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Evidence for Auditory-Motor Impairment in Individuals with Hyperfunctional Voice Disorders

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Title: Evidence for Auditory-Motor Impairment in Individuals with Hyperfunctional Voice Disorders
Language: English
Authors: Stepp, Cara E., Lester-Smith, Rosemary A., Abur, Defne, Daliri, Ayoub, Noordzij, J. Pieter, Lupiani, Ashling A.
Source: Journal of Speech, Language, and Hearing Research. Jun 2017 60(6):1545-1550.
Availability: American Speech-Language-Hearing Association. 2200 Research Blvd #250, Rockville, MD 20850. Tel: 301-296-5700; Fax: 301-296-8580; e-mail: slhr@asha.org; Web site: http://jslhr.pubs.asha.org
Peer Reviewed: Y
Page Count: 6
Publication Date: 2017
Sponsoring Agency: National Institute on Deafness and Other Communication Disorders (NIDCD)
Contract Number: DC015570
DC004663
Document Type: Journal Articles
Reports - Research
Descriptors: Evidence, Voice Disorders, Motor Development, Auditory Tests, Vowels, Incidence, Control Groups, Experimental Groups, Anxiety, Perceptual Motor Learning
DOI: 10.1044/2017_JSLHR-S-16-0282
ISSN: 1092-4388
Abstract: Purpose: The vocal auditory-motor control of individuals with hyperfunctional voice disorders was examined using a sensorimotor adaptation paradigm. Method: Nine individuals with hyperfunctional voice disorders and 9 individuals with typical voices produced sustained vowels over 160 trials in 2 separate conditions: (a) while experiencing gradual upward perturbations in the fundamental frequency ("f[subscript o]") of their auditory feedback (shift-up) and (b) under no auditory perturbation (control). The shift-up condition consisted of 4 ordered (fixed) phases: baseline (no perturbation), ramp (gradual increases in heard "f[subscript o]"), hold (a consistently higher heard "f[subscript o]"), and after-effect (no perturbation). Adaptive responses were defined as the difference in produced "f[subscript o]" during control and shift-up conditions. Results: Adaptive responses were significantly different between groups. Individuals with typical voices generally showed compensatory adaptive responses, with decreased "f[subscript o]" during the ramp and hold phases. Conversely, many individuals with hyperfunctional voice disorders instead displayed the opposite effect by following the direction of the perturbation. When "f[subscript o]" was experimentally increased, speakers further increased their "f[subscript o]". Conclusion: Results indicate that some individuals diagnosed with hyperfunctional voice disorders have disrupted auditory-motor control, suggesting atypical neurological function. These findings may eventually allow for the development of new interventions for hyperfunctional voice disorders.
Abstractor: As Provided
Entry Date: 2017
Accession Number: EJ1147905
Database: ERIC
FullText Links:
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  Data: Evidence for Auditory-Motor Impairment in Individuals with Hyperfunctional Voice Disorders
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  Data: <searchLink fieldCode="AR" term="%22Stepp%2C+Cara+E%2E%22">Stepp, Cara E.</searchLink><br /><searchLink fieldCode="AR" term="%22Lester-Smith%2C+Rosemary+A%2E%22">Lester-Smith, Rosemary A.</searchLink><br /><searchLink fieldCode="AR" term="%22Abur%2C+Defne%22">Abur, Defne</searchLink><br /><searchLink fieldCode="AR" term="%22Daliri%2C+Ayoub%22">Daliri, Ayoub</searchLink><br /><searchLink fieldCode="AR" term="%22Noordzij%2C+J%2E+Pieter%22">Noordzij, J. Pieter</searchLink><br /><searchLink fieldCode="AR" term="%22Lupiani%2C+Ashling+A%2E%22">Lupiani, Ashling A.</searchLink>
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  Data: <searchLink fieldCode="SO" term="%22Journal+of+Speech%2C+Language%2C+and+Hearing+Research%22"><i>Journal of Speech, Language, and Hearing Research</i></searchLink>. Jun 2017 60(6):1545-1550.
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  Data: American Speech-Language-Hearing Association. 2200 Research Blvd #250, Rockville, MD 20850. Tel: 301-296-5700; Fax: 301-296-8580; e-mail: slhr@asha.org; Web site: http://jslhr.pubs.asha.org
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  Data: 10.1044/2017_JSLHR-S-16-0282
– Name: ISSN
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  Data: 1092-4388
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Purpose: The vocal auditory-motor control of individuals with hyperfunctional voice disorders was examined using a sensorimotor adaptation paradigm. Method: Nine individuals with hyperfunctional voice disorders and 9 individuals with typical voices produced sustained vowels over 160 trials in 2 separate conditions: (a) while experiencing gradual upward perturbations in the fundamental frequency ("f[subscript o]") of their auditory feedback (shift-up) and (b) under no auditory perturbation (control). The shift-up condition consisted of 4 ordered (fixed) phases: baseline (no perturbation), ramp (gradual increases in heard "f[subscript o]"), hold (a consistently higher heard "f[subscript o]"), and after-effect (no perturbation). Adaptive responses were defined as the difference in produced "f[subscript o]" during control and shift-up conditions. Results: Adaptive responses were significantly different between groups. Individuals with typical voices generally showed compensatory adaptive responses, with decreased "f[subscript o]" during the ramp and hold phases. Conversely, many individuals with hyperfunctional voice disorders instead displayed the opposite effect by following the direction of the perturbation. When "f[subscript o]" was experimentally increased, speakers further increased their "f[subscript o]". Conclusion: Results indicate that some individuals diagnosed with hyperfunctional voice disorders have disrupted auditory-motor control, suggesting atypical neurological function. These findings may eventually allow for the development of new interventions for hyperfunctional voice disorders.
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