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Perceptual categorization is fundamental to the brain’s remarkable ability to process large amounts of sensory information and efficiently recognize objects including speech. Perceptual categorization is the neural bridge between lower-level sensory and higher-level language processing. A long line of research on the physical properties of the speech signal as determined by the anatomy and physiology of the speech production apparatus has led to descriptions of the acoustic information that is used in speech recognition (e.g., stop consonants place and manner of articulation, voice onset time, aspiration). Recent research has also considered what visual cues are relevant to visual speech recognition (i.e., the visual counter-parts used in lipreading or audiovisual speech perception). Much of the theoretical work on speech perception was done in the twentieth century without the benefit of neuroimaging technologies and models of neural representation. Recent progress in understanding the functional organization of sensory and association cortices based on advances in neuroimaging presents the possibility of achieving a comprehensive and far reaching account of perception in the service of language. At the level of cell assemblies, research in animals and humans suggests that neurons in the temporal cortex are important for encoding biological categories. On the cellular level, different classes of neurons (interneurons and pyramidal neurons) have been suggested to play differential roles in the neural computations underlying auditory and visual categorization. The moment is ripe for a research topic focused on neural mechanisms mediating the emergence of speech representations (including auditory, visual and even somatosensory based forms). Important progress can be achieved by juxtaposing within the same research topic the knowledge that currently exists, the identified lacunae, and the theories that can support future investigations. This research topic provides a snapshot and platform for discussion of current understanding of neural mechanisms underlying the formation of perceptual categories and their relationship to language from a multidisciplinary and multisensory perspective. It includes contributions (reviews, original research, methodological developments) pertaining to the neural substrates, dynamics, and mechanisms underlying perceptual categorization and their interaction with neural processes governing speech perception.
This volume reviews contemporary developments in the auditory cognitive neuroscience of speech perception, including both behavioral and neural contributions. It serves as an important update on the current state of research in speech perception. The Auditory Cognitive Neuroscience of Speech Perception in Context Lori L. Holt, and Jonathan E. Peelle Subcortical Processing of Speech Sounds Bharath Chandrasekaran, Rachel Tessmer, and G. Nike Gnanateja Cortical Representation of Speech Sounds: Insights from Intracranial Electrophysiology Yulia Oganian, Neal P. Fox, and Edward F. Chang A Parsimonious Look at Neural Oscillations in Speech Perception Sarah Tune, and Jonas Obleser Extracting Language Content From Speech Sounds: The Information Theoretic Approach Laura Gwilliams, and Matthew H. Davis Speech Perception under Adverse Listening Conditions Stephen C. Van Hedger, and Ingrid S. Johnsrude Adaptive Plasticity in Perceiving Speech Sounds Shruti Ullas, Milene Bonte, Elia Formisano, and Jean Vroomen Development of Speech Perception Judit Gervain Interactions Between Audition and Cognition in Hearing Loss and Aging Chad S. Rogers, and Jonathan E. Peelle Dr. Lori Holt is a Professor of Psychology at Carnegie Mellon University and has affiliations with the Center for the Neural Basis of Cognition and the Center for Neuroscience University of Pittsburgh. Dr. Jonathan E. Peelle is a Professor in the Department of Otolaryngology at the Washington University in St. Louis. Dr. Allison Coffin is an Associate Professor in the Department of Integrative Physiology and Neuroscience at Washington State University Vancouver. Dr. Arthur N. Popper is Professor Emeritus and research professor in the Department of Biology at the University of Maryland, College Park. Dr. Richard R. Fay is Distinguished Research Professor of Psychology at Loyola, Chicago.
This handbook provides a comprehensive survey of what is now known about psychological development, from birth to biological maturity, and it highlights how cultural, social, cognitive, neural, and molecular processes work together to yield human behavior and changes in human behavior.
The Routledge Handbook of Second Language Acquisition and Neurolinguistics provides a comprehensive discussion of a wide range of neurocognitive and neurobiological scientific research about learning second or additional languages. It is a one-of-a-kind centralized resource that brings together research that is typically found in disperse publication venues. Eminent global scholars from various disciplines synthesize and cross-fertilize current and past neural research about second language through systematic, in-depth, and timely chapters that discuss cores issues for understanding the neurocognition of second language learning, representation, and processing. Handbook sections provide overviews of extant and emerging neuroscience methods, syntheses of neurocognitive research on second language syntax, morphosyntax, lexicon, phonology, and pragmatics, and up-to-date descriptions of theoretical approaches of the neural basis of second language learning. The volume provides additional sections that synthesize research on a variety of topics including factors that affect the neurocognition of second language, the neural mechanisms underlying second language learning, individual differences in the neurocognition of second language, as well as research on understudied languages and populations, such as sign language, child second language learners, and individuals with aphasia. This handbook will be an indispensable resource to scholars and students across a wide range of disciplines, including those interested in second language acquisition, applied linguistics, cognitive science, psychology, neuroscience, and research methodology. It should facilitate transformative connections between ideas and disciplines and lead to informative and productive paths for future research.
