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This volume will cover a variety of topics, including child language development; hearing loss; listening in noise; statistical learning; poverty; auditory processing disorder; cochlear neuropathy; attention; and aging. It will appeal broadly to auditory scientists—and in fact, any scientist interested in the biology of human communication and learning. The range of the book highlights the interdisciplinary series of questions that are pursued using the auditory frequency-following response and will accordingly attract a wide and diverse readership, while remaining a lasting resource for the field.
This volume will cover a variety of topics, including child language development; hearing loss; listening in noise; statistical learning; poverty; auditory processing disorder; cochlear neuropathy; attention; and aging. It will appeal broadly to auditory scientists—and in fact, any scientist interested in the biology of human communication and learning. The range of the book highlights the interdisciplinary series of questions that are pursued using the auditory frequency-following response and will accordingly attract a wide and diverse readership, while remaining a lasting resource for the field.
Written by experts with extensive clinical and scientific experience, this comprehensive textbook presents the state of the art in auditory evoked potentials. Opening chapters explain the nature of electrical fields that generate surface recorded potentials, summarize the imaging modalities that complement evoked potential studies, and review acoustics and instrumentation. Major sections examine the anatomy and physiology of the auditory periphery, brainstem, and cortex and the principles and clinical applications of auditory, myogenic, visual, somatosensory, and vestibular evoked potentials. Chapters present hands-on laboratory exercises and clinical case studies. A full-color insert includes 3D images from multi-channel evoked potentials and functional imaging.
Auditory Brainstem Evoked Potentials: Clinical and Research Applications provides a solid foundation of the theoretical principles of auditory evoked potentials. This understanding is important for both the development of optimal clinical test strategies, and interpretation of test results. Developed for graduate-level audiology students, this comprehensive text aims to build a fundamental understanding of auditory evoked brainstem responses (ABR), and their relationship to normal and impaired auditory function, as well as its various audiologic and neurootologic applications. In addition to covering the classical onset ABR, the book provides a thorough review of sustained brainstem responses elicited by complex sounds, including auditory steady state response (ASSR), envelope following response (EFR), and frequency following response (FFR), and the growing clinical and research applications of these responses. By exploring why certain stimulus manipulations are required to answer specific clinical questions, the author provides the resources needed for students and clinicians to make reasoned decisions about the optimal protocol to use in a given situation. Key Features: * A full chapter devoted to laboratory exercises * Numerous illustrations to help explain key concepts * Description of neural bases underlying amplitude and latency changes * Troubleshooting techniques * End-of-chapter summaries
Objectives The goal of the current study was to investigate the subject-related variations seen in the Frequency Following Response (FFR) in normal hearing listeners. We examined the subject factors of musical experience and gender to determine what, if any, effect these had on FFR amplitudes recorded in response to low frequency pure tone stimuli. Methods Thirty normal hearing adults were recruited as participants in the study. FFRs were recorded for each participant using three stimuli: 250 Hz, 500 Hz, and 1000 Hz pure tones. Participants were grouped based on length of musical training and by gender. Fast Fourier Transform (FFT) analysis was performed on FFR waveforms reflecting brainstem neural representation of temporal fine structure (FFRTFS). Analyses of Variance (ANOVAs) were performed to investigate the effect of stimulus frequency on brainstem neural representation of pitch, and to investigate the effect of musical training and gender on the brainstem neural representation of a 250 Hz pure tone stimulus. Results Significant differences in FFR amplitudes were seen between each stimulus frequency (250, 500, and 1000 Hz), such that larger FFR amplitudes were seen for lower frequency stimuli. For FFRs recorded in response to the 250 Hz stimulus, no significant effects of gender or musicianship were seen. Conclusions Examination of subject-related variability within normal hearing listeners is an important step toward introducing the FFR into the audiology clinic. Further research on the variability in the FFR across the lifespan, in individuals with normal hearing and hearing loss, in varying stages of sleep and attention, is necessary before the FFR can become a clinical tool.
The Auditory Brain and Age-Related Hearing Impairment provides an overview of the interaction between age-related hearing impairments and cognitive brain function. This monograph elucidates the techniques used in the connectome and other brain-network studies based on electrophysiological methods. Discussions of the manifestations of age-related hearing impairment, the causes of degradation of sound processing, compensatory changes in the human brain, and rehabilitation and intervention are included. There is currently a surge in content on aging and hearing loss, the benefits of hearing aids and implants, and the correlation between hearing loss, cognitive decline and early onset of dementia. Given the changing demographics, treatment of age-related hearing impairment need not just be bottom-up (i.e., by amplification and/or cochlear implantation), but also top-down by addressing the impact of the changing brain on communication. The role of age-related capacity for audio-visual integration and its role in assisting treatment have only recently been investigated, thus this area needs more attention.
The Model Rules of Professional Conduct provides an up-to-date resource for information on legal ethics. Federal, state and local courts in all jurisdictions look to the Rules for guidance in solving lawyer malpractice cases, disciplinary actions, disqualification issues, sanctions questions and much more. In this volume, black-letter Rules of Professional Conduct are followed by numbered Comments that explain each Rule's purpose and provide suggestions for its practical application. The Rules will help you identify proper conduct in a variety of given situations, review those instances where discretionary action is possible, and define the nature of the relationship between you and your clients, colleagues and the courts.
In this chapter, recent data on the clinical application of the frequency following response (FFR) in different age groups will be presented. The chapter begins with the importance of using speech sounds in electrophysiological assessments. Then the FFR methodology is presented, giving normative data and the expected responses in different age groups: infants and young children, children and adolescents, and adults and the elderly. Finally, the unique responses of each age group are presented in order to show how this new technology can be an extremely useful tool for diagnosing hearing dysfunction.
Mild traumatic Brain Injury (mTBI or Concussion) is an increasingly common public health issue in sports, military environments, and life in today’s active world. Despite a great deal of study and public attention to this disorder, knowledge about optimal diagnostic, prognostic, and treatment information remains lacking. Neurosensory symptoms have been shown to be the most frequent complications of mTBI in both the acute and chronic setting. Neurosensory Disorders in Mild Traumatic Brain Injury brings together both the basic science work as well as the clinical work in mTBI into one volume to provide a comprehensive examination of the neurosensory issues associated with this disorder. Coverage includes chapters on defining mild Traumatic Brain Injury, neurosensory consequences, neurosensory disorders in clinical practice, and diagnosis and treatment for neurosensory disorders in mTBI. This book is written for clinicians, researchers, residents and students in neurology and neuroscience. Provides a comprehensive examination of the neurosensory issues associated with mild Traumatic Brain Injury and concussion Brings together both the basic science work and the clinical work in mTBI into a single volume Helps clinicians understand the best diagnosis and treatment paths and puts current research into perspective for researchers
There has been substantial progress in understanding the contributions of the auditory forebrain to hearing, sound localization, communication, emotive behavior, and cognition. The Auditory Cortex covers the latest knowledge about the auditory forebrain, including the auditory cortex as well as the medial geniculate body in the thalamus. This book will cover all important aspects of the auditory forebrain organization and function, integrating the auditory thalamus and cortex into a smooth, coherent whole. Volume One covers basic auditory neuroscience. It complements The Auditory Cortex, Volume 2: Integrative Neuroscience, which takes a more applied/clinical perspective.