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Coincidence Detection In The Cochlear Nucleus Implications For The Coding Of Pitch
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Book Synopsis Coincidence Detection in the Cochlear Nucleus : Implications for the Coding of Pitch by : Grace I. Wang
Download or read book Coincidence Detection in the Cochlear Nucleus : Implications for the Coding of Pitch written by Grace I. Wang and published by . This book was released on 2011 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: The spatio-temporal pattern in the auditory nerve (AN), i.e. the temporal pattern of AN fiber activity across the tonotopic axis, provides cues to important features in sounds such as pitch, loudness, and spatial location. These spatio-temporal cues may be extracted by central neurons in the cochlear nucleus (CN) that receive inputs from AN fibers innervating different cochlear regions and are sensitive to their relative timing. One possible mechanism for this extraction is cross-frequency coincidence detection (CD), in which a central neuron converts the degree of cross-frequency coincidence in the AN into a rate response by preferentially firing when its AN inputs across the tonotopic axis discharge in synchrony. We implemented a CD model receiving AN inputs from varying extents of the tonotopic axis, and compared responses of model CD cells with those of single units recorded in the CN of the anesthetized cat. We used Huffman stimuli, which have flat magnitude spectra and a single phase transition, to systematically manipulate the relative timing across AN fibers and to evaluate the sensitivity of model CD cells and CN units to the spatiotemporal pattern of AN discharges. Using a maximum likelihood approach, we found that certain unit types (primary-like-with-notch and some phase lockers) had responses consistent with cross-frequency CD cell. Some of these CN units provide input to neurons in a binaural circuit that process cues for sound localization and are sensitive to interaural level differences. A possible functional role of a cross-frequency CD mechanism in the CN is to increase the dynamic range of these binaural neurons. However, many other CN units had responses more consistent with AN fibers than with CD cells. We hypothesized that CN units resembling cross-frequency CD cells (as determined by their responses to Huffman stimuli) would convert spatio-temporal cues to pitch in the AN into rate cues that are robust with level. We found that, in response to harmonic complex tones, cross-frequency CD cells and some CN units (primary-like-with-notch and choppers) maintained robust rate cues at high levels compared to AN fibers, suggesting that at least some CN neurons extend the dynamic range of rate representations of pitch beyond that found in AN fibers. However, there was no obvious correlation between robust rate cues in individual CN units and similarity to cross-frequency CD cells as determined by responses to Huffman stimuli. It is likely that a model including more realistic inputs, membrane channels, and spiking mechanism, or other mechanisms such as lateral inhibition or spatial and temporal summation over spatially distributed inputs would provide insight into the neural mechanisms that give rise to the robust rate cues observed in some CN units.
Download or read book Pitch written by Christopher J. Plack and published by Springer Science & Business Media. This book was released on 2006-04-20 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although pitch has been considered an important area of auditory research since the birth of modern acoustics in the 19th century, some of the most significant developments in our understanding of this phenomenon have occurred comparatively recently. In auditory physiology, researchers are now identifying cells in the brainstem and cortex that may be involved in the derivation of pitch. In auditory psychophysics, dramatic developments over the last few years have changed our understanding of temporal pitch mechanisms, and of the roles of resolved and unresolved harmonics. Computational modeling has provided new insights into the biological algorithms that may underlie pitch perception. Modern brain imaging techniques have suggested possible cortical locations for pitch mechanisms. This timely volume brings together the more recent findings, while emphasizing their relation to the discoveries of the past. It brings together insights from several different methodological areas: physiology, psychophysics, comparative, imaging, etc., in addressing a single scientific problem. Pitch perception can be regarded as one of the main problems of hearing, and the multidisciplinary approach of the book provides a valuable reference source for graduate students and academics.
Book Synopsis The Neural Code of Pitch and Harmony by : Gerald D. Langner
Download or read book The Neural Code of Pitch and Harmony written by Gerald D. Langner and published by Cambridge University Press. This book was released on 2015-04-23 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introducing the neuronal mechanisms of pitch and harmony, and the role of neuronal oscillations for brain and mind, this unique title demonstrates that musical pitch is a temporal and not a spectral phenomenon, and musical harmony is not a cultural heritage but a mathematical necessity based on neurobiological mechanisms.
