Visual Influences on Alignment to Voice Onset Time PurposeSpeech shadowing experiments were conducted to test whether alignment (inadvertent imitation) to voice onset time (VOT) can be influenced by visual speech information.MethodExperiment 1 examined whether alignment would occur to auditory /pa/ syllables manipulated to have 3 different VOTs. Nineteen female participants were asked to listen to 180 syllables over ... Article
Article  |   April 01, 2010
Visual Influences on Alignment to Voice Onset Time
 
Author Affiliations & Notes
  • Kauyumari Sanchez
    University of California, Riverside
  • Rachel M. Miller
    University of California, Riverside
  • Lawrence D. Rosenblum
    University of California, Riverside
  • Contact author: Lawrence D. Rosenblum, Department of Psychology, University of California, 900 University Avenue, Riverside, CA 92521. E-mail: rosenblu@citrus.ucr.edu.
Article Information
Speech, Voice & Prosody / Speech
Article   |   April 01, 2010
Visual Influences on Alignment to Voice Onset Time
Journal of Speech, Language, and Hearing Research, April 2010, Vol. 53, 262-272. doi:10.1044/1092-4388(2009/08-0247)
History: Received November 30, 2008 , Revised June 12, 2009 , Accepted July 26, 2009
 
Journal of Speech, Language, and Hearing Research, April 2010, Vol. 53, 262-272. doi:10.1044/1092-4388(2009/08-0247)
History: Received November 30, 2008; Revised June 12, 2009; Accepted July 26, 2009
Web of Science® Times Cited: 13

PurposeSpeech shadowing experiments were conducted to test whether alignment (inadvertent imitation) to voice onset time (VOT) can be influenced by visual speech information.

MethodExperiment 1 examined whether alignment would occur to auditory /pa/ syllables manipulated to have 3 different VOTs. Nineteen female participants were asked to listen to 180 syllables over headphones and to say each syllable out loud quickly and clearly. In Experiment 2, visual speech tokens composed of a face articulating /pa/ syllables at 2 different rates were dubbed onto the audio /pa/ syllables of Experiment 1. Sixteen new female participants were asked to listen to and watch (over a video monitor) 180 syllables and to say each syllable out loud quickly and clearly.

ResultsResults of Experiment 1 showed that the 3 VOTs of the audio /pa/ stimuli influenced the VOTs of the participants' produced syllables. Results of Experiment 2 revealed that both the visible syllable rate and audio VOT of the audiovisual /pa/ stimuli influenced the VOTs of the participants' produced syllables.

ConclusionThese results show that, like auditory speech, visual speech information can induce speech alignment to a phonetically relevant property of an utterance.

Acknowledgment
This research was supported by National Institute on Deafness and Other Communication Disorders Grant 1R01DC008957-01.
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