Evidence map›Paper›PMID 23479187›Full record

ArticleJournal of the Association for Research in Otolaryngology : JARO2013

The polarity sensitivity of the electrically stimulated human auditory nerve measured at the level of the brainstem.

Jaime A Undurraga, Robert P Carlyon, Jan Wouters, Astrid van Wieringen

Open access · greenAbstract read
In one paragraph

Article in Journal of the Association for Research in Otolaryngology : JARO, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
2.0field-weighted citation impact, top 15% 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

35 citing papers in PubMed, 61 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Cochlear Health and Cochlear-implant Function.Journal of the Association for Research in Otolaryngology : JARO · 2023
    Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Cochlear Implant Research and Development in the Twenty-first Century: A Critical Update.Journal of the Association for Research in Otolaryngology : JARO · 2021
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Polarity Sensitivity as a Potential Correlate of Neural Degeneration in Cochlear Implant Users.Journal of the Association for Research in Otolaryngology : JARO · 2020
    Article
  19. Article
  20. 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

4 authors at 2 institutions in 2 countries.

Jaime A UndurragaExpORL, Department of Neurosciences, University of Leuven, Leuven, Belgium. jaime.undurraga@med.kuleuven.be
Robert P Carlyon
Jan Wouters
Astrid van Wieringen
KU Leuven · BEMRC Cognition and Brain Sciences Unit · GB

Funding

Medical Research Council MC_U105559842
6 · The paper itself

Abstract

Recent behavioral studies have suggested that the human auditory nerve of cochlear implant (CI) users is mainly excited by the positive (anodic) polarity. Those findings were only obtained using asymmetric pseudomonophasic (PS) pulses where the effect of one phase was measured in the presence of a counteracting phase of opposite polarity, longer duration, and lower amplitude than the former phase. It was assumed that only the short high-amplitude phase was responsible for the excitation. Similarly, it has been shown that electrically evoked compound action potentials could only be obtained in response to the anodic phases of asymmetric pulses. Here, experiment 1 measured electrically evoked auditory brainstem responses to standard symmetric, PS, reversed pseudomonophasic, and reversed pseudomonophasic with inter-phase gap (6 ms) pulses presented for both polarities. Responses were time locked to the short high-amplitude phase of asymmetric pulses and were smaller, but still measurable, when that phase was cathodic than when it was anodic. This provides the first evidence that cathodic stimulation can excite the auditory system of human CI listeners and confirms that this stimulation is nevertheless less effective than for the anodic polarity. A second experiment studied the polarity sensitivity at different intensities by means of a loudness balancing task between pseudomonophasic anodic (PSA) and pseudomonophasic cathodic (PSC) stimuli. Previous studies had demonstrated greater sensitivity to anodic stimulation only for stimuli producing loud percepts. The results showed that PSC stimuli required higher amplitudes than PSA stimuli to reach the same loudness and that this held for current levels ranging from 10 to 100% of the dynamic range.

Indexed as

Cochlear ImplantsAgedCell PolarityCochlear NerveElectric StimulationEvoked Potentials, Auditory, Brain StemHumansLoudness PerceptionMiddle AgedSensitivity and Specificity

Identifiers

PMID23479187
PMCPMC3642274
OpenAlexW1967829341

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.