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Hur påverkas stammande personers talflyt av förstärkt hörselåterkoppling?
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Logopedi.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Logopedi.
2010 (Swedish)Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
Abstract [sv]

I denna studie undersöktes effekten av förstärkt hörselåterkoppling (enhanced auditoryfeedback, EAF) på observerbar stamning och upplevd känsla av talflyt hos vuxna personer som stammar. Så vitt vi vet finns inga tidigare studier av effekten av förstärkt hörselåterkoppling vid stamning. Mycket forskning finns dock på andra typer av hörselåterkoppling, som exempelvis frekvensförändrad hörselåterkoppling (frequencyaltered feedback, FAF), där man sett positiv effekt på talflytet hos personer som stammar. Deltagargruppen bestod av 14 personer i åldrarna 20-43 år, som stammade. Deltagarna fick läsa högt under olika förhållanden av hörselåterkoppling, de olika förhållandena som testades var förstärkt hörselåterkoppling och FAF mot normal hörselåterkoppling. Testtillfällena spelades in och procent stammade stavelser (%SS) räknades för en objektiv bedömning av talflytet. Deltagarna fick också skatta hur de upplevde talflytet under de olika förhållandena. Såväl observerbar stamning som skattning av upplevt talflyt visade en positiv tendens vid både förstärkt hörselåterkoppling och FAF. Förändringen var statistiskt signifikant för observerbar stamning vid FAF (p = 0,002), och för skattningen av upplevt talflyt vid både förstärkthörselåterkoppling (p = 0,0053) och FAF (p = 0,021). Att förändringen i observerbarstamning vid förstärkt hörselåterkoppling inte var statistiskt signifikant (p = 0,117) kanbero på relativt låg power hos studien, särskilt som två deltagare inte uppvisade någon stamning alls i testsituationen. De positiva resultaten gällande skattningen samt de positiva tendenserna i observerbar stamning (%SS) i denna studie motiverar fortsatt forskning om förstärkt hörselåterkoppling vid stamning.

Abstract [en]

This study examined the effects of enhanced auditory feedback (EAF) on observable stuttering and perceived sense of speech fluency in adults who stutter. To our knowledge there are no previous studies on the effects of EAF on stuttering. There are numerous studies on other types of altered auditory feedback, such as frequency altered feedback (FAF), in which a positive effect on speech fluency in people who stutter has been shown. The group of participants consisted of 14 people aged from 20-43 years, who stuttered. Participants were asked to read aloud during different conditions of auditory feedback, the different conditions tested were EAF and FAF compared to normal auditory feedback. The testing was recorded and the percentage of syllables stuttered (% SS) was calculated for an objective assessment of speech fluency. Participants were also asked to estimate how they perceived their speech fluency during the various conditions. Both observable stuttering and the ratings of experienced speech fluency showed a positive trend in both EAF and FAF. The change was statistically significant for observable stuttering in FAF (p = 0.002), and for the estimation of experienced speech fluency in both EAF (p = 0.0053) and FAF (p = 0.021). The lack of statistical significance for the change in observable stuttering during EAF (p = 0.117) may be due to relatively low power of the study, particularly as two participants showed no stuttering at all during the test conditions. The positive results regarding the estimation and the positive trends of observable stuttering (% SS) in this study motivates for further research on the effects of enhanced auditory feedback on stuttering.

Place, publisher, year, edition, pages
2010. , p. 28
Keywords [en]
stuttering, enhanced auditory feedback, frequency altered feedback
Keywords [sv]
stamning, förstärkt hörselåterkoppling, frekvensförändrad hörselåterkoppling
National Category
Otorhinolaryngology
Identifiers
URN: urn:nbn:se:uu:diva-141200Local ID: 029OAI: oai:DiVA.org:uu-141200DiVA, id: diva2:385235
Uppsok
Medicine
Supervisors
Examiners
Available from: 2011-01-11 Created: 2011-01-11 Last updated: 2011-01-11Bibliographically approved

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