortical neural implants are covered in this book. Written by leading experts in the field— Dr. Sohmyung Ha, Dr. Chul Kim, Dr. Patrick P. Mercier and Dr. Gert Cauwenberghs —the book discusses basic principles and practical design strategies of electrocorticography, electrode interfaces, signal acquisition, power delivery, data communication, and stimulation. In addition, an overview and critical review of the state-of-the-art research is included. These methodologies present a path towards the development of minimally invasive brain-computer interfaces capable of resolving microscale neural activity with wide-ranging coverage across the cortical surface. - Written by leading researchers in electrocorticography in brain-computer interfaces - Offers a unique focus on neural interface circuit design, from electrode to interface, circuit, powering, communication and encapsulation - Covers the newest ECoG interface systems and electrode interfaces for ECoG and biopotential sensing
Author: Daniel Yeager
Publisher:
ISBN:
Category :
Languages : en
Pages : 92
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Book Description
Neural interfaces promise to radically change medicine. Currently, amputees and persons suffering from debilitating brain disorders lack a way to regain mobility and freedom. By recording and interpreting signals from the motor control regions of the brain, researchers have already demonstrated rudimentary control of robotic prosthetic arms in primate and human trials. Now, the next generation of neural interface electronics must provide the required advances in size and power consumption to enable long-term viability of complex, high degree-of-freedom prosthetic devices. This dissertation presents two complete neural interface systems to address two key challenges: evading the brain's foreign body response to achieve long probe longevity, and scaling wireless, implantable systems to high channel counts. The first, a self-contained, 0.125 mm2, 4-channel wireless recording system, achieves an unprecedented level of miniaturization. This opens the possibility of free-floating neural nodes in the brain tissue, which eliminates strain caused by transcranial wires. Ultimately, this may lead to probes that out- smart the brain's biological response, and provide stable, long-term recordings for chronic brain-machine interfaces. The second system achieves an unprecedented level of integration, combining 64 recording channels, 16 stimulation channels, and neural data compression onto a single 4.78 mm2 IC. Furthermore, the IC achieves substantial improvements in power and area versus state-of-the-art. These improvements in performance and functionality enable neural recording systems that scale up to thousands of channels, or scale down to extremely compact, low weight, low area, wireless interfaces.
Author: Liang Guo
Publisher: Springer Nature
ISBN: 3030418545
Category : Technology & Engineering
Languages : en
Pages : 436
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Book Description
This book provides a comprehensive reference to major neural interfacing technologies used to transmit signals between the physical world and the nervous system for repairing, restoring and even augmenting body functions. The authors discuss the classic approaches for neural interfacing, the major challenges encountered, and recent, emerging techniques to mitigate these challenges for better chronic performances. Readers will benefit from this book’s unprecedented scope and depth of coverage on the technology of neural interfaces, the most critical component in any type of neural prostheses. Provides comprehensive coverage of major neural interfacing technologies; Reviews and discusses both classic and latest, emerging topics; Includes classification of technologies to provide an easy grasp of research and trends in the field.
Author: Massimo De Vittorio
Publisher: Springer
ISBN: 1489980385
Category : Technology & Engineering
Languages : en
Pages : 293
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Book Description
This book describes the use of modern micro- and nanofabrication technologies to develop improved tools for stimulating and recording electrical activity in neuronal networks. It provides an overview of the different ways in which the “nano-world” can be beneficial for neuroscientists, including improvement of mechanical adhesion of cells on electrodes, tight-sealed extracellular recordings or intracellular approaches with strongly reduced invasiveness and tools for localized electrical or optical stimulation in optogenetics experiments. Specific discussion of fabrication strategies is included, to provide a comprehensive guide to develop micro and nanostructured tools for biological applications. A perspective on integrating these devices with state-of-the-art technologies for large-scale in vitro and in vivo experiments completes the picture of neuronal interfacing with micro- and nanostructures.
Author: Christoph Guger
Publisher: Springer
ISBN: 331957132X
Category : Computers
Languages : en
Pages : 136
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Book Description
This book describes the prize-winning brain-computer-interface (BCI) projects honored in the community's most prestigious annual award. BCIs enable people to communicate and control their limbs and/or environment using thought processes alone. Research in this field continues to develop and expand rapidly, with many new ideas, research groups, and improved technologies having emerged in recent years. The chapters in this volume feature the newest developments from many of the best labs worldwide. They present both non-invasive systems (based on the EEG) and intracortical methods (based on spikes or ECoG), and numerous innovative applications that will benefit new user groups
Author: William M. Reichert
Publisher: CRC Press
ISBN: 1420009303
Category : Medical
Languages : en
Pages : 300
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Book Description
Despite enormous advances made in the development of external effector prosthetics over the last quarter century, significant questions remain, especially those concerning signal degradation that occurs with chronically implanted neuroelectrodes. Offering contributions from pioneering researchers in neuroprosthetics and tissue repair, Indwel
