Advantages of Pulse Rate Compared to Modulation Frequency for Temporal Pitch Perception in Cochlear Implant Users

Goldsworthy, Raymond L.; Bissmeyer, Susan R.; Camarena, Andres

doi:10.1007/s10162-021-00828-w

Cited by 6 publications

(3 citation statements)

References 91 publications

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“…However, the detrimental effect of higher temporal information was magnified when manipulating the modulation rate instead of the pulse rate. A similar pattern was found in van Hoesel et al (2009) and Goldsworthy et al (2022) . Additionally, participants' accuracy may have been affected by the lack of control of loudness growth for the temporal-based pitch matching stimuli.…”

Section: Discussionsupporting

confidence: 84%

Temporal pitch matching with bilateral cochlear implants

Aronoff,

Soleimanifar,

2024

JASA Express Letters

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Interaural pitch matching is a common task used with bilateral cochlear implant (CI) users, although studies measuring this have largely focused on place-based pitch matches. Temporal-based pitch also plays an important role in CI users' perception, but interaural temporal-based pitch matching has not been well characterized for CI users. To investigate this, bilateral CI users were asked to match amplitude modulation frequencies of stimulation across ears. Comparisons were made to previous place-based pitch matching data that were collected using similar procedures. The results indicate that temporal-based pitch matching is particularly sensitive to the choice of reference ear.

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Section: Discussionsupporting

confidence: 84%

Temporal pitch matching with bilateral cochlear implants

Aronoff,

Soleimanifar,

2024

JASA Express Letters

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“…The spatial response to the harmonic tone is nearly identical for the three strategies, with the response quantified as the proportion of charge delivered to each electrode. Note that proportional charge is normalized here, clinical implementation of PDT will likely require higher charge on low-frequency channels since lower pulse rates require more charge per pulse to obtain audibility thresholds and comfortable listening levels (Goldsworthy and Shannon, 2014;Bissmeyer et al, 2020;Goldsworthy et al, 2021Goldsworthy et al, , 2022. For all three stimulation strategies, the fundamental frequency clearly produces a resolved peak in the spatial pattern, which occurs in the stimulation pattern as well as after modeling current spread and neural excitation.…”

Section: Comparison Of Cochlear Implant Stimulation Strategies For Co...mentioning

confidence: 99%

“…While some degree of synchrony is maintained despite the reduction in stimulation rate, there is clearly a loss of detail in the response of the auditory nerve. Psychophysically, a previous study has shown that cochlear implant users are sensitive to small fluctuations in charge density that occur associated with this loss of detail in the temporal fine structure (Goldsworthy et al, 2022).…”

Section: Effect Of Stimulation Rate On Neural Responsementioning

confidence: 99%

Computational Modeling of Synchrony in the Auditory Nerve in Response to Acoustic and Electric Stimulation

Goldsworthy

2022

Front. Comput. Neurosci.

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Cochlear implants are medical devices that provide hearing to nearly one million people around the world. Outcomes are impressive with most recipients learning to understand speech through this new way of hearing. Music perception and speech reception in noise, however, are notably poor. These aspects of hearing critically depend on sensitivity to pitch, whether the musical pitch of an instrument or the vocal pitch of speech. The present article examines cues for pitch perception in the auditory nerve based on computational models. Modeled neural synchrony for pure and complex tones is examined for three different electric stimulation strategies including Continuous Interleaved Sampling (CIS), High-Fidelity CIS (HDCIS), and Peak-Derived Timing (PDT). Computational modeling of current spread and neuronal response are used to predict neural activity to electric and acoustic stimulation. It is shown that CIS does not provide neural synchrony to the frequency of pure tones nor to the fundamental component of complex tones. The newer HDCIS and PDT strategies restore synchrony to both the frequency of pure tones and to the fundamental component of complex tones. Current spread reduces spatial specificity of excitation as well as the temporal fidelity of neural synchrony, but modeled neural excitation restores precision of these cues. Overall, modeled neural excitation to electric stimulation that incorporates temporal fine structure (e.g., HDCIS and PDT) indicates neural synchrony comparable to that provided by acoustic stimulation. Discussion considers the importance of stimulation rate and long-term rehabilitation to provide temporal cues for pitch perception.

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Combining Place and Rate of Stimulation Improves Frequency Discrimination in Cochlear Implant Users

Bissmeyer

Goldsworthy

2022

Hearing Research

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Advantages of Pulse Rate Compared to Modulation Frequency for Temporal Pitch Perception in Cochlear Implant Users

Cited by 6 publications

References 91 publications

Temporal pitch matching with bilateral cochlear implants

Temporal pitch matching with bilateral cochlear implants

Computational Modeling of Synchrony in the Auditory Nerve in Response to Acoustic and Electric Stimulation

Combining Place and Rate of Stimulation Improves Frequency Discrimination in Cochlear Implant Users

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