Download or read book An investigation of disfluency differences in the speech of normal speakers and stutterers under two different auditory feedback conditions written by William Charles Francis and published by . This book was released on 1973 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Investigation of Disfluency Differences in the Speech of Normal Speakers and Stutters Under Two Different Auditory Feedback Conditions written by William Charles Francis and published by . This book was released on 1973 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Auditory motor Integration Influences on Speech Motor Control and Fluency a Comparison of Normally Fluent Speakers and People who Stutter written by Hee-Cheong Chon and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall purpose of this dissertation was to identify the effects of delayed auditory feedback (DAF) on speech motor stability and speech fluency in normally fluent adults (PWNS) and to compare them with effects on adults who exhibit persistent stuttering. If the auditory processing influences differently the two groups, it might shed light on the basic role of auditory-to-motor integration in speech production. Differences in auditory feedback dependency were also expected between normally fluent individuals who are highly susceptible to DAF and normally fluent individuals who are minimally affected by DAF. Three studies were conducted to (I) subgroup 62 normally fluent males and females based on their responses to DAF during spontaneous conversational speaking and reading tasks, (II) compare responses to DAF between 15 normally fluent adults who showed high stuttering-like disfluencies (SLD) under DAF (High-SLD group), 15 normally fluent adults who showed low SLD under DAF (Low-SLD group), and 15 adults who stutter, and (III) compare the specific effects of DAF on speech motor stability and movement patterns (lower-lip movement) in 11 normally fluent adults versus 11 adults who stutter. Study I revealed that normally fluent participants, as a group, increased the amount of SLD and speech errors (SE), and decreased articulation rate (AR) when speaking under DAF relative to speaking under amplified non-delayed condition (aNAF). Sex had a limited differential effect on other disfluencies (OD) and AR whereas task effects were seen in OD, SE, and AR. Neither sex nor task, however, did influence SLD. Three subgroups, Low, Middle, and High Responders were identified. There were clear differences between the Low and High Responders in that the Low Responders exhibited smaller numbers of SLD and SE as well as faster AR than the High Responders. The Middle Responders revealed task dependency, showing different responses than those exhibited by the Low and High Responders. The results of Study II showed that people who stutter did not reduce SLD counts under DAF condition, a finding that deviates from reports of previous studies. PWS also exhibited higher mean number of SLD than the normally fluent Low-SLD group but similar to that of normally fluent High-SLD group. For all groups, the number of SE was higher and AR was slower under DAF than aNAF. PWS showed larger individual variability in responses to aNAF compared to natural feedback conditions in that some PWS reduced SLD under aNAF condition. Study III revealed significant difference between PWS and PWNS in speech kinematic stabilities, showing that PWS exhibited higher spatio-temporal index (i.e., lower speech motor stability) than PWNS across auditory feedback conditions in four utterance stimuli. PWS, however, yielded higher speech movement stability under aNAF and 25ms-DAF in longer stimuli compared to natural feedback condition. There was no group difference in movement displacement and velocity for opening-closing sequential movements but the patterns were different in each group. PWNS showed lower displacement and velocity under aNAF and DAF compared to natural feedback condition for both opening and closing movements whereas PWS showed higher displacement under DAF than aNAF condition and higher velocity under nNAF than 25ms-DAF. Normally fluent people showed shorter movement duration and faster articulation rate than PWS across auditory feedback and stimuli. This dissertation study has demonstrated different influences of auditory feedback on speech motor control in normally fluent adults and adults who stutter. In both groups, individual variability was obvious. In normally fluent adults, diverse responses to DAF could be explained with different auditory feedback dependency for ongoing speech articulatory production. PWS were more dependent on auditory feedback for speech production, and auditory-to-motor integration under aNAF and short delay feedback conditions helped them to improve speech motor stability.
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1978 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Auditory Modulation During Speech Planning in Stuttering and Nonstuttering Individuals written by Ayoub Daliri and published by . This book was released on 2015 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stuttering is associated with atypical structural and functional connectivity among sensorimotor brain areas. However, it remains entirely unknown which specific mechanisms of sensorimotor control are affected by these neurological differences. In the program of research described here, I used a novel experimental paradigm and electroencephalographic (EEG) recordings to study motor-to-sensory interactions during speech movement planning in stuttering versus nonstuttering speakers. Experiment 1 investigated whether stuttering adults are deficient in modulating the auditory system prior to speech initiation. Auditory modulation was examined by recording auditory evoked potentials in response to probe tones presented during movement planning in a delayed-response speaking condition as compared with no-speaking control conditions. Findings indicated that stuttering speakers did not show the modulation of auditory processing (reflected in reduced amplitude of the N1 component) that was observed in nonstuttering speakers. This finding raised the question whether stuttering individuals have problems specifically with generating or evaluating a planning-related efference copy signal that can be used to predict upcoming self-generated sensory inputs or, more generally, with using any available information to make sensory predictions. In Experiment 2, probe tones were therefore delivered while participants anticipated either self-producing speech or hearing their own pre-recorded speech played back and in a control condition without auditory input. Results showed that auditory modulation differed between stuttering and normally fluent adults in both conditions with predictable auditory input. Experiment 3 was designed to start exploring the functional significance of pre-speech auditory modulation in general, and the functional implications of stuttering speakers' lack of modulation. Participants in this experiment completed a sensorimotor adaptation task with formant-shifted auditory feedback, and the results served to estimate each speaker's reliance on auditory feedback. In a separate session, pre-speech auditory modulation was again assessed by means of probe tones, but this time N1 modulation relative to a no-speaking control condition was quantified both in a condition that allowed typical reliance on auditory feedback (non-delayed auditory feedback; NAF) and in a condition that did not allow reliance on auditory feedback (delayed auditory feedback; DAF). Results revealed that (a) stuttering speakers showed only limited adaptation to formant-shifted auditory feedback; (b) for nonstuttering speakers, DAF caused the amount of pre-speech auditory modulation to be reduced whereas for stuttering speakers, DAF enhanced pre-speech auditory modulation; and (c) across the two groups, there was a relationship between the effect of DAF on pre-speech auditory modulation and reliance on auditory feedback during the adaptation task. These studies demonstrate that stuttering individuals have difficulties with using auditory predictions--both those related to active movement planning and those related to input that is not a consequence of one's own actions--to prime this sensory system with critical importance for speech production. Moreover, stuttering individuals showed not only a lack of modulation of the auditory system under normal speaking conditions (NAF) but also a lower reliance on auditory feedback as revealed here during a sensorimotor adaptation task with formant-shifted auditory feedback. Overall, findings suggest that stuttering is associated with deficits in auditory-motor integration, and that the auditory system may be not appropriately modulated for its role in online feedback control during speech production. I speculate that the inability to use predictive information for appropriately priming task-relevant sensory systems for their role in monitoring articulatory movements may lead to unnecessary and disruptive attempts at correcting ongoing movements. These maladaptive "repairs" may contribute to the fluency breakdowns that form the primary symptoms of stuttering.
