Effect of vowel identity and onset asynchrony on concurrent vowel identification

Mark Hedrick, Steven G. Madix

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Purpose: The purpose of the current study was to determine the effects of vowel identity and temporal onset asynchrony on identification of vowels overlapped in time. Method: Fourteen listeners with normal hearing, with a mean age of 24 years, participated. The listeners were asked to identify both of a pair of 200-ms vowels (referred to as double vowels) presented either simultaneously or with a temporal asynchrony ranging from 25 ms to 150 ms in 25-ms steps. The stimuli were synthetic steady-state vowels /i æ A u 3/ arranged in seven combinations: /u i/, /æ a/, /3 a/, /3 æ/, /æ i/, /3 i/, and /3 u/. Results: Listeners' responses revealed that one vowel of a pair was identified correctly more often than the other vowel (known as vowel dominance). Vowel dominance effects were seen for 6 of the 7 vowel pairs, and there was improvement of vowel identification with increasing temporal separation between vowels for 5 of the 7 pairs. Vowel pairs with the vowel /3/ consistently yielded improved identification with increases in temporal asynchrony. Discussion: Peripheral masking cannot explain the patterns of results of this study. A more parsimonious explanation may be perceptual anchoring.

Original languageEnglish (US)
Pages (from-to)696-705
Number of pages10
JournalJournal of Speech, Language, and Hearing Research
Volume52
Issue number3
DOIs
StatePublished - Jun 1 2009
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Language and Linguistics
  • Linguistics and Language
  • Speech and Hearing

Cite this

Effect of vowel identity and onset asynchrony on concurrent vowel identification. / Hedrick, Mark; Madix, Steven G.

In: Journal of Speech, Language, and Hearing Research, Vol. 52, No. 3, 01.06.2009, p. 696-705.

Research output: Contribution to journalArticle

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