Binaural sensitivity and processing of envelope-based interaural difference cues by bilateral cochlear implant users with perilingual and postlingual onset of deafness.
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| Title: | Binaural sensitivity and processing of envelope-based interaural difference cues by bilateral cochlear implant users with perilingual and postlingual onset of deafness. |
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| Authors: | Peng, Z. Ellen1 (AUTHOR) Ellen.Peng@boystown.org, Kan, Alan1 (AUTHOR), Litovsky, Ruth Y.1 (AUTHOR) |
| Source: | Journal of the Acoustical Society of America. Apr2026, Vol. 159 Issue 4, p3464-3475. 12p. |
| Subjects: | Cochlear implants, Interaural time difference, Binaural audio, Deaf people, Hearing disorders |
| Abstract: | Cochlear implants deliver binaural cues primarily in the signal envelope through two unsynchronized sound processors, presenting challenges to bilateral cochlear implant (BiCI) users to (re)gain binaural hearing. Using a custom-designed acoustic complex to elicit multi-channel stimulation through the cochlear implant sound processors, this study measured sensitivity to interaural time difference (ITD) and interaural level difference (ILD) using a discrimination task while concurrently tracking eye gaze positions to reveal decision-making delays during binaural processing. Two groups of BiCI users were tested with either perilingual or postlingual onset of deafness. Results show all BiCI users exhibited ILD sensitivity and a majority (67% of the perilingual and 78% of the postlingual) demonstrated ITD sensitivity, though those with perilingual onset showed higher (poorer) ITD sensitivity compared to postlingual users. Additionally, ILD processing at suprathreshold magnitudes led to faster decision making as accuracy increased for both groups. However, ITD processing was less salient, with faster ITD processing observed only in the postlingual group. These findings provide insights into the differences in binaural processing in users based on the timing of deafness onset. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of the Acoustical Society of America is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 193402382 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Binaural sensitivity and processing of envelope-based interaural difference cues by bilateral cochlear implant users with perilingual and postlingual onset of deafness. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Peng%2C+Z%2E+Ellen%22">Peng, Z. Ellen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> Ellen.Peng@boystown.org</i><br /><searchLink fieldCode="AR" term="%22Kan%2C+Alan%22">Kan, Alan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Litovsky%2C+Ruth+Y%2E%22">Litovsky, Ruth Y.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+the+Acoustical+Society+of+America%22">Journal of the Acoustical Society of America</searchLink>. Apr2026, Vol. 159 Issue 4, p3464-3475. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Cochlear+implants%22">Cochlear implants</searchLink><br /><searchLink fieldCode="DE" term="%22Interaural+time+difference%22">Interaural time difference</searchLink><br /><searchLink fieldCode="DE" term="%22Binaural+audio%22">Binaural audio</searchLink><br /><searchLink fieldCode="DE" term="%22Deaf+people%22">Deaf people</searchLink><br /><searchLink fieldCode="DE" term="%22Hearing+disorders%22">Hearing disorders</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Cochlear implants deliver binaural cues primarily in the signal envelope through two unsynchronized sound processors, presenting challenges to bilateral cochlear implant (BiCI) users to (re)gain binaural hearing. Using a custom-designed acoustic complex to elicit multi-channel stimulation through the cochlear implant sound processors, this study measured sensitivity to interaural time difference (ITD) and interaural level difference (ILD) using a discrimination task while concurrently tracking eye gaze positions to reveal decision-making delays during binaural processing. Two groups of BiCI users were tested with either perilingual or postlingual onset of deafness. Results show all BiCI users exhibited ILD sensitivity and a majority (67% of the perilingual and 78% of the postlingual) demonstrated ITD sensitivity, though those with perilingual onset showed higher (poorer) ITD sensitivity compared to postlingual users. Additionally, ILD processing at suprathreshold magnitudes led to faster decision making as accuracy increased for both groups. However, ITD processing was less salient, with faster ITD processing observed only in the postlingual group. These findings provide insights into the differences in binaural processing in users based on the timing of deafness onset. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of the Acoustical Society of America is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1121/10.0043466 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 3464 Subjects: – SubjectFull: Cochlear implants Type: general – SubjectFull: Interaural time difference Type: general – SubjectFull: Binaural audio Type: general – SubjectFull: Deaf people Type: general – SubjectFull: Hearing disorders Type: general Titles: – TitleFull: Binaural sensitivity and processing of envelope-based interaural difference cues by bilateral cochlear implant users with perilingual and postlingual onset of deafness. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Peng, Z. Ellen – PersonEntity: Name: NameFull: Kan, Alan – PersonEntity: Name: NameFull: Litovsky, Ruth Y. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 00014966 Numbering: – Type: volume Value: 159 – Type: issue Value: 4 Titles: – TitleFull: Journal of the Acoustical Society of America Type: main |
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