Effects of Biofeedback on Control and Generalization of Nasalization in Typical Speakers
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| Title: | Effects of Biofeedback on Control and Generalization of Nasalization in Typical Speakers |
|---|---|
| Language: | English |
| Authors: | Murray, Elizabeth S. Heller, Mendoza, Joseph O., Gill, Simone V., Perkell, Joseph S., Stepp, Cara E. |
| Source: | Journal of Speech, Language, and Hearing Research. Oct 2016 59(5):1025-1034. |
| 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: | 10 |
| Publication Date: | 2016 |
| Sponsoring Agency: | National Institute on Deafness and Other Communication Disorders (NIDCD) |
| Contract Number: | DC012651 |
| Document Type: | Journal Articles Reports - Research |
| Descriptors: | Biofeedback, Vowels, Intonation, Distinctive Features (Language), Phonemes, Acoustics, Measurement Techniques, Regression (Statistics), Predictor Variables, Scores, Articulation (Speech) |
| DOI: | 10.1044/2016_JSLHR-S-15-0286 |
| ISSN: | 1092-4388 |
| Abstract: | Purpose: The purpose of this study was to determine the effects of biofeedback on control of nasalization in individuals with typical speech. Method: Forty-eight individuals with typical speech attempted to increase and decrease vowel nasalization. During training, stimuli consisted of consonant-vowel-consonant (CVC) tokens with the center vowels /a/ or /i/ in either a nasal or nonnasal phonemic context (e.g., /mim/ vs. /bib/), depending on the participant's training group. Half of the participants had access to augmentative visual feedback during training, which was based on a less-invasive acoustic, accelerometric measure of vowel nasalization--the Horii oral-nasal coupling (HONC) score. During pre- and posttraining assessments, acoustically based nasalance was also measured from the center vowels /a/, /i/, /ae/, and /u/ of CVCs in both nasal and nonnasal contexts. Results: Linear regressions indicated that both phonemic contexts (nasal or nonnasal) and the presence of augmentative visual feedback during training were significant predictors for changes in nasalance scores from pre- to posttraining. Conclusions: Participants were able to change the nasalization of their speech following a training period with HONC biofeedback. Future work is necessary to examine the effect of such training in individuals with velopharyngeal dysfunction. |
| Abstractor: | As Provided |
| Entry Date: | 2016 |
| Accession Number: | EJ1119018 |
| Database: | ERIC |
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