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The Effects Of Delayed Auditory Feedback On The Speech Kinematics Of Normal Speakers Microform
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Author :Kim J. Spylo Publisher :National Library of Canada = Bibliothèque nationale du Canada ISBN 13 :9780612286672 Total Pages :190 pages Book Rating :4.2/5 (866 download)
Book Synopsis The Effects of Delayed Auditory Feedback on the Speech Kinematics of Normal Speakers [microform] by : Kim J. Spylo
Download or read book The Effects of Delayed Auditory Feedback on the Speech Kinematics of Normal Speakers [microform] written by Kim J. Spylo and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1997 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study was designed to examine the effects of delayed auditory feedback (DAF) on the speech kinematics of normal speakers. The procedure involved collecting jaw, upper and lower lip kinematics for closing gestures, using strain gauges during 4 different DAF conditions (0, 40, 80, and 120 msec delay). An acoustic analysis of utterance duration revealed that rate of speech became slower across increases in DAF. The main kinematic findings were that movement time, percent time to peak velocity, and the number of velocity peaks increased with increases in DAF. Additionally, peak velocity and the peak velocity/maximum displacement ratio decreased with increases in DAF. Maximum displacement showed a consistent increase across DAF settings for jaw movements but not for upper and lower lip movements. These kinematic results appear to be in general agreement with previous kinematic studies of slow speech.
Book Synopsis The Effects of Delayed Auditory Feedback on the Speech Kinematics of Normal Speakers by :
Download or read book The Effects of Delayed Auditory Feedback on the Speech Kinematics of Normal Speakers written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Delayed Auditory Feedback on the Speech Kinematics of Normal and Parkinsonian Speakers by :
Download or read book The Effects of Delayed Auditory Feedback on the Speech Kinematics of Normal and Parkinsonian Speakers written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Delayed Auditory Feedback on the Second Formant Transitions of Normal Speakers by : Trixine Ratliff Peart
Download or read book The Effects of Delayed Auditory Feedback on the Second Formant Transitions of Normal Speakers written by Trixine Ratliff Peart and published by . This book was released on 1985 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Delayed Auditory Feedback on the Bereitschaftspotential by : Jennifer Lynn Johnson
Download or read book Effects of Delayed Auditory Feedback on the Bereitschaftspotential written by Jennifer Lynn Johnson and published by . This book was released on 2007 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study examined the brain electrical activity of normal speakers in a non-delayed auditory feedback (DAF) condition and when experiencing DAF to determine the effect DAF would have on the Bereitschaftspotential (BP). The BP reflects the preparatory state of a person prior to motor execution of an act and can be observed 1500 to 500 ms prior to voluntary movement. The participants in the study included 10 adults with normal speech. Each read a series of 30 sentences, both without DAF and with DAF, while the BP was measured. Results indicate that the BP is present across the scalp in both the control condition and the DAF condition; however, the BP is reduced in the DAF condition. The scalp distribution maps indicate an increased negativity in the left frontal lobe in the DAF condition. These findings suggest that while the brain is engaged in processing current information that has already been initiated, the motor system may not be able to be primed for the next sequential motor event. There is still a need for more research to explore the motor control of speech and the ways altered feedback may disrupt the speech motor control.
Book Synopsis Auditory-motor Integration Influences on Speech Motor Control and Fluency: a Comparison of Normally Fluent Speakers and People who Stutter by : Hee-Cheong Chon
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.
Book Synopsis Adaptation Under Delayed Auditory Feedback in Normal Speakers by : Jamie Umsted Castleberry
Download or read book Adaptation Under Delayed Auditory Feedback in Normal Speakers written by Jamie Umsted Castleberry and published by . This book was released on 1965 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Investigation of Adaptation to the Delayed Auditory Feedback Effect by : Nelson H. Bormann
Download or read book An Investigation of Adaptation to the Delayed Auditory Feedback Effect written by Nelson H. Bormann and published by . This book was released on 1965 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Auditory Modulation During Speech Planning in Stuttering and Nonstuttering Individuals by : Ayoub Daliri
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.
Book Synopsis The Effects of Delayed Auditory Feedback Upon Particular Speech Parameters of Parkinson's Patients, Normal Geriatric Adults, and Normal Young Adults by : Kelye O. Mallonee
Download or read book The Effects of Delayed Auditory Feedback Upon Particular Speech Parameters of Parkinson's Patients, Normal Geriatric Adults, and Normal Young Adults written by Kelye O. Mallonee and published by . This book was released on 1995 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Delayed Auditory Feedback on Speech Rates by : Deborah Jean Camp
Download or read book The Effects of Delayed Auditory Feedback on Speech Rates written by Deborah Jean Camp and published by . This book was released on 1974 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Delayed Auditory Feedback Stress and Failure Stress on Selected Measures of Speech, Language, and Problem Solving Performance in College Students by : Diana Elizabeth Jensen
Download or read book The Effects of Delayed Auditory Feedback Stress and Failure Stress on Selected Measures of Speech, Language, and Problem Solving Performance in College Students written by Diana Elizabeth Jensen and published by . This book was released on 1975 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Delayed Auditory Feedback on the Repetition of Speech Sounds by : Richard Allen Chase
Download or read book Effect of Delayed Auditory Feedback on the Repetition of Speech Sounds written by Richard Allen Chase and published by . This book was released on 1958 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Auditory Feedback on Articulation in Normal Speakers and Speakers who Stutter by : Dorothy E. Ross
Download or read book The Effects of Auditory Feedback on Articulation in Normal Speakers and Speakers who Stutter written by Dorothy E. Ross and published by . This book was released on 2000 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Whispered and Normal Practice on Reactions to Delayed Auditory Feedback by : Adine Ruth Panitch
Download or read book The Effects of Whispered and Normal Practice on Reactions to Delayed Auditory Feedback written by Adine Ruth Panitch and published by . This book was released on 1973 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Linguistic Experiment in Delayed Auditory Feedback by : Donald Leroy Baker
Download or read book A Linguistic Experiment in Delayed Auditory Feedback written by Donald Leroy Baker and published by . This book was released on 1973 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Comparison of the Effects of Delayed Auditory Feedback on Speech and Key Tapping by : Richard Allen Chase
Download or read book A Comparison of the Effects of Delayed Auditory Feedback on Speech and Key Tapping written by Richard Allen Chase and published by . This book was released on 1958 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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