15th International Congress of Phonetic Sciences (ICPhS-15)

Barcelona, Spain
August 3-9, 2003

The Timing Control of Speech Production Adapted to Delayed Auditory Feedback

Haruhiko Sawada, Kazuhiko Kakehi

Nagoya University, Japan

The purpose of this study is to examine the effect of delayed auditory feedback on reaction time and duration of speech. Six normal subjects participated in this experiment and were exposed to delayed auditory feedback (delay times were 0ms, 100ms, 200ms, 300ms or 400ms). After reading a simple text during exposure to delayed auditory feedback, the duration of the speech and the reaction time in the delayed naming task were measured, using a CRT tachistoscope. Subjects showed not only a significant prolongation of duration of speech, but also a significant delay of reaction time for words, especially on the 200ms condition of delayed auditory feedback. This indicates that the speech planning process might predict and the delay of auditory feedback before articulation. Furthermore, word size effect in reaction time was observed independent of delayed auditory feedback.

Full Paper

Bibliographic reference.  Sawada, Haruhiko / Kakehi, Kazuhiko (2003): "The timing control of speech production adapted to delayed auditory feedback", In ICPhS-15, 3173-3176.