Article/Report  |   October 2004
The Effect of Phonological Neighborhood Density on Vowel Articulation
 
Author Notes
  • Corresponding author: e-mail: Munso005@umn.edu
  • ¬©American Speech-Language-Hearing Association
Article Information
Speech, Voice & Prosody / Speech
Article/Report   |   October 2004
The Effect of Phonological Neighborhood Density on Vowel Articulation
Journal of Speech, Language, and Hearing Research, October 2004, Vol. 47, 1048-1058. doi:10.1044/1092-4388(2004/078)
History: Received November 26, 2003 , Revised March 15, 2004 , Accepted April 5, 2004
 
Journal of Speech, Language, and Hearing Research, October 2004, Vol. 47, 1048-1058. doi:10.1044/1092-4388(2004/078)
History: Received November 26, 2003; Revised March 15, 2004; Accepted April 5, 2004
Web of Science® Times Cited: 62

Recent literature suggests that phonological neighborhood density and word frequency can affect speech production, in addition to the well-documented effects that they have on speech perception. This article describes 2 experiments that examined how phonological neighborhood density influences the durations and formant frequencies of adults' productions of vowels in real words. In Experiment 1, 10 normal speakers produced words that covaried in phonological neighborhood density and word frequency. Infrequent words with many phonological neighbors were produced with shorter durations and more expanded vowel spaces than frequent words with few phonological neighbors. Results of this experiment confirmed that this effect was not related to the duration of the vowels constituting the high- and low-density words. In Experiment 2, 15 adults produced words that varied in both word frequency and neighborhood density. Neighborhood density affected vowel articulation in both high- and low-frequency words. Moreover, frequent words were produced with more contracted vowel spaces than infrequent words. There was no interaction between these factors, and the vowel duration did not vary as a function of neighborhood density. Taken together, the results suggest that neighborhood density affects vowel production independent of word frequency and vowel duration.

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