Logatome Discrimination in Cochlear Implant Users: Subjective Tests Compared to the Mismatch Negativity
This paper describes a logatome discrimination test for the assessment of speech perception in cochlear implant users (CI users), based on a multilingual speech database, the Oldenburg Logatome Corpus, which was originally recorded for the comparison of human and automated speech recognition. The lo...
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| Language: | English |
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Wiley
2010-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1100/tsw.2010.28 |
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| author | Torsten Rahne Michael Ziese Dorothea Rostalski Roland Mühler |
| author_facet | Torsten Rahne Michael Ziese Dorothea Rostalski Roland Mühler |
| author_sort | Torsten Rahne |
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| description | This paper describes a logatome discrimination test for the assessment of speech perception in cochlear implant users (CI users), based on a multilingual speech database, the Oldenburg Logatome Corpus, which was originally recorded for the comparison of human and automated speech recognition. The logatome discrimination task is based on the presentation of 100 logatome pairs (i.e., nonsense syllables) with balanced representations of alternating “vowel-replacement” and “consonant-replacement” paradigms in order to assess phoneme confusions. Thirteen adult normal hearing listeners and eight adult CI users, including both good and poor performers, were included in the study and completed the test after their speech intelligibility abilities were evaluated with an established sentence test in noise. Furthermore, the discrimination abilities were measured electrophysiologically by recording the mismatch negativity (MMN) as a component of auditory event-related potentials. The results show a clear MMN response only for normal hearing listeners and CI users with good performance, correlating with their logatome discrimination abilities. Higher discrimination scores for vowel-replacement paradigms than for the consonant-replacement paradigms were found. We conclude that the logatome discrimination test is well suited to monitor the speech perception skills of CI users. Due to the large number of available spoken logatome items, the Oldenburg Logatome Corpus appears to provide a useful and powerful basis for further development of speech perception tests for CI users. |
| format | Article |
| id | doaj-art-c8f9022abf954ef0808deeee9e8aa034 |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2010-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-c8f9022abf954ef0808deeee9e8aa0342025-02-03T05:48:28ZengWileyThe Scientific World Journal1537-744X2010-01-011032933910.1100/tsw.2010.28Logatome Discrimination in Cochlear Implant Users: Subjective Tests Compared to the Mismatch NegativityTorsten Rahne0Michael Ziese1Dorothea Rostalski2Roland Mühler3Department of Otolaryngology, Martin-Luther-University Halle-Wittenberg, GermanyDepartment of Experimental Audiology and Medical Physics, Otto-von-Guericke University, Magdeburg, GermanyDepartment of Otolaryngology, Otto-von-Guericke University, Magdeburg, GermanyDepartment of Experimental Audiology and Medical Physics, Otto-von-Guericke University, Magdeburg, GermanyThis paper describes a logatome discrimination test for the assessment of speech perception in cochlear implant users (CI users), based on a multilingual speech database, the Oldenburg Logatome Corpus, which was originally recorded for the comparison of human and automated speech recognition. The logatome discrimination task is based on the presentation of 100 logatome pairs (i.e., nonsense syllables) with balanced representations of alternating “vowel-replacement” and “consonant-replacement” paradigms in order to assess phoneme confusions. Thirteen adult normal hearing listeners and eight adult CI users, including both good and poor performers, were included in the study and completed the test after their speech intelligibility abilities were evaluated with an established sentence test in noise. Furthermore, the discrimination abilities were measured electrophysiologically by recording the mismatch negativity (MMN) as a component of auditory event-related potentials. The results show a clear MMN response only for normal hearing listeners and CI users with good performance, correlating with their logatome discrimination abilities. Higher discrimination scores for vowel-replacement paradigms than for the consonant-replacement paradigms were found. We conclude that the logatome discrimination test is well suited to monitor the speech perception skills of CI users. Due to the large number of available spoken logatome items, the Oldenburg Logatome Corpus appears to provide a useful and powerful basis for further development of speech perception tests for CI users.http://dx.doi.org/10.1100/tsw.2010.28 |
| spellingShingle | Torsten Rahne Michael Ziese Dorothea Rostalski Roland Mühler Logatome Discrimination in Cochlear Implant Users: Subjective Tests Compared to the Mismatch Negativity The Scientific World Journal |
| title | Logatome Discrimination in Cochlear Implant Users: Subjective Tests Compared to the Mismatch Negativity |
| title_full | Logatome Discrimination in Cochlear Implant Users: Subjective Tests Compared to the Mismatch Negativity |
| title_fullStr | Logatome Discrimination in Cochlear Implant Users: Subjective Tests Compared to the Mismatch Negativity |
| title_full_unstemmed | Logatome Discrimination in Cochlear Implant Users: Subjective Tests Compared to the Mismatch Negativity |
| title_short | Logatome Discrimination in Cochlear Implant Users: Subjective Tests Compared to the Mismatch Negativity |
| title_sort | logatome discrimination in cochlear implant users subjective tests compared to the mismatch negativity |
| url | http://dx.doi.org/10.1100/tsw.2010.28 |
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