Acoustic-Phonetic Approach toward Understanding Neural Processes and Speech Perception

Dawn Burton Koch; Therese J. McGee; Ann R. Bradlow; Nina Kraus

doi:10.1055/s-0042-1748502

Journal of the American Academy of Audiology, Inhaltsverzeichnis

J Am Acad Audiol 1999; 10(06): 304-318
DOI: 10.1055/s-0042-1748502

Original Article

Acoustic-Phonetic Approach toward Understanding Neural Processes and Speech Perception

Authors

Dawn Burton Koch

Department of Communication Sciences and Disorders, Northwestern University, Evanston, Illinois
Therese J. McGee

Department of Communication Sciences and Disorders, Northwestern University, Evanston, Illinois
Ann R. Bradlow

Department of Communication Sciences and Disorders, Northwestern University, Evanston, Illinois
Nina Kraus

Department of Communication Sciences and Disorders, Northwestern University, Evanston, Illinois

Departments of Neurobiology, Physiology, Otolaryngology, and Northwestern University, Evanston, Illinois

Abstract

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Abstract

This review paper describes an “acoustic-phonetic” experimental approach aimed at understanding normal and abnormal speech perception processes from both a behavioral and an electrophysiologic perspective. First, we consider the relevant acoustic characteristics of speech and identify a set of acoustic-phonetic classes that represent the parameters most important for making an acoustic signal sound like speech. Second, we review what is known about the neurophysiologic representation of acoustic-phonetic speech parameters in animal and human subjects. Third, we describe how an acoustic-phonetic approach has been useful in understanding the biologic basis of some auditory learning problems in children and in characterizing the behavioral and neurophysiologic changes resulting from speech-sound training. Finally, we discuss these findings and how they may expand the diagnostic and rehabilitative repertoire of practicing audiologists.

Abbreviations: F₀ = fundamental frequency; F₁, F₂, etc. = first formant, second formant, etc; fMRI = functional magnetic resonance imaging; JND = just noticeable difference; MMN = mismatch negativity

Key Words

Acoustic phonetics - evoked potentials - neurophysiology - speech perception

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Referenzen

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