Impact of Presentation Order on Pitch Ranking Sensitivity in Cochlear Implant Users and Normal-Hearing Listeners and Its Mitigation.
Accurate pitch perception in cochlear implants (CIs) remains challenging, making psychophysical measures susceptible to procedural biases. In unilateral pitch ranking, subjects judge which of two successive stimuli is higher in pitch, typically yielding electrode order roughly consistent with tonoto...
| Published in: | Trends in Hearing Vol. 30; pp. 1 - 19 |
|---|---|
| Main Authors: | , , , , , , , , |
| Format: | research tables/charts Journal Article |
| Published: |
Sage Publications Inc.
7/15/2026
|
| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=195415780&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 195415780 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 23312165 HCEJ jtl: Trends in Hearing issn: 23312165 maglogo: N pubinfo: dt: 7/15/2026 vid: 30 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 195415780 195415780 195415780 10.1177/23312165261447074 195415780 ppf: 1 ppct: 18 formats: tig: atl: Impact of Presentation Order on Pitch Ranking Sensitivity in Cochlear Implant Users and Normal-Hearing Listeners and Its Mitigation. aug: au: Castañeda González, Carmen Marie Huber, Manuela Völk, Florian Teufel, Louis Djamal, Aulia Ruan, Linya Znaidi, Skander Hemmert, Werner Karg, Sonja affil: Bio-Inspired Information Processing, Munich Institute of Biomedical Engineering, Technical University of Munich, Munich, Germany sug: subj: Persons with Hearing Disabilities Psychosocial Factors Cochlear Implant Pitch Perception Evaluation Psychoacoustics Acoustic Stimulation Human Male Female Adult Middle Age Validation Studies Comparative Studies Descriptive Statistics Data Analysis Software Analysis of Variance Repeated Measures Post Hoc Analysis Hearing Disorders Rehabilitation of Persons with Hearing Loss Auditory Threshold Judgment Task Performance and Analysis Audiologists Funding Source Adult: 19-44 years Middle Aged: 45-64 years Male Female ab: Accurate pitch perception in cochlear implants (CIs) remains challenging, making psychophysical measures susceptible to procedural biases. In unilateral pitch ranking, subjects judge which of two successive stimuli is higher in pitch, typically yielding electrode order roughly consistent with tonotopy. In our study with 10 MED-EL CI users, each of the 12 electrodes was compared with its three next neighbors. Pitch ranking was influenced by the presentation order of the electrode pairs. To investigate this effect, we tested 9 normal-hearing (NH) listeners using bandpass-filtered noise (6 dB/oct slopes) to approximate current spread during CI stimulation. Comparable performances across CI and NH in all three spacing conditions indicated similar pitch perception difficulty. On average, both groups discriminated 8 of 12 channels based solely on pitch (discriminability via d'), suggesting that 6 dB/oct slopes approximate mean monopolar current spread at the group level. Pitch rankings of adjacent channels exhibited biases. A repeated-measures ANOVA revealed a significant interaction between presentation order and stimulation site in both groups (CI: p =.003; NH: p <.001): pairs below the stimulus range midpoint were more often reported as descending, whereas pairs above the middle were more often reported as ascending. This asymmetric bias may reflect a context-dependent decision process in which subjects compare the second stimulus to a weighted average of the first and previously presented stimuli. Presentation-order effects were mitigated by testing stimulus pairs in isolation, at the expense of reduced randomization. Our findings highlight the importance of controlling biases to ensure reliable psychophysical measures. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
|---|