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The effects of delayed auditory and visual feedback on speech production

Chesters, Jennifer; Baghai-Ravary, Ladan; M�tt�nen, Riikka

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Authors

Jennifer Chesters

Ladan Baghai-Ravary

Riikka M�tt�nen



Abstract

Monitoring the sensory consequences of articulatory movements supports speaking. For example, delaying auditory feedback of a speaker's voice disrupts speech production. Also, there is evidence that this disruption may be decreased by immediate visual feedback, i.e., seeing one's own articulatory movements. It is, however, unknown whether delayed visual feedback affects speech production in fluent speakers. Here, the effects of delayed auditory and visual feedback on speech fluency (i.e., speech rate and errors), vocal control (i.e., intensity and pitch), and speech rhythm were investigated. Participants received delayed (by 200?ms) or immediate auditory feedback, while repeating sentences. Moreover, they received either no visual feedback, immediate visual feedback, or delayed visual feedback (by 200, 400, and 600?ms). Delayed auditory feedback affected fluency, vocal control, and rhythm. Immediate visual feedback had no effect on any of the speech measures when it was combined with delayed auditory feedback. Delayed visual feedback did, however, affect speech fluency when it was combined with delayed auditory feedback. In sum, the findings show that delayed auditory feedback disrupts fluency, vocal control, and rhythm and that delayed visual feedback can strengthen the disruptive effect of delayed auditory feedback on fluency.

Journal Article Type Article
Acceptance Date Jan 7, 2015
Online Publication Date Feb 1, 2015
Deposit Date Dec 5, 2017
Publicly Available Date Dec 5, 2017
Journal The Journal of the Acoustical Society of America
Electronic ISSN 1520-8524
Publisher Nature Publishing Group
Peer Reviewed Peer Reviewed
Volume 137
Issue 2
DOI https://doi.org/10.1121/1.4906266
Public URL https://nottingham-repository.worktribe.com/output/985017
Publisher URL http://asa.scitation.org/doi/10.1121/1.4906266
Additional Information © 2015 Acoustical Society of America.

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