Influence of the Acoustic Reflex on Vowel Recognition Computer synthesized vowels of 50- and 300-ms duration were presented to normal-hearing listeners at a moderate and high sound pressure level (SPL). Presentation at the high SPL resulted in poor recognition accuracy for vowels of a duration (50 ms) shorter than the latency of the acoustic stapedial reflex. Presentation level ... Research Article
Research Article  |   September 01, 1986
Influence of the Acoustic Reflex on Vowel Recognition
 
Author Affiliations & Notes
  • Michael Dorman
    Arizona State University, Tempe
  • Ingrid Cedar
    Arizona State University, Tempe
  • Maureen Hannley
    Arizona State University, Tempe
  • Marjorie Leek
    Arizona State University, Tempe
  • Julie Mapes Lindholm
    Arizona State University, Tempe
Article Information
Research Articles
Research Article   |   September 01, 1986
Influence of the Acoustic Reflex on Vowel Recognition
Journal of Speech, Language, and Hearing Research, September 1986, Vol. 29, 420-424. doi:10.1044/jshr.2903.420
History: Received January 24, 1985 , Accepted April 28, 1986
 
Journal of Speech, Language, and Hearing Research, September 1986, Vol. 29, 420-424. doi:10.1044/jshr.2903.420
History: Received January 24, 1985; Accepted April 28, 1986

Computer synthesized vowels of 50- and 300-ms duration were presented to normal-hearing listeners at a moderate and high sound pressure level (SPL). Presentation at the high SPL resulted in poor recognition accuracy for vowels of a duration (50 ms) shorter than the latency of the acoustic stapedial reflex. Presentation level had no effect on recognition accuracy for vowels of sufficient duration (300 ms) to elicit the reflex. The poor recognition accuracy for the brief, high intensity vowels was significantly improved when the reflex was preactivated. These results demonstrate the importance of the acoustic reflex in extending the dynamic range of the auditory system for speech recognition.

Order a Subscription
Pay Per View
Entire Journal of Speech, Language, and Hearing Research content & archive
24-hour access
This Article
24-hour access