master's thesis
Objective and perceptual voice assessment in unilateral vocal fold paralysis

Gabrijela Blatančić (2016)
Sveučilište u Zagrebu
Edukacijsko-rehabilitacijski fakultet
Metadata
TitleObjektivna i perceptivna procjena kvalitete glasa kod osoba s jednostranom paralizom glasnice
AuthorGabrijela Blatančić
Mentor(s)Ana Bonetti (thesis advisor)
Abstract
Ljudi koriste glas svakodnevno u interakciji sa svojom okolinom te je glas, uz svu prisutnu tehnologiju, i dalje najvažnije i neophodno sredstvo komunikacije. Jednostrana paraliza glasnice povezana je sa perceptivnim i akustičkim promjenama glasa koje utječu na kvalitetu života pojedinca. Djelotvornost glasovne terapije za poremećaje glasa uslijed paralize glasnice dokazana je dosadašnjim studijama. Cilj ovog istraživanja je utvrditi glasovne karakteristike kod osoba s jednostranom paralizom glasnice prije i poslije terapije glasa. Procjena glasa uključuje perceptivnu procjenu te objektivnu odnosno akustičku analizu glasa. U istraživanju je sudjelovalo 9 osoba ženskog spola u dobi od 27 do 66 godina. Zvučni zapisi spontanog govora korišteni su za perceptivnu procjenu glasa koja je procijenjena od strane tri stručna klinička logopeda s iskustvom u području patologije glasa. Snimljeni uzorci fonacije analizirani su u programu Praat za akustičku analizu glasa. Dobiveni podaci obrađeni su deskriptivnom statistikom i neparametrijskim testovima. Rezultati istraživanja pokazuju statistički značajne razlike u perceptivnoj procjeni glasa prije i poslije terapije u vidu poboljšanja kvalitete glasa. Prema perceptivnoj procjeni, glas ispitanica poslije terapije bio je normalan ili blago promukao. Razlike su pokazane i na rezultatima akustičke analize glasa. Za vrijednosti shimmera i jittera te su razlike pokazane kao statistički značajne. Dobiveni rezultati perceptivne i objektivne procjene odnosno akustičke analize glasa govore u prilog važnosti glasovne terapije za osobe s jednostranom paralizom glasnice. Važno je napomenuti da je terapija glasa neinvazivan oblik rehabilitacije te je prvi izbor za osobe kojima je poremećaj glasa najteži simptom paralize glasnice.
Keywordsunilateral vocal fold paralysis perceptual evaluation of voice acoustic analysis of voice dysphonia voice therapy.
Parallel title (English)Objective and perceptual voice assessment in unilateral vocal fold paralysis
Committee MembersAna Bonetti (committee chairperson)
Mladen Hedjever (committee member)
Emica Farago (committee member)
GranterSveučilište u Zagrebu
Edukacijsko-rehabilitacijski fakultet
PlaceZagreb
StateCroatia
Scientific field, discipline, subdisciplineSOCIAL SCIENCES
Education/Rehabilitation Sciences
Study programme typeuniversity
Study levelgraduate
Study programmeSpeech and Language Pathology
Academic title abbreviationmag. logoped.
Genremaster's thesis
Language Croatian
Defense date2016-09-12
Parallel abstract (English)
People use their voices in everyday situations and despite all modern technology, voice is still primary and most important medium of communication. Unilateral vocal fold paralysis is associated with changes in perceptual and acoustic voice characteristics and can have a significant impact on patient's quality of life. Objective data regarding the efficacy of voice therapy for unilateral vocal fold paralysis exist. The aim of this study is to determine vocal characteristics in people with unilateral vocal fold paralysis before and after voice therapy. Voice assessment includes perceptual and objective evaluation that is acoustic analysis. This study included 9 female patients aged between 27 and 66. Recordings of conversational speech were used for perceptual evaluation of voice which was assessed by three speech and language therapists experienced in the field of voice pathology. Recorded samples of phonation were analyzed in Praat programme for acoustic analysis of voice. All collected data was processed by descriptive statistics and nonparametric tests. The results of this study show significant difference between perceptual evaluation of voice before and after voice therapy in the form of improved voice quality. According to the perceptual evaluation, voices of all patients was normal or slightly hoarse after therapy. Differences are also found between acoustic analysis before and after voice therapy. For values of shimmer and jitter these differences were statistically significant. The results of the perceptual and objective evaluation, that is acoustic analysis indicate the importance of voice therapy for people with unilateral vocal fold paralysis. It is important to notice that voice therapy is a noninvasive form of rehabilitation and should be the first choice for patients who experience dysphonia as the most severe symptom of unilateral vocal fold paralysis.
Parallel keywords (Croatian)jednostrana paraliza glasnice perceptivna procjena glasa akustička analiza glasa disfonija terapija glasa.
Resource typetext
Access conditionOpen access
Terms of usehttp://rightsstatements.org/vocab/InC/1.0/
URN:NBNhttps://urn.nsk.hr/urn:nbn:hr:158:953988
CommitterIvanka Šarić