Tongue contour for /s/ and /?/ in children with speech sound disorder

Wertzner, Haydée Fiszbein; Francisco, Danira Tavares; Pagan-Neves, Luciana de Oliveira

doi:10.1590/2317-1782/201420130022

Cited by 11 publications

(17 citation statements)

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“…Both EGG and aerodynamic measures show quite interesting outcomes for children with SSD who present the phonological process of devoicing of fricatives and plosives, which is very common in Brazilian-Portuguese (BP) [42,43]. Ultrasound tongue imaging (UTI) is a tool used in articulatory analysis because it allows real time visualization of tongue movement, allowing speech-language therapists to visualize how the lingual sounds are produced, mainly in cases of substitutions of anterior sounds by posterior sounds (or vice versa) [44][45][46][47][48], as well as in cases of distortions [49,50].…”

Section: Speech Productionmentioning

confidence: 99%

“…A qualitative study [48] of the tongue shape for the /s/ and /ʃ/ sounds in three different groups of children with and without SSD. Six participants aged 5 and 8 years, all speakers of Brazilian-Portuguese, were divided into three groups: Group 1, with two typically developing children; Group 2, with two children with SSD presenting other phonological processes except those involving the production of the /ʃ/ sound; and Group 3, with two children with SSD presenting phonological processes associated with the presence of palatal fronting (these two children produced /ʃ/ as /s/).…”

Section: Ultrasound Tongue Imagingmentioning

confidence: 99%

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Evidence for Speech Sound Disorder (SSD) Assessment

Wertzner¹,

Francisco²,

Barrozo³

et al. 2017

Advances in Speech-Language Pathology

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Comprehensive studies on aspects related to the assessment of different biomedical parameters (acoustic and laryngeal signs and oral airflow amplitude), as well as parameters for speech disorders, articulation rate, speech inconsistency, and speech stimulability, are essential for better professional practice and to understand misarticulations in children with speech sound disorders (SSDs). Different equipments that enable noninvasive collection and analysis of data have become more common in speech-language pathology practice. Studies recently conducted by our research group have emphasized the evaluation of auditory-perceptual processing by means of assessments of central auditory processing, electrophysiology of hearing-considering that pure-tone, speech audiometry, and tympanometry are routinely used with children during the diagnostic phase and motor speech production performed by acoustic analysis of speech, electroglottography, aerodynamic measures, and ultrasound tongue imaging. This chapter presents the recent advances observed in studies with Brazilian-Portuguese speakers aiming to improve the assessment of speech sound disorders and to understand better the relationship between the different processing mechanisms involved in speech.

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Section: Speech Productionmentioning

confidence: 99%

Section: Ultrasound Tongue Imagingmentioning

confidence: 99%

Evidence for Speech Sound Disorder (SSD) Assessment

Wertzner¹,

Francisco²,

Barrozo³

et al. 2017

Advances in Speech-Language Pathology

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“…Another challenge for the TUS applicability would be the need for clinicians to present previous knowledge about the ultrasonographic pattern of tongue movement for the production of different phonemes. In the literature, there are authors that described different speech sounds 9 , while other authors have proposed to study classes of isolated sounds, such as occlusives 10 , fricatives 11 , liquids 5,[12][13][14] and vowels 15,16 .…”

Section: Introductionmentioning

confidence: 99%

Ultrasonographic analysis of lateral liquids and coronal fricatives: judgment of experienced and non-experienced judges

Lima

Silva

et al. 2018

Rev. CEFAC

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Purpose: to verify if the accuracy in the judgment of the ultrasound (US) images varies according to the experience of the judges and the sound class - alveolar liquids and coronal fricatives. Methods: ultrasound images related to the production of liquids and fricatives in the intervocalic context of the vowel /a/, produced by 20 typical adults, were judged by 15 experienced judges and 15 non-experienced judges. A previous analysis of the images was performed to establish the typical ultrasound pattern of the liquids and fricatives. The accuracy (% of correctness and errors) of the judgments performed by the judges was considered in the analysis. Factorial ANOVA statistical test was used, considering as factors the sound class and the experience of the judges. Results: the Factorial ANOVA showed a significant effect for the accuracy of the judgment only for the sound class, with no significance for the judges' experience or for the interaction between the experience of judges and the sound class. The liquids had a lower accuracy in the judgment, as compared to the fricatives, confirming their articulatory complexity, since they involve the production of two simultaneous gestures. Conclusion: the accuracy in the judgment of the US images did not vary according to the experience of judges, but it was dependent on the sound class. It should be noted, however, that all judges presented previous knowledge about the processes of speech production which may have favored image interpretation.