Book Synopsis The Central Auditory System by : Günter Ehret
Download or read book The Central Auditory System written by Günter Ehret and published by Oxford University Press, USA. This book was released on 1997 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a graduate-level text on the neurobiology of hearing, covering the structure and function of the central auditory pathway of all mammals.
Book Synopsis The Neural Code of Pitch and Harmony by : Gerald D. Langner
Download or read book The Neural Code of Pitch and Harmony written by Gerald D. Langner and published by Cambridge University Press. This book was released on 2015-04-23 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: Harmony is an integral part of our auditory environment. Resonances characterised by harmonic frequency relationships are found throughout the natural world and harmonic sounds are essential elements of speech, communication and, of course, music. Providing neurophysiological data and theories that are suitable to explain the neural code of pitch and harmony, the author demonstrates that musical pitch is a temporal phenomenon and musical harmony is a mathematical necessity based on neuronal mechanisms. Moreover, he offers new evidence for the role of an auditory time constant for speech and music perception as well as for similar neuronal processing mechanisms of auditory and brain waves. Successfully relating current neurophysiological results to the ancient ideas of Pythagoras, this unique title will appeal to specialists in the fields of neurophysiology, neuroacoustics, linguistics, behavioural biology and musicology as well as to a broader audience interested in the neural basis of music perception.
Book Synopsis Computational Models of the Auditory System by : Ray Meddis
Download or read book Computational Models of the Auditory System written by Ray Meddis and published by Springer Science & Business Media. This book was released on 2010-06-16 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Springer Handbook of Auditory Research presents a series of comprehensive and synthetic reviews of the fundamental topics in modern auditory research. The v- umes are aimed at all individuals with interests in hearing research including advanced graduate students, post-doctoral researchers, and clinical investigators. The volumes are intended to introduce new investigators to important aspects of hearing science and to help established investigators to better understand the fundamental theories and data in fields of hearing that they may not normally follow closely. Each volume presents a particular topic comprehensively, and each serves as a synthetic overview and guide to the literature. As such, the chapters present neither exhaustive data reviews nor original research that has not yet appeared in pe- reviewed journals. The volumes focus on topics that have developed a solid data and conceptual foundation rather than on those for which a literature is only beg- ning to develop. New research areas will be covered on a timely basis in the series as they begin to mature.
Book Synopsis Perceptual Coherence by : Stephen Handel
Download or read book Perceptual Coherence written by Stephen Handel and published by Oxford University Press. This book was released on 2006-05-04 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: The job of any sensory system is to create objects in the world out of the incoming proximal stimulus energy. The energy is neutral; it does not specify the objects itself. Thus, sensory systems must abstract the energy that does specify objects and differentiate it from the noise energy. The perceptual variables that specify objects for both listening and looking become those of contrast and correlated change across space and time, so that perceiving occurs at several spatial and temporal scales in parallel. Given that the perceptual goals and perceptual variables are equivalent, the rules of perceiving will be the same for all senses. The goal of this book is to describe these conceptual similarities and differences between hearing and seeing. Although it is mathematical and conceptually analytical, the book does not make explicit use of advanced mathematical concepts. Each chapter combines information on hearing and seeing, and gives a detailed treatment of a small number of topics. The first three chapters present introductory information, including properties of auditory and visual worlds, how receptive fields are organized to pick out those properties, and whether the receptive fields are optimized to pick up the structure of the sensory world. Each subsequent chapter considers one type of perceptual element: texture, motion, contrast and noise, color, timbre, and object segmentation. Each type of perceptual situation is described as a problem of discovering the correlated energy, and the research presented focuses on how humans manage to perceive given the complicated set of skills required. This book is intended for use in upper-division undergraduate courses in perception and sensation, cognitive psychology, and neuroscience. It will fill the slot between textbooks that cover perception and sensory physiology and neuroscience, and more advanced monographs that cover one sense or topic in detail.