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.
Language learning also implies the acquisition of a set of phonetic rules and prosodic contours which define the accent in that language. While often considered as merely accessory, accent is an essential component of psychological identity as it embodies information on origin, culture, and social class. Speaking with a non-standard (foreign) accent is not inconsequential because it may negatively impact communication and social adjustment. Nevertheless, the lack of a formal definition of accent may explain that, as compared with other aspects of language, it has received relatively little attention until recently. During the past decade there has been increasing interest in the analysis of accent from a neuroscientific perspective. This e-book integrates data from different scientific frameworks. The reader will find fruitful research on new models of accent processing, how learning a new accent proceeds, and the role of feedback on accent learning in healthy subjects. In addition, information on accent changes in pathological conditions including developmental and psychogenic foreign accent syndromes as well as the description of a new variant of foreign accent syndrome is also included. It is anticipated that the articles in this e-book will enhance the understanding of accent as a linguistic phenomenon, the neural networks supporting it and potential interventions to accelerate acquisition or relearning of native accents.
This Color Atlas of Anatomy features full-color photographs of actual cadaver dissections, with accompanying schematic drawings and diagnostic images. The photographs depict anatomic structures with a realism unmatched by illustrations in traditional atlases and show students specimens as they will appear in the dissection lab. Chapters are organized by region in order of standard dissection, with structures presented both in a systemic manner, from deep to surface, and in a regional manner. This edition has additional clinical imaging, including MRIs, CTs, and endoscopic techniques. New graphics include clinically relevant nerve and vessel varieties and antagonistic muscle functions. Many older images have been replaced with new, high-resolution images. Black-and-white dissection photographs have been replaced with color photography. A companion website will include an Image Bank, interactive software (similar to an Interactive Atlas), and full text online.
Spoken language communication is arguably the most important activity that distinguishes humans from nonhuman species. While many animal species communicate and exchange information using sound, humans are unique in the complexity of the information that can be conveyed using speech, and in the range of ideas, thoughts and emotions that can be expressed. Despite the importance of speech communication for the entire structure of human society, there are many aspects of this process that are not fully understood. One problem is that research on speech and language is typically carried out by different groups of scientists working on separate aspects of the underlying functional and neural systems. On the one hand, research from an auditory perspective focuses on the acoustical properties of speech sounds, their representation in the auditory system, and how that representation is used to extract phonetic information. On the other hand, research from psycholinguistic perspectives examines the processes by which representations of meaning are extracted from the acoustic-phonetic sequence, and how these are linked to the construction of higher-level linguistic interpretation in terms of sentences and discourse. Till now, there has been relatively little interaction between speech researchers from these two groups, in spite of a dramatic expansion in recent years of research into the neural bases of auditory and linguistic functions. This book bridges the gap between these two lines of research, recognising that both have the same aims in understanding how the motor gestures of a speaker are transformed to sounds and how those are mapped onto meaning in the comprehension of spoken language. It presents the work of leading researchers specializing in a wide range of topics within speech perception and language processing - along with contributions from key researchers in neuroanatomy and neuro-imaging. This important new work cuts through the traditional boundaries and fosters crossdisciplinary interactions in this important and rapidly developing area of the biological and cognitive sciences.
An integrated overview of hearing and the interplay of physical, biological, and psychological processes underlying it. Every time we listen—to speech, to music, to footsteps approaching or retreating—our auditory perception is the result of a long chain of diverse and intricate processes that unfold within the source of the sound itself, in the air, in our ears, and, most of all, in our brains. Hearing is an "everyday miracle" that, despite its staggering complexity, seems effortless. This book offers an integrated account of hearing in terms of the neural processes that take place in different parts of the auditory system. Because hearing results from the interplay of so many physical, biological, and psychological processes, the book pulls together the different aspects of hearing—including acoustics, the mathematics of signal processing, the physiology of the ear and central auditory pathways, psychoacoustics, speech, and music—into a coherent whole.