Tongue displacement and durational characteristics of normal and disordered Brazilian Portuguese liquids
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , |
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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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 |
|
_version_ |
1799965737859678208 |