Abstract：
AIM:The influence of bilateral cochlear implants (CI) and unilateral CI on the self-reported listening effort in standardized situations is being assessed. SAMPLE AND METHODS:The sample consisted of 34 bilateral and 38 unilateral adult CI users. Unilateral CI users had at least severe hearing loss in the non-implanted ear and had been fitted with a hearing aid. The listening effort has been defined as a subjectively perceived effort in understanding a speaker. Patients were administered a customized questionnaire containing nine examples of listening situations with different demands. The listening effort expended in each situation had to be rated on a six-step scale. Answers were analyzed using repeated measures ANOVA, including the factors "level of background noise," "listening duration," and the covariates "patient age" and "time since CI implantation." RESULTS:Only the factors "level of background noise" and "listening duration" were significant (p = 0.024 and p = 0.001 respectively). Unilateral versus bilateral CI was not significant (p = 0.17). Nevertheless, bilateral CI users reported a lower degree of listening effort than unilateral users in all of the nine situations asked about in the questionnaire (binomial test: p = 0.002). DISCUSSION:We conclude that bilateral CI use has some effect on reducing listening effort, but compared with unilateral use the effect is possibly not very great.
journal_name
HNOjournal_title
HNOauthors
Schnabl J,Bumann B,Rehbein M,Müller O,Seidler H,Wolf-Magele A,Sprinzl G,Windfuhr J,Weichbold Vdoi
10.1007/s00106-015-0020-ysubject
Has Abstractpub_date
2015-08-01 00:00:00pages
546-51issue
8eissn
0017-6192issn
1433-0458journal_volume
63pub_type
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