The effects of delayed auditory and visual feedback on speech production

Chesters, Jennifer; Baghai-Ravary, Ladan; Möttönen, Riikka

doi:10.1121/1.4906266

Cited by 20 publications

(15 citation statements)

References 51 publications

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“…These results reinforce reports from students who described difficulties in speaking fluently with DAF (15,28) . In the intergroup comparison of spontaneous speech, there were more differences in Non-Altered Auditory Feedback condition than in the delayed one (Tables 2).…”

Section: Discussionsupporting

confidence: 81%

“…As the main focus of Speech-Language Pathology intervention in cluttering is the speech rate reduction and the fluency promotion, and these are the most frequently found effects in DAF (15,(17)(18)(19)(20)(21)(22)(23)(24) , it becomes relevant to investigate the effects of delayed auditory feedback on the cluttering individuals' speech. Will the greater cortex activation in people who clutter also increase the fluency?…”

Section: Introductionmentioning

confidence: 99%

“…A central aspect of cluttering therapy is speech monitoring (4,10,12) , which provides control of speech rate. In order to obtain this domain of oral production, the speaker uses auditory feedback (14) , which also assists in the maintenance of speech fluency (15) . Auditory Feedback Alteration (AFA) is the collective term for the conditions which involve the electronic alteration of the speech signal, in which the speakers perceive their speech differently from the usual one (16) .…”

Section: Introductionmentioning

confidence: 99%

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Efeito da retroalimentação auditiva atrasada na fala e leitura de taquifêmicos

Perrucini

Cardoso

Moura

et al. 2017

Audiol., Commun. Res.

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Introduction: Auditory feedback changes, in general, provide the increase of the speech fluency of people who stutter, but few studies have investigated the effects on speech of people who clutter. Purpose: To compare the speech rate and frequency of speech disruption in spontaneous speech and reading of adults with and without cluttering, with two different auditory feedbacks. Methods: Participants were 16 adults, divided into two groups: Research Group (G1) composed by eight cluttering adults; Control Group (G2), composed by 8 fluent adults, paired by age and gender to participants of G1. The participants of G1 should present at least 10% of common disfluencies, and speech rate higher than the standards expected for age and gender. The procedures used were audiology assessment and fluency evaluation (spontaneous speech and reading) in two listening conditions, with Non-Altered Auditory Feedback (NAF) and after with Delayed Auditory Feedback (DAF). Results: DAF caused reduction of flow of syllables per minute and frequency of common disfluencies in G1 during spontaneous speech task. In reading, there was a decrease in speech disruption and flow of syllables per minute, in G2, influenced by the effect of DAF. Conclusion:The delayed auditory feedback effect in adults who clutter was positive in spontaneous speech due the reduction of speech rate and common disfluencies that are the main manifestations of this disorder.

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Section: Discussionsupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Efeito da retroalimentação auditiva atrasada na fala e leitura de taquifêmicos

Perrucini

Cardoso

Moura

et al. 2017

Audiol., Commun. Res.

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“…Studies in fluent individuals have shown that delayed auditory feedback (DAF) has caused difficulties in speech fluency [16][17][18][19][20][21][22] , and decrease in speech rate [23][24][25] .…”

Section: Introductionmentioning

confidence: 99%

The role of auditory temporal cues in the fluency of stuttering adults

et al. 2017

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Purpose: to compare the frequency of disfluencies and speech rate in spontaneous speech and reading in adults with and without stuttering in non-altered and delayed auditory feedback (NAF, DAF).Methods: participants were 30 adults: 15 with Stuttering (Research Group -RG), and 15 without stuttering (Control Group -CG). The procedures were: audiological assessment and speech fluency evaluation in two listening conditions, normal and delayed auditory feedback (100 milliseconds delayed by Fono Tools software).Results: the DAF caused a significant improvement in the fluency of spontaneous speech in RG when compared to speech under NAF. The effect of DAF was different in CG, because it increased the common disfluencies and the total of disfluencies in spontaneous speech and reading, besides showing an increase in the frequency of stuttering--like disfluencies in reading. The intergroup analysis showed significant differences in the two speech tasks for the two listening conditions in the frequency of stuttering-like disfluencies and in the total of disfluencies, and in the flows of syllable and word-per--minute in the NAF.Conclusion: the results demonstrated that delayed auditory feedback promoted fluency in spontaneous speech of adults who stutter, without interfering in the speech rate. In non-stuttering adults an increase occurred in the number of common disfluencies and total of disfluencies as well as reduction of speech rate in spontaneous speech and reading.

