Vowel production with and without auditory feedback in children with cochlear implants

2006 ◽  
Vol 119 (5) ◽  
pp. 3341-3341
Author(s):  
Sneha V. Bharadwaj ◽  
Amanda G. Graves
Keyword(s):  
Cochlear Implants ◽  
Auditory Feedback ◽  
Vowel Production

Interactions of speaking condition and auditory feedback on vowel production in postlingually deaf adults with cochlear implants

2007 ◽  
Vol 121 (6) ◽  
pp. 3790 ◽  
Author(s):  
Lucie Ménard ◽  
Marek Polak ◽  
Margaret Denny ◽  
Ellen Burton ◽  
Harlan Lane ◽  
...  
Keyword(s):  
Cochlear Implants ◽  
Auditory Feedback ◽  
Vowel Production ◽  
Deaf Adults

scholarly journals Abnormal Speech Motor Control in Individuals with 16p11.2 Deletions

2017 ◽  
Author(s):  
Carly Demopoulos ◽  
Hardik Kothare ◽  
Danielle Mizuiri ◽  
Jennifer Henderson-Sabes ◽  
Brieana Fregeau ◽  
...  
Keyword(s):  
Motor Control ◽  
Auditory Feedback ◽  
Spectral Peak ◽  
Motor Deficits ◽  
Speech Motor Control ◽  
Sensorimotor Adaptation ◽  
Speech And Language ◽  
Vowel Production ◽  
Identity Changes ◽  
Speech Motor

AbstractSpeech and motor deficits are highly prevalent (>70%) in individuals with the 600 kb BP4-BP5 16p11.2 deletion; however, the mechanisms that drive these deficits are unclear, limiting our ability to target interventions and advance treatment. This study examined fundamental aspects of speech motor control in participants with the 16p11.2 deletion. To assess capacity for control of voice, we examined how accurately and quickly subjects changed the pitch of their voice within a trial to correct for a transient perturbation of the pitch of their auditory feedback. When compared to sibling controls, 16p11.2 deletion carriers show an over-exaggerated pitch compensation response to unpredictable mid-vocalization pitch perturbations. We also examined sensorimotor adaptation of speech by assessing how subjects learned to adapt their sustained productions of formants (speech spectral peak frequencies important for vowel identity), in response to consistent changes in their auditory feedback during vowel production. Deletion carriers show reduced sensorimotor adaptation to sustained vowel identity changes in auditory feedback. These results together suggest that 16p11.2 deletion carriers have fundamental impairments in the basic mechanisms of speech motor control and these impairments may partially explain the deficits in speech and language in these individuals.

Vowel production in Swedish children with cochlear implants

2006 ◽  
Vol 120 (5) ◽  
pp. 3349-3349
Author(s):  
Tina Ibertsson ◽  
Birgitta Sahlen ◽  
Anders Lofqvist
Keyword(s):  
Cochlear Implants ◽  
Vowel Production

Development of vowel production in young children with cochlear implants.

2010 ◽  
Vol 127 (3) ◽  
pp. 2018-2018
Author(s):  
Kyoko Nagao ◽  
Allegra Cornaglia ◽  
H. Timothy Bunnell
Keyword(s):  
Young Children ◽  
Cochlear Implants ◽  
Vowel Production

Effects of auditory feedback deprivation on non-native French vowels produced by children with cochlear implants

2007 ◽  
Vol 5 (4) ◽  
pp. 274-282 ◽  
Author(s):  
Sneha V. Bharadwaj ◽  
William F. Katz ◽  
Emily A. Tobey
Keyword(s):  
Cochlear Implants ◽  
Auditory Feedback

A Comparison of Vowel Production by Children with Multichannel Cochlear Implants or Tactile Aids: Perceptual Evidence

1997 ◽  
Vol 18 (4) ◽  
pp. 307-315 ◽  
Author(s):  
David J. Ertmer ◽  
Karen Iler Kirk ◽  
Susan Todd Sehgal ◽  
Allyson I. Riley ◽  
Mary Joe Osberger
Keyword(s):  
Cochlear Implants ◽  
Vowel Production ◽  
Perceptual Evidence ◽  
Tactile Aids

scholarly journals Vowel generalization and its relation to adaptation during perturbations of auditory feedback

