| Autor: |
Välimaa TT; Department of Finnish, Saami and Logopedics University of Oulu. taina.valimaa@oulu.fi, Määttä TK, Löppönen HJ, Sorri MJ |
| Jazyk: |
angličtina |
| Zdroj: |
Journal of speech, language, and hearing research : JSLHR [J Speech Lang Hear Res] 2002 Oct; Vol. 45 (5), pp. 1039-54. |
| DOI: |
10.1044/1092-4388(2002/084) |
| Abstrakt: |
The aim of this study was to investigate how postlingually severely or profoundly hearing-impaired adults relearn to recognize vowels after receiving multichannel cochlear implants. Vowel recognition of 19 Finnish-speaking subjects was studied for a minimum of 6 months and a maximum of 24 months using an open-set nonsense-syllable test in a prospective repeated-measure design. The responses were coded for phoneme errors, and 95% confidence intervals for recognition and confusions were calculated. The average vowel recognition was 68% (95% confidence interval = 66-70%) 6 months after switch-on and 80% (95% confidence interval = 78-82%) 24 months after switch-on. The vowels [ae], [u], [i], [o], and [a] were the easiest to recognize, and the vowels [y], [e], and [ø] were the most difficult. In conclusion, adaptation to electrical hearing using a multichannel cochlear implant was achieved well; but for at least 2 years, given two vowels with either F1 or F2 at roughly the some frequencies, confusions were drawn more towards the closest vowel with the next highest F1 or F2. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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