Evidence map›Paper›PMID 32020417›Full record

ArticleJournal of the Association for Research in Otolaryngology : JARO2020

Polarity Sensitivity as a Potential Correlate of Neural Degeneration in Cochlear Implant Users.

Quentin Mesnildrey, Frédéric Venail, Robert P Carlyon, Olivier Macherey

Open access · bronzeAbstract read
In one paragraph

Article in Journal of the Association for Research in Otolaryngology : JARO, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 14% of its field
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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Outcomes of cochlear implantation in Usher syndrome: a systematic review.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 · 2024
    Pooled it
  2. Article
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  6. Assessing the Relationship Between Pitch Perception and Neural Health in Cochlear Implant Users.Journal of the Association for Research in Otolaryngology : JARO · 2022
    Article
  7. Article
  8. Article
  9. Cochlear Implant Research and Development in the Twenty-first Century: A Critical Update.Journal of the Association for Research in Otolaryngology : JARO · 2021
    Review
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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

4 authors at 3 institutions in 2 countries.

Quentin MesnildreyAix Marseille Univ, CNRS, Centrale Marseille, LMA UMR, 7031, Marseille, France. mesnildrey@lma.cnrs-mrs.fr.ORCID 0000-0003-2149-3599
Frédéric VenailENT Department, University Hospital, Montpellier, France.
Robert P CarlyonMedical Research Council, Cognition and Brain Sciences Unit, University of Cambridge, Cambridge, UK.
Olivier MachereyAix Marseille Univ, CNRS, Centrale Marseille, LMA UMR, 7031, Marseille, France.
Centre National de la Recherche Scientifique · FRCentre Hospitalier Universitaire de Montpellier · FRMRC Cognition and Brain Sciences Unit · GB

Funding

Medical Research Council MC_UU_00005/3
6 · The paper itself

Abstract

Cochlear implant (CI) performance varies dramatically between subjects. Although the causes of this variability remain unclear, the electrode-neuron interface is thought to play an important role. Here we evaluate the contribution of two parameters of this interface on the perception of CI listeners: the electrode-to-modiolar wall distance (EMD), estimated from cone-beam computed tomography (CT) scans, and a measure of neural health. Since there is no objective way to quantify neural health in CI users, we measure stimulus polarity sensitivity, which is assumed to be related to neural degeneration, and investigate whether it also correlates with subjects' performance in speech recognition and spectro-temporal modulation detection tasks. Detection thresholds were measured in fifteen CI users (sixteen ears) for partial-tripolar triphasic pulses having an anodic or a cathodic central phase. The polarity effect was defined as the difference in threshold between cathodic and anodic stimuli. Our results show that both the EMD and the polarity effect correlate with detection thresholds, both across and within subjects, although the within-subject correlations were weak. Furthermore, the mean polarity effect, averaged across all electrodes for each subject, was negatively correlated with performance on a spectro-temporal modulation detection task. In other words, lower cathodic thresholds were associated with better spectro-temporal modulation detection performance, which is also consistent with polarity sensitivity being a marker of neural degeneration. Implications for the design of future subject-specific fitting strategies are discussed.

Indexed as

Auditory ThresholdCochlear ImplantsSpeech PerceptionAdultAgedCochleaCone-Beam Computed TomographyHumansMiddle AgedYoung Adultcochlear implantcomputed tomography scansneural degenerationpolarity

Identifiers

PMID32020417
PMCPMC7062980
OpenAlexW3012127482

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.