Book Synopsis Translational Perspectives in Auditory Neuroscience by : Kelly L. Tremblay
Download or read book Translational Perspectives in Auditory Neuroscience written by Kelly L. Tremblay and published by Plural Publishing. This book was released on 2012-06-29 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Journal of the Acoustical Society of America by : Acoustical Society of America
Download or read book The Journal of the Acoustical Society of America written by Acoustical Society of America and published by . This book was released on 2004 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Inferior Colliculus by : Jeffery A. Winer
Download or read book The Inferior Colliculus written by Jeffery A. Winer and published by Springer Science & Business Media. This book was released on 2005-12-05 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: Connecting the auditory brain stem to sensory, motor, and limbic systems, the inferior colliculus is a critical midbrain station for auditory processing. Winer and Schreiner's The Inferior Colliculus, a critical, comprehensive reference, presents the current knowledge of the inferior colliculus from a variety of perspectives, including anatomical, physiological, developmental, neurochemical, biophysical, neuroethological and clinical vantage points. Written by leading researchers in the field, the book is an ideal introduction to the inferior colliculus and central auditory processing for clinicians, otolaryngologists, graduate and postgraduate research workers in the auditory and other sensory-motor systems.
Book Synopsis Development of Auditory and Vestibular Systems by : Raymond Romand
Download or read book Development of Auditory and Vestibular Systems written by Raymond Romand and published by Academic Press. This book was released on 2014-05-23 with total page 563 pages. Available in PDF, EPUB and Kindle. Book excerpt: Development of Auditory and Vestibular Systems fourth edition presents a global and synthetic view of the main aspects of the development of the stato-acoustic system. Unique to this volume is the joint discussion of two sensory systems that, although close at the embryological stage, present divergences during development and later reveal conspicuous functional differences at the adult stage. This work covers the development of auditory receptors up to the central auditory system from several animal models, including humans. Coverage of the vestibular system, spanning amphibians to effects of altered gravity during development in different species, offers examples of the diversity and complexity of life at all levels, from genes through anatomical form and function to, ultimately, behavior. The new edition of Development of Auditory and Vestibular Systems will continue to be an indispensable resource for beginning scientists in this area and experienced researchers alike. Full-color figures illustrate the development of the stato-acoustic system pathway Covers a broad range of species, from drosophila to humans, demonstrating the diversity of morphological development despite similarities in molecular processes involved at the cellular level Discusses a variety of approaches, from genetic-molecular biology to psychophysics, enabling the investigation of ontogenesis and functional development
Book Synopsis Binaural Hearing by : Ruth Y. Litovsky
Download or read book Binaural Hearing written by Ruth Y. Litovsky and published by Springer Nature. This book was released on 2021-03-01 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of Binaural Hearing involves studies of auditory perception, physiology, and modeling, including normal and abnormal aspects of the system. Binaural processes involved in both sound localization and speech unmasking have gained a broader interest and have received growing attention in the published literature. The field has undergone some significant changes. There is now a much richer understanding of the many aspects that comprising binaural processing, its role in development, and in success and limitations of hearing-aid and cochlear-implant users. The goal of this volume is to provide an up-to-date reference on the developments and novel ideas in the field of binaural hearing. The primary readership for the volume is expected to be academic specialists in the diverse fields that connect with psychoacoustics, neuroscience, engineering, psychology, audiology, and cochlear implants. This volume will serve as an important resource by way of introduction to the field, in particular for graduate students, postdoctoral scholars, the faculty who train them and clinicians.
Book Synopsis The Computing Dendrite by : Hermann Cuntz
Download or read book The Computing Dendrite written by Hermann Cuntz and published by Springer Science & Business Media. This book was released on 2013-11-23 with total page 519 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Auditory Computation by : Harold L. Hawkins
Download or read book Auditory Computation written by Harold L. Hawkins and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: The auditory system presents many features of a complex computational environment, as well as providing numerous opportunities for computational analysis. This volume represents an overview of computational approaches to understanding auditory system function. The chapters share the common perspective that complex information processing must be understood at multiple levels; that disciplines such as neurobiology, psychophysics, and computer science make vital contributions; and that the end product of computational analysis should be the development of formal models.
