Tongue displacement and durational characteristics of normal and disordered Brazilian Portuguese liquids

Detalhes bibliográficos
Autor(a) principal: Berti, Larissa [UNESP]
Data de Publicação: 2016
Outros Autores: De Boer, Gillian, Bressmann, Tim
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.3109/02699206.2015.1116607
http://hdl.handle.net/11449/161259
Resumo: The goal of the present study was to characterize normal and disordered Brazilian Portuguese liquids. The research hypotheses were that disordered liquid sounds would be characterized by (1) longer syllable and segment durations, (2) larger and more undifferentiated displacement of the tongue and (3) that the speech errors would show sub-phonemic differences depending on the target sound. The participants of this study were 11 children with phonological disorders and 9 control participants matched for age and educational background. The children's tongue movement in the sagittal plane was recorded with ultrasound. The speech stimuli consisted of 3 repetitions of 5 words representing the four Brazilian Portuguese liquids /l/, /?/, /?/ and /?/ in the context of the vowel /a/. A panel of four listeners transcribed each of the productions and classified them as correct or incorrect. The outcome measures were based on duration (syllable duration, ratio L/V) and tongue displacement (percentage average displacement, anterior displacement, posterior displacement). Based on mixed model analyses of variance, the first research hypothesis was confirmed for the /l/ and /?/ targets, but not for the /?/ and /?/ targets. The second hypothesis was partially confirmed. The third hypothesis was confirmed. The research serves to illustrate the effects of phonological disorder on the phonetic realisation of Brazilian Portuguese liquid sounds.
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spelling Tongue displacement and durational characteristics of normal and disordered Brazilian Portuguese liquidsAcousticsdevelopmental phonological disordersspeech productionultrasoundThe goal of the present study was to characterize normal and disordered Brazilian Portuguese liquids. The research hypotheses were that disordered liquid sounds would be characterized by (1) longer syllable and segment durations, (2) larger and more undifferentiated displacement of the tongue and (3) that the speech errors would show sub-phonemic differences depending on the target sound. The participants of this study were 11 children with phonological disorders and 9 control participants matched for age and educational background. The children's tongue movement in the sagittal plane was recorded with ultrasound. The speech stimuli consisted of 3 repetitions of 5 words representing the four Brazilian Portuguese liquids /l/, /?/, /?/ and /?/ in the context of the vowel /a/. A panel of four listeners transcribed each of the productions and classified them as correct or incorrect. The outcome measures were based on duration (syllable duration, ratio L/V) and tongue displacement (percentage average displacement, anterior displacement, posterior displacement). Based on mixed model analyses of variance, the first research hypothesis was confirmed for the /l/ and /?/ targets, but not for the /?/ and /?/ targets. The second hypothesis was partially confirmed. The third hypothesis was confirmed. The research serves to illustrate the effects of phonological disorder on the phonetic realisation of Brazilian Portuguese liquid sounds.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Sao Paulo State Univ, Dept Speech Language & Hearing Sci, Ave Hygino Muzzi Filho 737, BR-17525900 Marilia, SP, BrazilUniv Toronto, Dept Speech Language Pathol, Toronto, ON, CanadaSao Paulo State Univ, Dept Speech Language & Hearing Sci, Ave Hygino Muzzi Filho 737, BR-17525900 Marilia, SP, BrazilFAPESP: 13/013813-0Taylor & Francis IncUniversidade Estadual Paulista (Unesp)Univ TorontoBerti, Larissa [UNESP]De Boer, GillianBressmann, Tim2018-11-26T16:27:47Z2018-11-26T16:27:47Z2016-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article131-149http://dx.doi.org/10.3109/02699206.2015.1116607Clinical Linguistics & Phonetics. Philadelphia: Taylor & Francis Inc, v. 30, n. 2, p. 131-149, 2016.0269-9206http://hdl.handle.net/11449/16125910.3109/02699206.2015.1116607WOS:000371335400004Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengClinical Linguistics & Phonetics0,662info:eu-repo/semantics/openAccess2021-10-23T14:54:01Zoai:repositorio.unesp.br:11449/161259Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T14:54:01Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Tongue displacement and durational characteristics of normal and disordered Brazilian Portuguese liquids
title Tongue displacement and durational characteristics of normal and disordered Brazilian Portuguese liquids
spellingShingle Tongue displacement and durational characteristics of normal and disordered Brazilian Portuguese liquids
Berti, Larissa [UNESP]
Acoustics
developmental phonological disorders
speech production
ultrasound
title_short Tongue displacement and durational characteristics of normal and disordered Brazilian Portuguese liquids
title_full Tongue displacement and durational characteristics of normal and disordered Brazilian Portuguese liquids
title_fullStr Tongue displacement and durational characteristics of normal and disordered Brazilian Portuguese liquids
title_full_unstemmed Tongue displacement and durational characteristics of normal and disordered Brazilian Portuguese liquids
title_sort Tongue displacement and durational characteristics of normal and disordered Brazilian Portuguese liquids
author Berti, Larissa [UNESP]
author_facet Berti, Larissa [UNESP]
De Boer, Gillian
Bressmann, Tim
author_role author
author2 De Boer, Gillian
Bressmann, Tim
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Univ Toronto
dc.contributor.author.fl_str_mv Berti, Larissa [UNESP]
De Boer, Gillian
Bressmann, Tim
dc.subject.por.fl_str_mv Acoustics
developmental phonological disorders
speech production
ultrasound
topic Acoustics
developmental phonological disorders
speech production
ultrasound
description The goal of the present study was to characterize normal and disordered Brazilian Portuguese liquids. The research hypotheses were that disordered liquid sounds would be characterized by (1) longer syllable and segment durations, (2) larger and more undifferentiated displacement of the tongue and (3) that the speech errors would show sub-phonemic differences depending on the target sound. The participants of this study were 11 children with phonological disorders and 9 control participants matched for age and educational background. The children's tongue movement in the sagittal plane was recorded with ultrasound. The speech stimuli consisted of 3 repetitions of 5 words representing the four Brazilian Portuguese liquids /l/, /?/, /?/ and /?/ in the context of the vowel /a/. A panel of four listeners transcribed each of the productions and classified them as correct or incorrect. The outcome measures were based on duration (syllable duration, ratio L/V) and tongue displacement (percentage average displacement, anterior displacement, posterior displacement). Based on mixed model analyses of variance, the first research hypothesis was confirmed for the /l/ and /?/ targets, but not for the /?/ and /?/ targets. The second hypothesis was partially confirmed. The third hypothesis was confirmed. The research serves to illustrate the effects of phonological disorder on the phonetic realisation of Brazilian Portuguese liquid sounds.
publishDate 2016
dc.date.none.fl_str_mv 2016-02-01
2018-11-26T16:27:47Z
2018-11-26T16:27:47Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.3109/02699206.2015.1116607
Clinical Linguistics & Phonetics. Philadelphia: Taylor & Francis Inc, v. 30, n. 2, p. 131-149, 2016.
0269-9206
http://hdl.handle.net/11449/161259
10.3109/02699206.2015.1116607
WOS:000371335400004
url http://dx.doi.org/10.3109/02699206.2015.1116607
http://hdl.handle.net/11449/161259
identifier_str_mv Clinical Linguistics & Phonetics. Philadelphia: Taylor & Francis Inc, v. 30, n. 2, p. 131-149, 2016.
0269-9206
10.3109/02699206.2015.1116607
WOS:000371335400004
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Clinical Linguistics & Phonetics
0,662
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 131-149
dc.publisher.none.fl_str_mv Taylor & Francis Inc
publisher.none.fl_str_mv Taylor & Francis Inc
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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