Evidence map›Paper›PMID 31472555›Full record

ArticleThe Journal of the Acoustical Society of America2019

Effect of channel separation and interaural mismatch on fusion and lateralization in normal-hearing and cochlear-implant listeners.

Alan Kan, Matthew J Goupell, Ruth Y Litovsky

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in The Journal of the Acoustical Society of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed.

  1. Article
  2. Article
  3. Binaural fusion: Complexities in definition and measurement.The Journal of the Acoustical Society of America · 2024
    Review
  4. Effect of interaural electrode insertion depth difference and independent band selection on sentence recognition in noise and spatial release from masking in simulated bilateral cochlear implant listening.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2023
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. The Temporal Limits Encoder as a Sound Coding Strategy for Bilateral Cochlear Implants.IEEE/ACM transactions on audio, speech, and language processing · 2021
    Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Alan KanWaisman Center, University of Wisconsin-Madison, 1500 Highland Avenue, Madison, Wisconsin 53705, USA.
Matthew J GoupellDepartment of Hearing and Speech Sciences, University of Maryland, College Park, Maryland 20742, USA.
Ruth Y LitovskyWaisman Center, University of Wisconsin-Madison, 1500 Highland Avenue, Madison, Wisconsin 53705, USA.

Funding

Directional Hearing in Complex Auditory EnvironmentsR01DC003083 · NIDCD · UNIVERSITY OF WISCONSIN-MADISON · PI LITOVSKY, RUTH Y · 2004 to 2020
$7.4M
CCI-Mobile: Signal Processing Advancements for Cochlear Implant Users in Naturalistic EnvironmentsR01DC016839 · NIDCD · UNIVERSITY OF TEXAS DALLAS · PI HANSEN, JOHN H.L., LITOVSKY, RUTH Y · 2018 to 2022
$3.6M
Optimizing Bilateral and Single-Sided Deafness Cochlear Implants for Functioning in Complex Auditory EnvironmentsR01DC015798 · NIDCD · UNIV OF MARYLAND, COLLEGE PARK · PI BERNSTEIN, JOSHUA GARY, GOUPELL, MATTHEW J. · 2017 to 2021
$2.0M
Restoring binaural hearing abilities to bilateral cochlear implant usersR03DC015321 · NIDCD · UNIVERSITY OF WISCONSIN-MADISON · PI KAN, ALAN HO LUN · 2016 to 2018
$459k
NIDCD NIH HHS R01 DC003083NIDCD NIH HHS R01 DC015798NIDCD NIH HHS R01 DC016839NIDCD NIH HHS R03 DC015321
6 · The paper itself

Abstract

Bilateral cochlear implantation has provided access to some of the benefits of binaural hearing enjoyed by normal-hearing (NH) listeners. However, a gap in performance still exists between the two populations. Single-channel stimulation studies have shown that interaural place-of-stimulation mismatch (IPM) due to differences in implantation depth leads to decreased binaural fusion and lateralization of interaural time and level differences (ITDs and ILDs, respectively). While single-channel studies are informative, multi-channel stimulation is needed for good speech understanding with cochlear implants (CIs). Some multi-channel studies have shown that channel interaction due to current spread can affect ITD sensitivity. In this work, we studied the effect of IPM and channel spacing, along with their potential interaction, on binaural fusion and ITD/ILD lateralization. Experiments were conducted in adult NH listeners and CI listeners with a history of acoustic hearing. Results showed that IPM reduced the range of lateralization for ITDs but not ILDs. CI listeners were more likely to report a fused percept in the presence of IPM with multi-channel stimulation than NH listeners. However, no effect of channel spacing was found. These results suggest that IPM should be accounted for in clinical mapping practices in order to maximize bilateral CI benefits.

Indexed as

Sound LocalizationSpeech PerceptionAdultAuditory ThresholdCochlear ImplantsFemaleHearing LossHumansMaleReaction Time

Identifiers

PMID31472555
PMCPMC6713556

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.