Exploring auditory-motor interactions in normal and disordered speech
Tourville, Jason A.
Guenther, Frank H.
MetadataShow full item record
Citation (published version)Jason A Tourville, Shanqing Cai, Frank H Guenther. 2013. "Exploring auditory-motor interactions in normal and disordered speech." The Journal of the Acoustical Society of America, Volume 133, Issue 5, pp. 3564 - 3564. https://doi.org/10.1121/1.4806503
Auditory feedback plays an important role in speech motor learning and in the online correction of speech movements. Speakers can detect and correct auditory feedback errors at the segmental and suprasegmental levels during ongoing speech. The frontal brain regions that contribute to these corrective movements have also been shown to be more active during speech in persons who stutter (PWS) compared to fluent speakers. Further, various types of altered auditory feedback can temporarily improve the fluency of PWS, suggesting that atypical auditory-motor interactions during speech may contribute to stuttering disfluencies. To investigate this possibility, we have developed and improved Audapter, a software that enables configurable dynamic perturbation of the spatial and temporal content of the speech auditory signal in real time. Using Audapter, we have measured the compensatory responses of PWS to static and dynamic perturbations of the formant content of auditory feedback and compared these responses with those from matched fluent controls. Our findings indicate deficient utilization of auditory feedback by PWS for short-latency online control of the spatial and temporal parameters of articulation during vowel production and during running speech. These findings provide further evidence that stuttering is associated with aberrant auditory-motor integration during speech.
RightsCopyright 2013 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. The following article appeared in Tourville, Jason A., Shanqing Cai, and Frank Guenther. "Exploring auditory-motor interactions in normal and disordered speech." Proceedings of Meetings on Acoustics ICA2013. Vol. 19. No. 1. Acoustical Society of America, 2013, and may be found at https://doi.org/10.1121/1.4806503.