Metodologias de análise da velocidade de fala: um estudo piloto

Costa, Luanna Maria Oliveira; Martins-Reis, Vanessa de Oliveira; Celeste, Letícia Corrêa

doi:10.1590/2317-1782/20162015039

Cited by 5 publications

(4 citation statements)

References 19 publications

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“…Syllable production rate has been recognized as a sensitive clinical indicator for detecting and diagnosing speech-motor disorders [e.g., dysarthria/anarthria ( Kent et al, 1987 ), apraxia of speech ( Kent and Rosenbek, 1983 ; Ziegler, 2002 ; Aichert and Ziegler, 2004 ; Ogar et al, 2006 ), and stuttering ( Logan and Conture, 1995 ; Arcuri et al, 2009 )], and syllables per minute (spm) has long been considered a precise, yet flexible measure of speech rate/fluency capable of evaluating both the severity of disordered speech in impaired populations and the efficiency (in terms or rate and fluency) of communication in healthy speakers ( Cotton, 1936 ; Kelly and Steer, 1949 ; Grosjean and Deschamps, 1975 ; Costa et al, 2016 ).…”

Section: Introductionmentioning

confidence: 99%

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The Effect of Speech Repetition Rate on Neural Activation in Healthy Adults: Implications for Treatment of Aphasia and Other Fluency Disorders

Marchina

Norton

Kumar

et al. 2018

Front. Hum. Neurosci.

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Functional imaging studies have provided insight into the effect of rate on production of syllables, pseudowords, and naturalistic speech, but the influence of rate on repetition of commonly-used words/phrases suitable for therapeutic use merits closer examination.Aim: To identify speech-motor regions responsive to rate and test the hypothesis that those regions would provide greater support as rates increase, we used an overt speech repetition task and functional magnetic resonance imaging (fMRI) to capture rate-modulated activation within speech-motor regions and determine whether modulations occur linearly and/or show hemispheric preference.Methods: Twelve healthy, right-handed adults participated in an fMRI task requiring overt repetition of commonly-used words/phrases at rates of 1, 2, and 3 syllables/second (syll./sec.).Results: Across all rates, bilateral activation was found both in ventral portions of primary sensorimotor cortex and middle and superior temporal regions. A repeated measures analysis of variance with pairwise comparisons revealed an overall difference between rates in temporal lobe regions of interest (ROIs) bilaterally (p < 0.001); all six comparisons reached significance (p < 0.05). Five of the six were highly significant (p < 0.008), while the left-hemisphere 2- vs. 3-syll./sec. comparison, though still significant, was less robust (p = 0.037). Temporal ROI mean beta-values increased linearly across the three rates bilaterally. Significant rate effects observed in the temporal lobes were slightly more pronounced in the right-hemisphere. No significant overall rate differences were seen in sensorimotor ROIs, nor was there a clear hemispheric effect.Conclusion: Linear effects in superior temporal ROIs suggest that sensory feedback corresponds directly to task demands. The lesser degree of significance in left-hemisphere activation at the faster, closer-to-normal rate may represent an increase in neural efficiency (and therefore, decreased demand) when the task so closely approximates a highly-practiced function. The presence of significant bilateral activation during overt repetition of words/phrases at all three rates suggests that repetition-based speech production may draw support from either or both hemispheres. This bihemispheric redundancy in regions associated with speech-motor control and their sensitivity to changes in rate may play an important role in interventions for nonfluent aphasia and other fluency disorders, particularly when right-hemisphere structures are the sole remaining pathway for production of meaningful speech.

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Section: Introductionmentioning

confidence: 99%

“…( Ruspantini et al, 2012 ); ∼2.83 syll./sec. ( Costa et al, 2016 ); ∼3.67 syll./sec. ( Robb et al, 2004 ); ∼3.75 syll./sec.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Speech Repetition Rate on Neural Activation in Healthy Adults: Implications for Treatment of Aphasia and Other Fluency Disorders

Marchina

Norton

Kumar

et al. 2018

Front. Hum. Neurosci.

