Título:	O impacto do contexto da disfluência na organização temporal de consoantes na gagueira
Outros títulos:	The impact of a dysfluency environment on the temporal organization of consonants in stuttering
Autor(es):	Celeste, Letícia Corrêa Reis, Vanessa de Oliveira Martins
Assunto:	Gagueira Planejamento Destreza motora Fala
Data de publicação:	Jan-2015
Editora:	Academia Brasileira de Audiologia
Referência:	CELESTE, Leticia Correa; MARTINS-REIS, Vanessa de Oliveira. O impacto do contexto da disfluência na organização temporal de consoantes na gagueira. Audiology - Communication Research, São Paulo, v. 20, n. 1, p. 10-17, jan./mar. 2015. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-64312015000100003&lng=en&nrm=iso>. Acesso em: 19 mar. 2018. doi: http://dx.doi.org/10.1590/S2317-64312015000100001482. _________________________________________________________________________________________________________________________________________________ CELESTE, Leticia Correa; MARTINS-REIS, Vanessa de Oliveira. The impact of a dysfluency environment on the temporal organization of consonants in stuttering. Audiology - Communication Research, São Paulo, v. 20, n. 1, p. 10-17, jan./mar. 2015. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-64312015000100003&lng=en&nrm=iso>. Acesso em: 19 mar. 2018. doi: http://dx.doi.org/10.1590/S2317-64312015000100001482.
Abstract:	Purpose: to analyze and compare the voice onset time (VOT) in Brazilian Portuguese speakers who stutter and those who do not, focusing on three different moments of speech: fluent, pre-dysfluent and post-dysfluent environments. Methods: twenty participants (n=10 with stuttering and n=10 without stuttering) were recorded. The data were transcribed and segmented for acoustic analysis, and it was extracted tokens of Brazilian Portuguese voiceless stops /p/, /t/ and /k/. Tokens were classified according to whether they were produced by people who stutter (PWS) or by people who do not stutter (PWnS), and according to their environment in speech (i.e., in fluent speech, pre-dysfluency, and post-dysfluency). For comparisons within groups it were used the Friedman and Wilcoxon tests, and the Mann-Whitney test was used in intergroup comparisons. Statistical analyses were executed using SPSS 14.0 with the significance level set at α=0.05. Results: VOT in stuttering and non-stuttering speakers differed most in the environment of pre-dysfluencies, during which stuttering speakers show significantly longer VOT than speakers who do not stutter. After passing through a moment of dysfluency, however, stuttering speakers’ VOT returns to measures similar to non-stuttering speakers’. Conclusion: in pre-dysfluent and post-dysfluent speech, PWS produces longer VOT than PWnS. In the fluent speech of PWS, the stops behave differently. The implications of these results for speech motor control are discussed.
Unidade Acadêmica:	Faculdade de Ciências e Tecnologias em Saúde (FCTS) – Campus UnB Ceilândia Curso de Fonoaudiologia (FCTS-FONO)
Licença:	Audiology - Communication Research - This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY NC 3.0). Fonte: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-64312015000100003&lng=en&nrm=iso&tlng=pt&ORIGINALLANG=pt. Acesso em: 19 mar. 2018.
DOI:	http://dx.doi.org/10.1590/S2317-64312015000100001482
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