Keywords
Auditory Neuropathy Spectrum Disorder (ANSD); cortical auditory evoked potentials (CAEP); cortical phase synchrony; inter-trial coherence (ITC); hearing aids
Abstract
Objective: The benefit of hearing aids as a clinical intervention strategy for children with Auditory Neuropathy Spectrum Disorder (ANSD) remains controversial. The goal of this study was to determine whether amplification through hearing aid use increased cortical phase synchrony in children with ANSD. Design: Using inter-trial coherence (ITC) of the EEG signal as a measure of cortical phase-locking, we examined differences in cortical phase synchrony in children with ANSD using both cross-sectional and longitudinal designs. Study Sample: Participants in the cross-sectional and longitudinal portions of the study included 58 and 16 children with clinical diagnoses of ANSD, respectively. Results: Results in the cross-sectional portion of the study revealed no significant difference in ITC between unaided and aided children. Overall, longitudinal data revealed no significant increase in ITC over time with hearing aid use. However, half of the subjects in the longitudinal sample showed a significant decrease in ITC from the unaided to the aided conditions. Conclusions: Overall, our results suggest that hearing aids may not be a beneficial intervention strategy for increasing cortical neural synchrony in all cases of ANSD and that amplification may actually reduce cortical phase-locking in some children with ANSD. The clinical implications of these findings are discussed.
Original Publication Citation
Cardon, G., Sharma, A. (2021) The effect of amplification on cortical synchrony in children with Auditory Neuropathy Spectrum Disorder. Hearing, Balance, and Communication
BYU ScholarsArchive Citation
Cardon, Garrett and Sharma, Anu, "The effect of amplification on cortical synchrony in children with auditory neuropathy spectrum disorder" (2021). Faculty Publications. 7577.
https://scholarsarchive.byu.edu/facpub/7577
Document Type
Peer-Reviewed Article
Publication Date
2021
Publisher
Hearing, Balance, and Communication
Language
English
College
David O. McKay School of Education
Department
Communication Disorders
Copyright Status
©2021 International Association of Physicians in Audiology
Copyright Use Information
© Brigham Young University. All rights reserved. The information available on this site, including any text, data, artwork, video, audio, images or graphics (collectively, the "Material") may be protected by copyright and other intellectual property laws. Entities other than Brigham Young University (BYU) may own copyright in the Material. We encourage use of this Material for non-profit and educational purposes, such as personal research, teaching and private study. For these limited purposes, Material from this web site may be displayed and printed, and all copies must include any copyright notice included with the Material. Except as provided above, or any use beyond what is allowed by fair use (Title 17, § 107 U.S.C.), you may not reproduce, republish, post, transmit or distribute any Material from this web site in any physical or digital form without the permission of the copyright owner of the Material. Inquiries regarding any further use of the Materials contained on this site, please contact the C