ArticleJournal of the Association for Research in Otolaryngology : JARO2020
Improving Interaural Time Difference Sensitivity Using Short Inter-pulse Intervals with Amplitude-Modulated Pulse Trains in Bilateral Cochlear Implants.
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 9 papers.
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Who cites it
9 citing papers in PubMed, 14 citations in OpenAlex.
- Magnified interaural level differences enhance binaural unmasking in bilateral cochlear implant users.The Journal of the Acoustical Society of America · 2025Article
- Pitch discrimination in electric hearing with inconsistent and consistent amplitude-modulation and inter-pulse rate cues.The Journal of the Acoustical Society of America · 2023Article
- A Computational Model for Evaluating Transient Auditory Storage of Acoustic Features in Normal Listeners.Sensors (Basel, Switzerland) · 2022Article
- Reweighting of Binaural Localization Cues in Bilateral Cochlear-Implant Listeners.Journal of the Association for Research in Otolaryngology : JARO · 2022Article
- Auditory Brainstem Models: Adapting Cochlear Nuclei Improve Spatial Encoding by the Medial Superior Olive in Reverberation.Journal of the Association for Research in Otolaryngology : JARO · 2021Article
- Temporal-pitch sensitivity in electric hearing with amplitude modulation and inserted pulses with short inter-pulse intervals.The Journal of the Acoustical Society of America · 2020Article
- Effects of Monaural Temporal Electrode Asynchrony and Channel Interactions in Bilateral and Unilateral Cochlear-Implant Stimulation.Trends in hearingArticle
- Limitations on Temporal Processing by Cochlear Implant Users: A Compilation of Viewpoints.Trends in hearingReview
- Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
Interaural time differences (ITDs) at low frequencies are important for sound localization and spatial speech unmasking. These ITD cues are not encoded in commonly used envelope-based stimulation strategies for cochlear implants (CIs) using high pulse rates. However, ITD sensitivity can be improved by adding extra pulses with short inter-pulse intervals (SIPIs) in unmodulated high-rate trains. Here, we investigated whether this improvement also applies to amplitude-modulated (AM) high-rate pulse trains. To this end, we systematically varied the temporal position of SIPI pulses within the envelope cycle (SIPI phase), the fundamental frequency (F0) of AM (125 Hz and 250 Hz), and AM depth (from 0.1 to 0.9). Stimuli were presented at an interaurally place-matched electrode pair at a reference pulse rate of 1000 pulses/s. Participants performed an ITD-based left/right discrimination task. SIPI insertion resulted in improved ITD sensitivity throughout the range of modulation depths and for both male and female F0s. The improvements were largest for insertion at and around the envelope peak. These results are promising for conveying salient ITD cues at high pulse rates commonly used to encode speech information.
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Registered trials
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