ArticleJournal of the Association for Research in Otolaryngology : JARO2018
Psychophysical Tuning Curves as a Correlate of Electrode Position in Cochlear Implant Listeners.
Article in Journal of the Association for Research in Otolaryngology : JARO, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.
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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.
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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.
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Who cites it
22 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Cochlear implant re-mapping informed by measures of viability of the electrode-neural interface: a systematic review with meta-analysis.Scientific reports · 2025Pooled it
- Long-Term Influence of Electrode Array Length on Speech Recognition in Cochlear Implant Users.The Laryngoscope · 2021Trial
- Early Spectral Resolution Predicts Later Speech Recognition in Adult Cochlear Implant Recipients.The Laryngoscope · 2026Article
- A deep learning framework for understanding cochlear implants.bioRxiv : the preprint server for biology · 2025Article
- Speech performance in adults with cochlear implants using combined channel deactivation and dynamic current focusing.Hearing research · 2025Article
- [Fitting of cochlear implant systems].HNO · 2025Review
- Model-Based Inference of Electrode Distance and Neuronal Density from Measured Detection Thresholds in Cochlear Implant Listeners.Journal of the Association for Research in Otolaryngology : JARO · 2025Article
- Simulated auditory nerve response evoked by lateral-wall and peri-modiolar electrode arrays inserted in scala tympani or scala vestibuli.Frontiers in neuroscience · 2025Article
- Speech-evoked cortical activities and speech recognition in adult cochlear implant listeners: a review of functional near-infrared spectroscopy studies.Experimental brain research · 2024Review
- Article
- Spectral Resolution Development in Children With Normal Hearing and With Cochlear Implants: A Review of Behavioral Studies.Journal of speech, language, and hearing research : JSLHR · 2022Review
- Recovery from forward masking in cochlear implant listeners: Effects of age and the electrode-neuron interface.The Journal of the Acoustical Society of America · 2021Article
- Word Recognition and Frequency Selectivity in Cochlear Implant Simulation: Effect of Channel Interaction.Journal of clinical medicine · 2021Article
- Article
- Evaluating Psychophysical Polarity Sensitivity as an Indirect Estimate of Neural Status in Cochlear Implant Listeners.Journal of the Association for Research in Otolaryngology : JARO · 2019Article
- Single-Channel Focused Thresholds Relate to Vowel Identification in Pediatric and Adult Cochlear Implant Listeners.Trends in hearingArticle
- Comparing Fixed and Individualized Channel Interaction Coefficients for Speech Perception With Dynamic Focusing Cochlear Implant Strategies.Trends in hearingArticle
- Electrophysiological Estimates of the Electrode-Neuron Interface Differ Between Younger and Older Listeners With Cochlear Implants.Ear and hearingArticle
- Article
- Article
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Authors and funding
2 authors.
Funding
Abstract
Speech understanding abilities vary widely among cochlear implant (CI) listeners. A potential source of this variability is the electrode-neuron interface (ENI), which includes peripheral factors such as electrode position and integrity of remaining spiral ganglion neurons. Suboptimal positioning of the electrode array has been associated with poorer speech outcomes; however, postoperative computerized tomography (CT) scans are often not available to clinicians. CT-estimated electrode-to-modiolus distance (distance from the inner wall of the cochlea) has been shown to account for some variability in behavioral thresholds. However, psychophysical tuning curves (PTCs) may provide additional insight into site-specific variation in channel interaction. Thirteen unilaterally implanted adults with the Advanced Bionics HiRes90K device participated. Behavioral thresholds and PTCs were collected for all available electrodes with steered quadrupolar (sQP) configuration, using a modified threshold sweep procedure, used in Bierer et al. (Trends Hear 19:1-12, 2015). PTC bandwidths were quantified to characterize channel interaction across the electrode array, and tip shifts were assessed to identify possible contributions of neural dead regions. Broader PTC bandwidths were correlated with electrodes farther from the modiolus, but not correlated with sQP threshold, though a trend was observed. Both measures were affected by scalar location, and PTC tip shifts were observed for electrodes farther from the modiolus. sQP threshold was the only variable correlated with word recognition. These results suggest PTCs may be used as a site-specific measure of channel interaction that correlates with electrode position in some CI listeners.
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