Download or read book An Analysis of Stuttering written by Lon L. Emerick and published by . This book was released on 1972 with total page 846 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Neurophysiology of Developmental Stuttering Unraveling the Mysteries of Fluency written by Pierpaolo Busan and published by Frontiers Media SA. This book was released on 2022-02-24 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2006 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stuttering and Cluttering Second Edition written by David Ward and published by Psychology Press. This book was released on 2017-08-15 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stuttering and Cluttering provides a clear, accessible and wide-ranging overview of both the theoretical and clinical aspects of two disorders of fluency: stuttering and cluttering. This edition remains loyal to the idea that stuttering and cluttering can best be understood by first considering various overarching frameworks which can then be expanded upon, and provides a clear position from which to disentangle the often complex interrelationships of these frameworks. The book is divided into two parts, the first of which mainly deals with theory and aetiology, while the second focuses on clinical aspects of assessment, diagnosis and treatment. The book also provides frequent references across Parts I and II to help link the various areas of investigation together. This revised edition of Stuttering and Cluttering reflects the major changes in thinking regarding both theory and therapy that have taken place since the publication of the first edition. As well as those who stutter and clutter, the book will be invaluable for speech language therapy/speech language pathology students, practicing clinicians, psychologists and linguists around the world.
Download or read book Speech Motor Dynamics in Stuttering written by Hermann F.M. Peters and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Studies of Speech Disfluency and Rate of Stutterers and Nonstutterers written by American Speech and Hearing Association and published by . This book was released on 1961 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Methods in Clinical Phonetics written by Martin J. Ball and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is written for the beginning student of communication disorders with a basic understanding of phonetics, or the practising speech-language therapist whose phonetic training may need updating. It introduces the reader to the main areas of phonetics, and the main methods through which the phonetician reduces speech data to a permanent record. The book, then, illustrates the three main approaches to the investigation of spoken language; articulatory, acoustic, and auditory. Further, it describes how impressionistic phonetic transcription through symbolisation differs from instrumental phonetic techniques. For each of these areas of discussion, chapters are provided that examine the general phonetic aspects, followed by chapters that illustrate their application to clinical data. The authors are both phoneticians with experience of investigating both normal and disordered speech through both impressionistic and instrumental means, and this is the first book in this market that describes a whole range of data reduction techniques and illustrates them with data relevant to the student and practitioner of communication disorders.
Download or read book RSA Research Information System written by United States. Rehabilitation Services Administration and published by . This book was released on 1975 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Comparison of Auditory Feedback Development Under Different Daf Conditions in Stutterers and Normal Speakers written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Nature of Stuttering written by Charles Van Riper and published by . This book was released on 1992 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Handbook on Stuttering Seventh Edition written by Oliver Bloodstein and published by Plural Publishing. This book was released on 2021-06-25 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: The revised edition of A Handbook on Stuttering continues its remarkable role as the authoritative, first-line resource for researchers and clinicians who work in the field of fluency and stuttering. Now in its seventh edition, this unique book goes beyond merely updating the text to include coverage of roughly 1,000 articles related to stuttering research and practice that have been published since 2008. This extended coverage integrates the more traditional body of research with evolving views of stuttering as a multi-factorial, dynamic disorder. Comprehensive, clear, and accurate, this text provides evidence-based, practical information critical to understanding stuttering. By thoroughly examining the intricacies of the disorder, A Handbook on Stuttering, Seventh Edition lays the foundation needed before considering assessment and treatment. New to the Seventh Edition: * A completely reorganized table of contents, including two new chapters. * The deletion of approximately 1,000 non-peer-reviewed references from the previous edition to assure discussion of the highest quality evidence on stuttering. * New content on the development of stuttering across the lifespan and assessment. * Given the Handbook’s historic role as a primary reference for allied professionals, a new chapter that addresses myths and misconceptions about stuttering * Expanded coverage on the role of temperament in childhood stuttering * Expanded coverage of brain-based research, genetics, and treatment findings. * A thoroughly updated chapter on conditions under which stuttering fluctuates * Brief tutorial overviews of critical concepts in genetics, neuroimaging, language analysis and other relevant constructs, to better enable reader appreciation of research findings. * A greater selection of conceptual illustrations of basic concepts and findings than in prior editions * Integrated cross-referencing to content across chapters
Download or read book Brain Function written by and published by Univ of California Press. This book was released on 1963 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