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“…Tongue ultrasound studies in BP are even more scarce. To date, this analytical instrument has been used to research liquid (24,25) , stop (19,22) and fricative (26) consonants. Thus, the present study focuses on the acoustic and articulatory characterization of the typical contrast between alveolar and velar stops in BP.…”

Section: Introductionmentioning

confidence: 99%

O contraste entre oclusivas alveolares e velares em dados típicos de fala: análises acústica e ultrassonográfica

Melo

Mota²,

Berti

2017

CoDAS

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RESUMO Objetivo Caracterizar acústica e articulatoriamente o contraste entre oclusivas alveolares e velares em dados típicos de fala, além de comparar os parâmetros (acústicos e articulatórios) de adultos e de crianças com desenvolvimento típico de fala. Método A amostra consistiu de 20 adultos e 15 crianças com desenvolvimento típico de fala. O corpus analisado no presente estudo foi composto por cinco repetições de cada palavra-alvo (/’kap ə/, /‘tapə/, /‘galo/ e /‘daɾə/). Essas palavras foram inseridas em frase-veículo e o indivíduo foi instruído a nomeá-las espontaneamente. Foi realizada a gravação simultânea de áudio e vídeo (imagens de ultrassom de língua). Os dados passaram por análise acústica (voice onset time; pico espectral e momentos espectrais do burst; transição consoante/vogal e medidas de duração relativa) e articulatória (proporção de eixos significantes da região anterior e posterior de língua e descrição das curvas de língua). Resultados Os parâmetros acústicos e articulatórios investigados foram sensíveis em marcar o contraste entre oclusivas alveolares e velares, principalmente, no grupo de adultos. Ambas as análises de fala sinalizaram também algumas diferenças estatisticamente significantes entre os dois grupos da pesquisa. Conclusão Os parâmetros acústicos e articulatórios investigados forneceram indícios para a caracterização do contraste fônico alvo do estudo. Dentre as principais contribuições da comparação da fala adulta e infantil, destaca-se a evidência de um período de refinamento/amadurecimento articulatório, mesmo após a aquisição dos segmentos oclusivos.

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Tongue contour for /s/ and /?/ in children with speech sound disorder

Abstract: The use of the ultrasound applied to the speech analysis was effective to confirm the perceptual analysis of the sound made by the speech-language pathologist.

Cited by 11 publications

References 5 publications

Evidence for Speech Sound Disorder (SSD) Assessment

Evidence for Speech Sound Disorder (SSD) Assessment

Ultrasonographic analysis of lateral liquids and coronal fricatives: judgment of experienced and non-experienced judges

O contraste entre oclusivas alveolares e velares em dados típicos de fala: análises acústica e ultrassonográfica

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Tongue contour for /s/ and /?/ in children with speech sound disorder

Abstract: The use of the ultrasound applied to the speech analysis was effective to confirm the perceptual analysis of the sound made ​​by the speech-language pathologist.

Cited by 11 publications

References 5 publications

Evidence for Speech Sound Disorder (SSD) Assessment

Evidence for Speech Sound Disorder (SSD) Assessment

Ultrasonographic analysis of lateral liquids and coronal fricatives: judgment of experienced and non-experienced judges

O contraste entre oclusivas alveolares e velares em dados típicos de fala: análises acústica e ultrassonográfica

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Abstract: The use of the ultrasound applied to the speech analysis was effective to confirm the perceptual analysis of the sound made by the speech-language pathologist.