2017 ◽  
Vol 118 (5) ◽  
pp. 2925-2934 ◽  
Author(s):  
Kevin J. Reilly ◽  
Chelsea Pettibone
Keyword(s):  
Auditory Feedback ◽  
Noise Correlation ◽  
Vowel Production ◽  
Masking Noise ◽  
Sensorimotor Representations

Repeated perturbations of auditory feedback during vowel production elicit changes not only in the production of the perturbed vowel (adaptation) but also in the production of nearby vowels that were not perturbed (generalization). The finding that adaptation generalizes to other, nonperturbed vowels suggests that sensorimotor representations for vowels are not independent; instead, the goals for producing any one vowel may depend in part on the goals for other vowels. The present study investigated the dependence or independence of vowel representations by evaluating adaptation and generalization in two groups of speakers exposed to auditory perturbations of their first formant (F1) during different vowels. The speakers in both groups who adapted to the perturbation exhibited generalization in two nonperturbed vowels that were produced under masking noise. Correlation testing was performed to evaluate the relations between adaptation and generalization as well as between the generalization in the two nonperturbed vowels. These tests identified significant coupling between the F1 changes of adjacent vowels but not nonadjacent vowels. The pattern of correlation findings indicates that generalization was due in part to feedforward representations that are partly shared across adjacent vowels, possibly to maintain their acoustic contrast. NEW & NOTEWORTHY Speech adaptations to alterations, or perturbations, of auditory feedback have provided important insights into sensorimotor representations underlying speech. One finding from these studies that is yet to be accounted for is vowel generalization, which describes the effects of repeated perturbations to one vowel on the production of other vowels that were not perturbed. The present study used correlation testing to quantify the effects of changes in a perturbed vowel on neighboring (i.e., similar) nonperturbed vowels. The results identified significant correlations between the changes of adjacent, but not nonadjacent, vowel pairs. This finding suggests that generalization is partly a response to adaptation and not solely due to the auditory perturbation.

scholarly journals Intact Correction for Self-Produced Vowel Formant Variability in Individuals With Cerebellar Ataxia Regardless of Auditory Feedback Availability

2021 ◽  
pp. 1-14
Author(s):  
Benjamin Parrell ◽  
Richard B. Ivry ◽  
Srikantan S. Nagarajan ◽  
John F. Houde
Keyword(s):  
Feedback Control ◽  
Cerebellar Ataxia ◽  
Auditory Feedback ◽  
Cerebellar Degeneration ◽  
Vowel Production ◽  
Compensatory Response ◽  
Vowel Context ◽  
Somatosensory Feedback ◽  
Vowel Formant ◽  
Masking Noise

Purpose Individuals with cerebellar ataxia (CA) caused by cerebellar degeneration exhibit larger reactive compensatory responses to unexpected auditory feedback perturbations than neurobiologically typical speakers, suggesting they may rely more on feedback control during speech. We test this hypothesis by examining variability in unaltered speech. Previous studies of typical speakers have demonstrated a reduction in formant variability (centering) observed during the initial phase of vowel production from vowel onset to vowel midpoint. Centering is hypothesized to reflect feedback-based corrections for self-produced variability and thus may provide a behavioral assay of feedback control in unperturbed speech in the same manner as the compensatory response does for feedback perturbations. Method To comprehensively compare centering in individuals with CA and controls, we examine centering in two vowels (/i/ and /ɛ/) under two contexts (isolated words and connected speech). As a control, we examine speech produced both with and without noise to mask auditory feedback. Results Individuals with CA do not show increased centering compared to age-matched controls, regardless of vowel, context, or masking. Contrary to previous results in neurobiologically typical speakers, centering was not affected by the presence of masking noise in either group. Conclusions The similar magnitude of centering seen with and without masking noise questions whether centering is driven by auditory feedback. However, if centering is at least partially driven by auditory/somatosensory feedback, these results indicate that the larger compensatory response to altered auditory feedback observed in individuals with CA may not reflect typical motor control processes during normal, unaltered speech production.

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