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Analys av aktivitet i larynx och svalget i stamningsögonblicket: En studie med fiberskopi och elektroglottografi
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.
2019 (Swedish)Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The purpose of this study was to investigate abnormal activity that may occur in the larynx and pharynx in the moment of stuttering, and in which structures this activity can be seen. A secondary purpose was to investigate if fibroscopy can provide a more precise interpretation of electroglottography in stuttering. This was analyzed with electroglottography and fibroscopy in six participants who stutter while reading, describing a picture and speaking spontaneously. The result shows abnormal laryngeal and pharyngeal activity at different levels that can be categorized into the overall categories of contractions, glottal openings and tremors. These types of activity appeared in five of the six participants. The stuttering of two of the participants was assessed to be primarily based in the larynx and pharynx. One participant had a primary stuttering locus in the tongue and lips, and the other three had a mixed locus of stuttering. Different types of abnormal activity as well as multiple-level stuttering locus were often found within participants and within moments of stuttering. A correlation could be seen between self-assessed muscle activity in the throat and presence of abnormal laryngeal and pharyngeal activity. Difficulties using EGG to investigate stuttering locus emerged, as tongue movements appear to result in EGG activity. Fibroscopy provided a more precise interpretation of EGG while investigating stuttering.

Abstract [sv]

Syftet med denna studie var (a) att undersöka huruvida avvikande aktivitet kan förekomma i larynx och svalg i stamningsögonblicket, (b) i vilka strukturer denna kan ses, (c) hur denna aktivitet kan te sig, och (d) om fiberskopi kan ge en säkrare tolkning av EGG vid stamning. Detta undersöktes med hjälp av EGG och fiberskopi hos sex stammande personer vid läsning, bildbeskrivning och spontantal. Resultatet visar avvikande laryngeal och faryngeal aktivitet på olika nivåer som kan kategoriseras i de övergripande kategorierna sammandragningar, glottisöppningar och tremor. Dessa typer av aktivitet förekom hos fem av sex deltagare. Stamningen hos två av deltagarna bedömdes främst utgå från larynx och svalg. En deltagare hade stamning vars lokus främst var tunga och läppar, och övriga tre hade blandad stamningslokus. Flera olika typer av avvikande aktivitet förekom ofta hos enskilda deltagare och inom ett och samma stamningstillfälle. Lokus kunde även ligga på flera nivåer i talröret inom ett stamningstillfälle.  Ett samband kunde ses mellan självskattad muskelaktivitet i halsen vid stamning och förekomst av avvikande laryngeal och faryngeal aktivitet. Svårigheter med användning av EGG för att undersöka stamningslokus framkom, då tungrörelser förefaller kunna ge utslag i EGG. Fiberskopi bedöms ge en säkrare tolkning av EGG vid stamning.

Place, publisher, year, edition, pages
2019.
Series
Magisterarbete i logopedi ; 163
Keywords [sv]
stamning, larynx, farynx, EGG, fiberskopi, tremor, glottisöppning, sammandragning
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-374276OAI: oai:DiVA.org:uu-374276DiVA, id: diva2:1280514
Subject / course
Speech and Language Pathology
Educational program
Degree of Master of Science in Speech and Language Pathology
Supervisors
Examiners
Available from: 2019-01-22 Created: 2019-01-19 Last updated: 2019-01-22Bibliographically approved

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The full text will be freely available from 2020-01-31 09:37
Available from 2020-01-31 09:37

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