Investigations of the impact of altered auditory feedback in-the-ear devices on the speech of people who stutter: initial fitting and 4-month follow-up.
BACKGROUND: Self-contained ear-level devices delivering altered auditory feedback (AAF) for the application with those who stutter have only been recently developed. AIMS: The paper examines the first therapeutic application of self-contained ear-level devices in three experiments. The effect of the...
| Publicado en: | International Journal of Language & Communication Disorders Vol. 39; no. 1; pp. 93 - 114 |
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| Autores principales: | , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Wiley-Blackwell
Jan-Mar2004
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=106782181&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106782181 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 13682822 B7U jtl: International Journal of Language & Communication Disorders issn: 13682822 maglogo: Y pubinfo: dt: Jan-Mar2004 vid: 39 iid: 1 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 106782181 106782181 2004162215 10.1080/13682820310001616976 NLM14660188 106782181 ppf: 93 ppct: 21 formats: fmt: @attributes: type: P tig: atl: Investigations of the impact of altered auditory feedback in-the-ear devices on the speech of people who stutter: initial fitting and 4-month follow-up. aug: au: Stuart A Kalinowski J Rastatter MP Saluklaroglu T Dayalu V affil: Stuttering Research Laboratory, Department of Communication Sciences and Disorders, East Carolina University, Greenville, NC 27858-4353; stuarta@mail.ecu.edu sug: subj: Feedback Utilization Fluency Disorders Prevention and Control Perceptual Masking Utilization Adolescence Adult Auditory Perception Child Descriptive Statistics Ear Evaluation Research Female Inferential Statistics Intrarater Reliability kappa Statistic Language Tests Male North Carolina Prospective Studies Repeated Measures Severity of Disability Spearman's Rank Correlation Coefficient Speech Sample Students, College Two-Way Analysis of Variance Videorecording Human Adolescent: 13-18 years Adult: 19-44 years Child: 6-12 years Female Male ab: BACKGROUND: Self-contained ear-level devices delivering altered auditory feedback (AAF) for the application with those who stutter have only been recently developed. AIMS: The paper examines the first therapeutic application of self-contained ear-level devices in three experiments. The effect of the device on the proportion of stuttered syllables and speech naturalness was investigated following initial fitting and at 4 months post-fitting. METHODS & PROCEDURES: Three experiments were undertaken: In Experiment 1, the effect of a self-contained in-the-ear device delivering AAF was investigated with those who stutter during reading and monologue. Two adolescents and five adults who stuttered read and produced monologue with and without a device fit monaurally. The device provided a frequency shift of +500 Hz in combination with a delayed auditory feedback of 60 ms. Custom-made ITC and CIC devices were fabricated for four adults and four youths in Experiment 2. The effect of group (i.e. youth versus adult), time (i.e. initial fitting versus 4-month follow-up), speech task (i.e. reading versus monologue), and device (i.e. present versus absent) on stuttering rate was examined. In Experiment 3, 15 naive listeners rated the speech naturalness of speech produced by the participants in Experiment 2. Speech samples from six conditions were rated: reading and monologue without the device at the initial visit, reading and monologue with the device at the initial visit, and reading and monologue with the device at 4 months. OUTCOMES & RESULTS: In Experiment 1, the proportion of stuttered syllables was significantly (p=0.011) reduced by approximately 90% during reading and 67% during monologue with the device relative to no device. Only a significant main effect of device (p=0.0028) was found in Experiment 2. That is, stuttering rate was significantly reduced with the device in place regardless of speech task or group and remained so 4 months later. In Experiment 3, speech samples generated while wearing the device were judged to be more natural sounding than those without the device (p<0.0001) for reading and monologue with both adults and youths. There was no significant difference between the mean naturalness ratings of speech samples generated during the initial fitting with the device relative to that at 4 months with the device (p>0.05) in all cases except with the youths while engaged in monologue. For that condition, raters judged the speech produced at the initial fitting as more natural. CONCLUSIONS: These findings support the notion that a self-contained in-the-ear device delivering AAF assists those who stutter. With the device in place, stuttering is reduced and speech produced is judged to be more natural than with out the device. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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