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Full Description
The present book arose from a conference on Speech Motor Dynamics in Stuttering held at the University of Nijmegen in Nijmegen, the Netherlands from June 13-15, 1985. The conference was organized on the occasion of the 25th anniversary of the Department of Speech Pathology of the University Hospital. The topic selected for the conference and now developed within this book, Speech Motor Dynamics in Stuttering, was judged to be particularly timely and especially relevant to an emerging body of work on stuttering. For over ten years there had been no confer ences that brought together researchers who have worked on stuttering from perspectives stressing the dynamics of motor processes. Yet during that time major changes have occurred in research on stuttering which signify a growing level of scientific maturity within the problem area. This book attempts to character ize a number of major trends in research on speech motor processes in stuttering. There has been a lessening in the postulation of causes of stuttering in the form of global hypothesis which have tenuous ties to empi rical data. New ideas about speech motor processes in stuttering have been stimulated by researchers who have done productive work on more general issues of motor control. This book therefore directs our attention to a number of models of speech production which are relevant to stuttering.
Contents
One Historical Review.- 1 Laryngeal and articulatory behavior in stuttering: past and future.- Two Models in Speech Motor Production.- Overview.- 2 Action theory as a description of the speech process.- 3 Programming of speech and nonspeech motor activity.- 4 Multilevel control model for speech motor activity.- Three Methods in Research in Speech Motor Production.- Overview.- 5 Methodological aspects of simultaneous measurements: limitations and possibilities.- 6 Acoustical analysis and physiological parameters.- 7 Studying young stutterers' speech productions: a procedural challenge.- 8 Measuring stutterers' dynamical vocal tract characteristics by X-ray microbeam pallet tracking.- 9 Brain electrical activity mapping: applications to vocal motor control disorders.- 10 Dynamic characteristics of vocal frequency tracking in stutterers and nonstutterers.- Four Research on Coordination and Timing of Speech Motor Processes.- Overview.- 11 Labial and laryngeal reaction times of stutterers and nonstutterers.- 12 Programming and initiation of speech utterances in stuttering.- 13 Coordination of prephonatory events in mild and severe stutterers.- 14 Coordination of laryngeal and supralaryngeal behavior in stutterers.- 15 Subgrouping young stutterers: a physiological perspective.- 16 Aerodynamic functions in fluent speech utterances of stutterers and nonstutterers in different speech conditions.- 17 A speech motor control perspective on stuttering: preliminary observations.- 18 Labial coarticulation in stutterers and normal speakers: a pilot study.- 19 Acoustic and electrophysiologic correlates of stuttering and early developmental reactions.- Five Acoustic Analysis of Speech Production.- Overview.- 20 Perceptual and acoustic evaluation of stuttering therapy.- 21 Voice onsetabruptness in stutterers before and after therapy.- 22 A comprehensive computer program for facilitating fluency in stutterers.- 23 Articulatory rate, stuttering and speech motor control.- 24 Speech rate and syllable durations in stutterers and nonstutterers.- 25 The effects of fluency-inducing conditions on the variability in the duration of laryngeal movements during stutterers' fluent speech.- 26 Duration variations in the fluent speech of stutterers and nonstutterers.- 27 A model of stuttering and the production of speech under delayed auditory feedback conditions.- 28 Factors affecting fluency in stutterers when speaking under altered auditory feedback.- 29 Acoustic analysis of repetitions in stutterers' speech.- 30 Coarticulation and stuttering: an acoustic and electropalatographic study.- 31 Stuttering as a prosodic disturbance: a link between speech execution and emotional processes.- Author Index.
