Evaluation of cochlear activity in normal-hearing musicians

Nilesh J Washnik; Ishan Sunilkumar Bhatt; Susan L Phillips; Denise Tucker; Scott Richter

doi:10.1016/j.heares.2020.108027

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Evaluation of cochlear activity in normal-hearing musicians

Journal article

Open access

Peer reviewed

Evaluation of cochlear activity in normal-hearing musicians

Nilesh J Washnik, Ishan Sunilkumar Bhatt, Susan L Phillips, Denise Tucker and Scott Richter

Hearing research, Vol.395, 108027

09/15/2020

DOI: 10.1016/j.heares.2020.108027

PMCID: PMC7483999

PMID: 32659614

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Abstract

The present study compared wave I amplitude of auditory brainstem responses (ABRs), a potential indicator of cochlear synaptopathy, among musicians and non-musicians with normal audiograms. Noise exposure background (NEB) was evaluated using an online questionnaire. Two-channel ABRs were recorded from the left ear using click stimuli. One channel utilized an ipsilateral tiptrode, and another channel utilized an ipsilateral mastoid electrode. ABRs were collected at 90, 75, and 60 dBnHL. A mixed model was used to analyze the effect of group, electrodes, and stimulus levels on ABR wave I amplitude. 75 collegiate students with normal hearing participated in the study and were grouped into a non-music major group (n = 25), a brass major group (n = 25), and a voice major group (n = 25). The NEB was negatively associated with the action potential (AP) and ABR wave I amplitude for click intensity levels at 75 dBnHL. The mean amplitude of the ABR wave I was not significantly different between the three groups. The weak negative association of AP and ABR wave I amplitude with NEB cannot be solely attributed to evidence of cochlear synaptopathy in humans as the possibility of hair cell damage cannot be ruled out. Future research should investigate the effects of reduced cochlear output on the supra-threshold speech processing abilities of student musicians. •NEB was a significant predictor of the action potential and ABR wave I amplitude elicited with 75 dBnHL clicks.•Gender was a significant predictor of ABR wave I amplitude elicited with 75 and 60 dBnHL.•AP and ABR wave I amplitudes were not statistically significantly different among the study groups.•ABR wave III and V amplitudes were not statistically significantly different among the study groups.•ABR wave I, III and V latencies were not statistically significantly different among the study groups.

Amplitude

Auditory brainstem response (ABR)

Brass majors

Hearing thresholds

Noise exposure

Non-musicians

Synaptopathy

Voice majors

Details

Title: Subtitle: Evaluation of cochlear activity in normal-hearing musicians
Creators: Nilesh J Washnik - Ohio University
Ishan Sunilkumar Bhatt - University of Iowa
Susan L Phillips - University of North Carolina at Greensboro
Denise Tucker - University of North Carolina at Greensboro
Scott Richter - University of North Carolina at Greensboro
Resource Type: Journal article
Publication Details: Hearing research, Vol.395, 108027
DOI: 10.1016/j.heares.2020.108027
PMID: 32659614
PMCID: PMC7483999
NLM abbreviation: Hear Res
ISSN: 0378-5955
eISSN: 1878-5891
Publisher: Elsevier B.V
Grant note: DOI: 10.13039/100000055, name: National Institute on Deafness and Other Communication Disorders, award: R21DC016704-01A1
Language: English
Date published: 09/15/2020
Academic Unit: Communication Sciences and Disorders
Record Identifier: 9984258745402771

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