Identification of acoustically similar and dissimilar vowels in profoundly deaf adults who use hearing aids and/or cochlear implants: some preliminary findings.

Abstract:

PURPOSE:In this study, the authors examined the effects of aging and residual hearing on the identification of acoustically similar and dissimilar vowels in adults with postlingual deafness who use hearing aids (HAs) and/or cochlear implants (CIs). METHOD:The authors used two groups of acoustically similar and dissimilar vowels to assess vowel identification. Also, the Consonant-Nucleus-Consonant Word Recognition Test (Peterson & Lehiste, 1962) and sentences from the Hearing in Noise Test (Nilsson, Soli, & Sullivan, 1994) were administered. Forty CI recipients with postlingual deafness (ages 31-81 years) participated in the study. RESULTS:Acoustically similar vowels were more difficult to identify than acoustically dissimilar vowels. With increasing age, performance deteriorated when identifying acoustically similar vowels. Vowel identification was also affected by the use of a contralateral HA and the degree of residual hearing prior to implantation. Moderate correlations were found between speech perception and vowel identification performance. CONCLUSIONS:Identification performance was affected by the acoustic similarity of the vowels. Older adults experienced more difficulty identifying acoustically similar confusable vowels than did younger adults. The findings might lend support to the ease of language understanding model (Ronnberg, Rudner, Foo, & Lunner, 2008), which proposes that the quality and perceptual robustness of acoustic input affects speech perception.

journal_name

Am J Audiol

authors

Hay-McCutcheon MJ,Peterson NR,Rosado CA,Pisoni DB

doi

10.1044/1059-0889(2013/13-0009)

subject

Has Abstract

pub_date

2014-03-01 00:00:00

pages

57-70

issue

1

eissn

1059-0889

issn

1558-9137

pii

1059-0889_2013_13-0009

journal_volume

23

pub_type

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