Book Synopsis Sound Source Localization by : Richard R. Fay
Download or read book Sound Source Localization written by Richard R. Fay and published by Springer Science & Business Media. This book was released on 2006-05-20 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Springer Handbook of Auditory Research presents a series of compreh- sive and synthetic reviews of the fundamental topics in modern auditory - search. The volumes are aimed at all individuals with interests in hearing research including advanced graduate students, postdoctoral researchers, and clinical investigators. The volumes are intended to introduce new investigators to important aspects of hearing science and to help established investigators to better understand the fundamental theories and data in ?elds of hearing that they may not normally follow closely. Each volume presents a particular topic comprehensively, and each serves as a synthetic overview and guide to the literature. As such, the chapters present neither exhaustive data reviews nor original research that has not yet appeared in peer-reviewed journals. The volumes focus on topics that have developed a solid data and conceptual foundation rather than on those for which a literature is only beginning to develop. New research areas will be covered on a timely basis in the series as they begin to mature.
Book Synopsis Psychoacoustics by : Jennifer J. Lentz
Download or read book Psychoacoustics written by Jennifer J. Lentz and published by Plural Publishing. This book was released on 2023-11-27 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: Psychoacoustics: Auditory Perception of Listeners with Normal Hearing and Hearing Loss, Second Edition provides an overview of the field of psychoacoustics, with a primary focus on auditory perception. The book retains its focus on applications of psychoacoustics to clinical audiology, and its modular organization, with each chapter including relevant information around a specific topic. Within each chapter, acoustics, physiology, and perception by adult listeners with normal hearing and those with hearing loss, as they relate to that topic, are presented. The influence of hearing loss on these general auditory abilities is discussed in every chapter. Components of the book also include the role of psychoacoustics in audiological assessment and treatment. The text is ideal for audiology students who intend on having a clinical career and need an understanding of both normal and impaired auditory perception. It is intended to give students sufficient information to understand how the ear achieves auditory perception, what the capabilities of the ear are, and how hearing loss influences that perception. It also provides students with a foundation for further study in the area and to apply psychoacoustic principles to diagnostic audiology and audiological rehabilitation. New to the Second Edition: * 70 new figures to clarify some points and facilitate students’ understanding of the material * New chapter that focuses exclusively on the perception by individuals wearing hearing aids and cochlear implants * New section on the perceptual consequences of sensorineural hearing loss on everyday listening added to each chapter * Revamped chapter on Psychoacoustics and Advanced Clinical Auditory Assessment now solely addresses elements within diagnostic audiology that are based on psychoacoustics, with added content on tinnitus assessment, automated (Békésy) audiometry, retrocochlear and pseudohypacusis evaluation, and the identification of dead regions * Enhanced focus on inclusivity, such as alternative versions of some demonstrations designed to be more accessible to individuals with hearing loss, and a new section on the contributions of women and BIPOC scientists to the field of psychoacoustics Key Features: * Learning objectives and summaries begin and end each chapter to convey the goals of the text and review student comprehension * Each chapter contains exercises designed to develop critical thinking about psychoacoustics * Chapters include the following: introduction, relevant acoustics, important physiological studies, perception by normal-hearing listeners, and perception by listeners who have sensorineural hearing loss * Emphasis on applied learning for more effective and efficient learning of the material Disclaimer: Please note that ancillary content such as lab exercises are not included as published in the original print version of this book.
Book Synopsis Physiology, Psychoacoustics and Cognition in Normal and Impaired Hearing by : Pim van Dijk
Download or read book Physiology, Psychoacoustics and Cognition in Normal and Impaired Hearing written by Pim van Dijk and published by Springer. This book was released on 2016-04-14 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Symposium on Hearing is a prestigious, triennial gathering where world-class scientists present and discuss the most recent advances in the field of human and animal hearing research. The 2015 edition will particularly focus on integrative approaches linking physiological, psychophysical and cognitive aspects of normal and impaired hearing. Like previous editions, the proceedings will contain about 50 chapters ranging from basic to applied research, and of interest to neuroscientists, psychologists, audiologists, engineers, otolaryngologists, and artificial intelligence researchers.
