Auditory perceptual performance of children in the identification of contrasts between stressed vowels

Detalhes bibliográficos
Autor(a) principal: Berti, Larissa Cristina [UNESP]
Data de Publicação: 2013
Outros Autores: Roque, Lívia Mayra Rodrigues [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S2317-17822013000600534
http://hdl.handle.net/11449/117931
Resumo: Purpose: To assess the auditory perceptual performance of children in a task of identification of vowel contrasts, to classify which phonemes and vowel contrasts provide higher or lower degrees of difficulty, and to verify the influence of age in this performance. Methods: Data recordings of auditory perceptual performance of 66 children in a task of identification using the software Perception Evaluation Auditive & Visuelle (PERCEVAL) were selected from a database. The task consisted of presenting sound stimuli through headphones to children, who would then choose, from two pictures arranged on the computer screen, the one corresponding to the word they heard. The time between auditory inputs and the child's reaction was automatically computed in the software. Results: The perceptual accuracy was 88% and we found a positive correlation with the variable age. The time of response was significantly longer for incorrect answers as opposed to correct answers (p=0.00). Different degrees of similarity in auditory perception were observed, where front vowels were similar more often than back vowels. The tendency for errors was prevalent in the range of non-peripheral to peripheral vowels, which suggests that the latter may serve as a reference or perceptual anchor. Conclusion: The auditory perceptual ability concerning the identification of vowel contrasts is not yet established in the age group studied. The auditory perception of vowel contrasts occurs gradually and asymmetrically, as the order of acquisition in terms of production and perception was not always the same.
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spelling Auditory perceptual performance of children in the identification of contrasts between stressed vowelsDesempenho perceptivo-auditivo de crianças na identificação de contrastes fonológicos entre as vogais tônicasAuditory perceptionEvaluationSpeechPhoneticsChildPercepção auditivaAvaliaçãoFalaFonéticaCriançaPurpose: To assess the auditory perceptual performance of children in a task of identification of vowel contrasts, to classify which phonemes and vowel contrasts provide higher or lower degrees of difficulty, and to verify the influence of age in this performance. Methods: Data recordings of auditory perceptual performance of 66 children in a task of identification using the software Perception Evaluation Auditive & Visuelle (PERCEVAL) were selected from a database. The task consisted of presenting sound stimuli through headphones to children, who would then choose, from two pictures arranged on the computer screen, the one corresponding to the word they heard. The time between auditory inputs and the child's reaction was automatically computed in the software. Results: The perceptual accuracy was 88% and we found a positive correlation with the variable age. The time of response was significantly longer for incorrect answers as opposed to correct answers (p=0.00). Different degrees of similarity in auditory perception were observed, where front vowels were similar more often than back vowels. The tendency for errors was prevalent in the range of non-peripheral to peripheral vowels, which suggests that the latter may serve as a reference or perceptual anchor. Conclusion: The auditory perceptual ability concerning the identification of vowel contrasts is not yet established in the age group studied. The auditory perception of vowel contrasts occurs gradually and asymmetrically, as the order of acquisition in terms of production and perception was not always the same.OBJETIVOS: Investigar o desempenho perceptivo-auditivo de crianças no tocante à identificação de contrastes entre as vogais tônicas; identificar quais fonemas e contrastes vocálicos indicam maior ou menor grau de dificuldade de identificação; e verificar se a idade influencia a acurácia perceptivo-auditiva. MÉTODOS: Foram selecionadas, de um banco de dados, informações referentes ao desempenho perceptivo-auditivo de 66 crianças em uma tarefa de identificação perceptivo-auditiva da classe das vogais tônicas do Português Brasileiro. Com o uso do software Perception Evaluation Auditive & Visuelle (PERCEVAL), foram apresentados os estímulos acústico e visual solicitando da criança a escolha da gravura correspondente à palavra apresentada auditivamente dentre duas possibilidades de imagens dispostas na tela do computador. O tempo de apresentação do estímulo e de reação das crianças foi computado automaticamente pelo software. RESULTADOS: Observou-se acurácia perceptivo-auditiva de 88% das crianças e correlação positiva com a idade. A variância do tempo de reação dos erros foi superior à dos acertos (p=0,00). Foram observados diferentes graus de similaridade perceptivo-auditiva: vogais anteriores registraram maior similaridade do que vogais posteriores. A tendência que prevaleceu nos erros foi a das vogais menos para as mais periféricas, sugerindo que estas últimas parecem servir como pontos de ancoragem na percepção. CONCLUSÃO: A habilidade perceptivo-auditiva no tocante à identificação de contrastes vocálicos ainda não está estabilizada na faixa etária estudada. O domínio perceptivo-auditivo dos contrastes vocálicos se dá de forma gradativa e assimétrica, e o paralelismo entre a ordem de aquisição em termos de produção e em termos de percepção nem sempre se manteve.