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“…An important tool used by speakers to maintain fluency during oral task is the auditory feedback of the continuous flow of speech 11 . The advent of technology has promoted an increase in researches that can help the intervention in stuttering therapy, for example, the use the altered auditory feedback 12 .…”

Section: Introductionmentioning

confidence: 99%

Comparação da leitura de escolares com gagueira em duas condições de escuta: habitual e atrasada

et al. 2016

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Purpose: to compare the immediate effects of delayed auditory feedback in the oral reading task in school-age children with persistent developmental stuttering. Methods: this study was approved by the Institutional Ethics Committee (n° 0714/2013). Participated 16 school-children aged 8-17 years, 11 males and 5 females, divided into two experimental groups (EG1 and EG2) of 8 participants each; the EG1 composed of participants with moderate stuttering and EG2 with severe or very severe stuttering. The procedures used were audiologic evaluation, fluency assessment in spontaneous speech and evaluation of oral reading fluency in two listening situations: with Normal Auditory Feedback -NAF and Delayed -DAF. The Fono Tools software along with Andrea PureAudio USB -AS adapter and headset microphone Karsect HT-2 were used to cause the effect of the DAF and record speech.Results: the effect of delayed auditory feedback led to reduction of stuttering-like disfluencies in both groups, but the frequency of other disfluencies increased in moderate stuttering group and decreased in the group with severe / very severe stuttering and thus, total disfluencies showed a more significant decrease in EG2. There were statistically significant differences for the oral reading only in intergroup comparison for the stuttering-like disfluencies, at usual auditory feedback situation. Conclusions: the delayed auditory feedback did not cause significant effects during the oral reading in both groups, however there is a tendency of the effect be considered positive for the group with severe / very severe stuttering. Keywords: Speech, Language and Hearing Sciences; Speech Disorders; Reading; Stuttering; Feedback RESUMO Objetivo: comparar os efeitos imediatos do atraso na retroalimentação auditiva na tarefa de leitura oral em escolares com gagueira do desenvolvimento persistente. Métodos: estudo aprovado pelo Comitê de Ética da Instituição (n°0714/2013). Participaram 16 escolares, com idade de 8 a 17 anos, sendo 11 do gênero masculino e 5 do feminino, separados em dois Grupos Experimentais (GE1 e GE2) de 8 participantes cada; o GE1 composto de participantes com gagueira moderada e o GE2 com gagueira grave ou muito grave. Os procedimentos utilizados foram: avaliação audiológica, avaliação da fluência na fala espontânea e avaliação da fluência na leitura oral em duas condições de escuta: com Retroalimentação Auditiva Habitual -RAH e atrasada -RAA. O software Fono Tools junto com o Adaptador Andrea PureAudio USB-AS e microfone auricular Karsect HT-2 foram utilizados para provocar o efeito da RAA e gravar a fala. Resultados: o efeito da retroalimentação auditiva atrasada ocasionou redução das disfluências típicas da gagueira em ambos os grupos, porém a frequência de outras disfluências aumentou no grupo de gagueira moderada e diminuiu no grupo com gagueira grave/muito grave e, desta forma, o total de disfluências apresentou uma diminuição mais significativa no GE2. A diferença foi estatisticamente significante apenas na comparação intergrup...

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The effects of delayed auditory and visual feedback on speech production

Cited by 20 publications

References 51 publications

Efeito da retroalimentação auditiva atrasada na fala e leitura de taquifêmicos

Efeito da retroalimentação auditiva atrasada na fala e leitura de taquifêmicos

The role of auditory temporal cues in the fluency of stuttering adults

Comparação da leitura de escolares com gagueira em duas condições de escuta: habitual e atrasada

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