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“…A análise da taxa de elocução, devido a sua complexidade, pode ser medida em palavras por minuto, sílabas por minuto ou, ainda, em fones por segundo (COSTA; MARTINS-REIS; CELESTE, 2016). Nesse contexto, a taxa de elocução expressa em palavras por minuto mede a taxa de produção da informação, que é denominada como a "duração total de um determinado enunciado" e se refere a todo o material linguístico produzido MERLO, 2006;COSTA;MARTINS-REIS;CELESTE, 2016). Em contrapartida, a medição da taxa de elocução em sílabas por minuto tem como objetivo identificar a velocidade articulatória, ou seja, a velocidade em que o sujeito movimenta as estruturas que compõem os órgãos fonoarticulatórios .…”

Section: Introductionunclassified

Análise da taxa de elocução de crianças capixabas

Eloi

Santos

Celeste

et al. 2021

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Este é um estudo descritivo, de corte transversal, que analisou a taxa de elocução da fala semiespontânea de 50 crianças capixabas. Foram coletadas as amostras da fala espontânea e analisadas as unidades de medidas de sílabas e palavras por minuto e fones por segundo. A análise estatística inferencial foi realizada através do Test T de Student para quantificação das amostras cruzando o p-valor (com significância de 0,05). As crianças foram recrutadas em escolas de ensino fundamental da Grande Vitória e divididas em dois grupos, a saber: Grupo 1 (G1), crianças de 7 anos, e, Grupo 2 (G2), crianças de 10 anos, sendo 25 participantes por faixa etária. Foi observado que as crianças de 7 anos gastam mais tempo total de produção de fala, embora a produção das unidades palavras, sílabas e fones totais seja menor. Não houve efeito da idade para nenhuma das medidas de taxa de elocução, todavia a média das crianças de 10 anos foi maior para palavras e sílabas por minuto. Quando comparadas com as médias pré-estabelecidas para as crianças paulistas, a taxa de elocução da variedade capixaba se apresentou maior. Tal achado fortalece a importância do controle dialetal na análise da taxa de elocução.

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“…Regarding its formal aspects, prosody is composed of parameters phonetically described as intensity, melodic variation, and temporal organization of speech. Intensity refers to the amount of energy present in the vibratory movement, and it is represented by dB (decibel); melodic variation is a recurring measure that characterizes the melodic curve, and is associated with fundamental frequency (F0), which is described as the mean frequency of vocal fold vibration and is represented by Hz (hertz) (2) ; the temporal organization of speech includes pause, elocution time, and total articulation time, and through these measures it is possible to obtain others, such as the rates of speech and reading (2,3) .…”

Section: Introductionmentioning

confidence: 99%

Parâmetros prosódicos de leitura em escolares do segundo ao quinto ano do ensino fundamental

Celeste

Pereira

et al. 2018

CoDAS

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Purpose: Characterize and compare melodic variation and reading speed and verify their evolution throughout the development of schooling. Methods: The reading of 78 Elementary School (2 nd to 5 th grade) students was analyzed using the Praat program with regards to the parameters of melodic variation (F0) and reading speed (Duration). Statistical measures (mean and standard deviation) were taken and the Student´s t-test was applied at significance level of 5%. Results: Melodic variation and reading speed increased as schooling progressed, especially during 5 th grade. Conclusion: Melodic variation increases as schooling progresses, mainly during 5 th grade. First minute of reading analysis is sufficient to assess reading speed, not being necessary to analyze the full text. RESUMOObjetivo: Caracterizar a variação melódica e a velocidade de leitura, comparando-as e verificando se há evolução de acordo com o avanço da escolaridade. Método: Foi analisada a leitura de 78 escolares do 2° ao 5° ano do Ensino Fundamental I, por meio do Praat, por meio da análise dos parâmetros de variação melódica (F0) e velocidade de leitura (Duração) e foram realizadas medidas estatísticas (média e desvio padrão) e o teste de student (com nível de significância de 5%). Resultados: Foi possível observar que a variação melódica e a velocidade de leitura tendem a aumentar com o desenvolvimento da escolaridade, especialmente para o quinto ano. Conclusão: A variação melódica aumenta de acordo com o avanço da escolaridade, assim como a velocidade de leitura, sendo maiores os resultados para o quinto ano. Verificou-se que a análise de leitura do primeiro minuto seria necessária para a análise da velocidade de leitura de textos, não sendo necessária a análise do texto completo.

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Metodologias de análise da velocidade de fala: um estudo piloto

Abstract: The inclusion of temporal acoustic measures such as speech rate in phonemes per second and articulation rates with and without disfluencies can be a complementary approach in the evaluation of speech rate.

Cited by 5 publications

References 19 publications

The Effect of Speech Repetition Rate on Neural Activation in Healthy Adults: Implications for Treatment of Aphasia and Other Fluency Disorders

The Effect of Speech Repetition Rate on Neural Activation in Healthy Adults: Implications for Treatment of Aphasia and Other Fluency Disorders

Análise da taxa de elocução de crianças capixabas

Parâmetros prosódicos de leitura em escolares do segundo ao quinto ano do ensino fundamental

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