Abstract:
OBJECTIVE:This study investigated categorical loudness scaling in a large group of cochlear implant (CI) recipients. DESIGN:Categorical loudness was measured for individually determined sets of current amplitudes on apical, mid and basal electrodes of the Nucleus array. STUDY SAMPLE:Thirty adult subjects implanted with the Nucleus CI. RESULTS:Subjects were generally reliable in categorical loudness scaling. As expected, current levels eliciting the same loudness categories differed across subjects and electrodes in many cases. After scaling the electric levels to remove differences in dynamic ranges across subjects and electrodes, the across-subject loudness functions for the three electrodes were very similar. CONCLUSIONS:Scaled electric current to remove differences in dynamic range, as implemented in the Nucleus processor, ensures uniform loudness across the array and CI recipients. The results also showed that categorical loudness scaling for electric stimulation was similar to that for acoustic stimulation in normal hearing subjects. These findings could be used as a guide for aligning electric and acoustic loudness in CI recipients with contralateral hearing.
journal_name
Int J Audioljournal_title
International journal of audiologyauthors
Busby PA,Au Adoi
10.1080/14992027.2017.1339129subject
Has Abstractpub_date
2017-11-01 00:00:00pages
862-869issue
11eissn
1499-2027issn
1708-8186journal_volume
56pub_type
杂志文章abstract::Audiometric measurements through a hearing aid ('in-situ') may facilitate provision of hearing services where these are limited. This study investigated the validity and reliability of in-situ air conduction hearing thresholds measured with closed and open domes relative to thresholds measured with insert earphones, a...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.3109/14992027.2010.503664
更新日期:2010-12-01 00:00:00
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journal_title:International journal of audiology
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journal_title:International journal of audiology
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journal_title:International journal of audiology
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journal_title:International journal of audiology
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journal_title:International journal of audiology
pub_type: 杂志文章,多中心研究
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journal_title:International journal of audiology
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pub_type: 杂志文章
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journal_title:International journal of audiology
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journal_title:International journal of audiology
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journal_title:International journal of audiology
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journal_title:International journal of audiology
pub_type: 杂志文章,评审
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journal_title:International journal of audiology
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journal_title:International journal of audiology
pub_type: 杂志文章
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更新日期:2015-01-01 00:00:00
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journal_title:International journal of audiology
pub_type: 杂志文章,评审
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journal_title:International journal of audiology
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pub_type: 杂志文章,多中心研究
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pub_type: 杂志文章,随机对照试验
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journal_title:International journal of audiology
pub_type: 杂志文章
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