Noise helps cochlear implant listeners to categorize vowels

Robert P. Morse; Stephen D. Holmes; Richard Irving; David McAlpine

doi:10.1121/10.0010071

Noise helps cochlear implant listeners to categorize vowels

Robert P. Morse^*, Stephen D. Holmes, Richard Irving, David McAlpine

^*Corresponding author for this work

Department of Linguistics

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

46 Downloads (Pure)

Abstract

Theoretical studies demonstrate that controlled addition of noise can enhance the amount of information transmitted by a cochlear implant (CI). The present study is a proof-of-principle for whether stochastic facilitation can improve the ability of CI users to categorize speech sounds. Analogue vowels were presented to CI users through a single electrode with independent noise on multiple electrodes. Noise improved vowel categorization, particularly in terms of an increase in information conveyed by the first and second formant. Noise, however, did not significantly improve vowel recognition: the miscategorizations were just more consistent, giving the potential to improve with experience.

Original language	English
Article number	042001
Pages (from-to)	042001-1-042001-7
Number of pages	7
Journal	JASA Express Letters
Volume	2
Issue number	4
DOIs	https://doi.org/10.1121/10.0010071
Publication status	Published - Apr 2022

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Copyright the Author(s) 2022. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

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abstract = "Theoretical studies demonstrate that controlled addition of noise can enhance the amount of information transmitted by a cochlear implant (CI). The present study is a proof-of-principle for whether stochastic facilitation can improve the ability of CI users to categorize speech sounds. Analogue vowels were presented to CI users through a single electrode with independent noise on multiple electrodes. Noise improved vowel categorization, particularly in terms of an increase in information conveyed by the first and second formant. Noise, however, did not significantly improve vowel recognition: the miscategorizations were just more consistent, giving the potential to improve with experience.",

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AU - Holmes, Stephen D.

AU - Irving, Richard

AU - McAlpine, David

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AB - Theoretical studies demonstrate that controlled addition of noise can enhance the amount of information transmitted by a cochlear implant (CI). The present study is a proof-of-principle for whether stochastic facilitation can improve the ability of CI users to categorize speech sounds. Analogue vowels were presented to CI users through a single electrode with independent noise on multiple electrodes. Noise improved vowel categorization, particularly in terms of an increase in information conveyed by the first and second formant. Noise, however, did not significantly improve vowel recognition: the miscategorizations were just more consistent, giving the potential to improve with experience.

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Noise helps cochlear implant listeners to categorize vowels

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