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Universidade Estadual Paulista ?Júlio de Mesquita Filho School of Philosophy and SciencesUniversidade Estadual Paulista ?Júlio de Mesquita Filho School of Philosophy and SciencesFAPESP: 11/23121-2FAPESP: 13/00911-3Sociedade Brasileira de FonoaudiologiaUniversidade Estadual Paulista (Unesp)Berti, Larissa Cristina [UNESP]Roque, Lívia Mayra Rodrigues [UNESP]2015-03-19T16:20:29Z2015-03-19T16:20:29Z2013-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article534-541application/pdfapplication/pdfhttp://dx.doi.org/10.1590/S2317-17822013000600534CoDAS. Sociedade Brasileira de Fonoaudiologia, v. 25, n. 6, p. 534-541, 2013.2317-1782http://hdl.handle.net/11449/11793110.1590/S2317-17822013000600534S2317-17822013000600534S2317-17822013000600534-en.pdfS2317-17822013000600534-pt.pdf27287457643344200000-0002-4144-2804SciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCoDAS0,267info:eu-repo/semantics/openAccess2024-08-09T17:39:29Zoai:repositorio.unesp.br:11449/117931Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-09T17:39:29Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Auditory perceptual performance of children in the identification of contrasts between stressed vowels
Desempenho perceptivo-auditivo de crianças na identificação de contrastes fonológicos entre as vogais tônicas
title Auditory perceptual performance of children in the identification of contrasts between stressed vowels
spellingShingle Auditory perceptual performance of children in the identification of contrasts between stressed vowels
Berti, Larissa Cristina [UNESP]
Auditory perception
Evaluation
Speech
Phonetics
Child
Percepção auditiva
Avaliação
Fala
Fonética
Criança
title_short Auditory perceptual performance of children in the identification of contrasts between stressed vowels
title_full Auditory perceptual performance of children in the identification of contrasts between stressed vowels
title_fullStr Auditory perceptual performance of children in the identification of contrasts between stressed vowels
title_full_unstemmed Auditory perceptual performance of children in the identification of contrasts between stressed vowels
title_sort Auditory perceptual performance of children in the identification of contrasts between stressed vowels
author Berti, Larissa Cristina [UNESP]
author_facet Berti, Larissa Cristina [UNESP]
Roque, Lívia Mayra Rodrigues [UNESP]
author_role author
author2 Roque, Lívia Mayra Rodrigues [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Berti, Larissa Cristina [UNESP]
Roque, Lívia Mayra Rodrigues [UNESP]
dc.subject.por.fl_str_mv Auditory perception
Evaluation
Speech
Phonetics
Child
Percepção auditiva
Avaliação
Fala
Fonética
Criança
topic Auditory perception
Evaluation
Speech
Phonetics
Child
Percepção auditiva
Avaliação
Fala
Fonética
Criança
description Purpose: To assess the auditory perceptual performance of children in a task of identification of vowel contrasts, to classify which phonemes and vowel contrasts provide higher or lower degrees of difficulty, and to verify the influence of age in this performance. Methods: Data recordings of auditory perceptual performance of 66 children in a task of identification using the software Perception Evaluation Auditive & Visuelle (PERCEVAL) were selected from a database. The task consisted of presenting sound stimuli through headphones to children, who would then choose, from two pictures arranged on the computer screen, the one corresponding to the word they heard. The time between auditory inputs and the child's reaction was automatically computed in the software. Results: The perceptual accuracy was 88% and we found a positive correlation with the variable age. The time of response was significantly longer for incorrect answers as opposed to correct answers (p=0.00). Different degrees of similarity in auditory perception were observed, where front vowels were similar more often than back vowels. The tendency for errors was prevalent in the range of non-peripheral to peripheral vowels, which suggests that the latter may serve as a reference or perceptual anchor. Conclusion: The auditory perceptual ability concerning the identification of vowel contrasts is not yet established in the age group studied. The auditory perception of vowel contrasts occurs gradually and asymmetrically, as the order of acquisition in terms of production and perception was not always the same.
publishDate 2013
dc.date.none.fl_str_mv 2013-12-01
2015-03-19T16:20:29Z
2015-03-19T16:20:29Z
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/10.1590/S2317-17822013000600534
CoDAS. Sociedade Brasileira de Fonoaudiologia, v. 25, n. 6, p. 534-541, 2013.
2317-1782
http://hdl.handle.net/11449/117931
10.1590/S2317-17822013000600534
S2317-17822013000600534
S2317-17822013000600534-en.pdf
S2317-17822013000600534-pt.pdf
2728745764334420
0000-0002-4144-2804
url http://dx.doi.org/10.1590/S2317-17822013000600534
http://hdl.handle.net/11449/117931
identifier_str_mv CoDAS. Sociedade Brasileira de Fonoaudiologia, v. 25, n. 6, p. 534-541, 2013.
2317-1782
10.1590/S2317-17822013000600534
S2317-17822013000600534
S2317-17822013000600534-en.pdf
S2317-17822013000600534-pt.pdf
2728745764334420
0000-0002-4144-2804
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv CoDAS
0,267
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 534-541
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Sociedade Brasileira de Fonoaudiologia
publisher.none.fl_str_mv Sociedade Brasileira de Fonoaudiologia
dc.source.none.fl_str_mv SciELO
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)
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