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Consequences of hearing aid acclimatization on ALLRs and its relationship with perceived benefit and speech perception abilities

  • MeghaEmail author
  • Sandeep Maruthy
Otolog
  • 6 Downloads

Abstract

Objective

The study aimed to track long latency responses over a period of hearing aid use in naïve hearing aid users, and study its relationship with change in speech perception abilities and perceived benefit.

Methods

Thirty adults in the age range of 23–60 years with moderate sensorineural hearing loss participated in the study. Auditory late latency responses (ALLRs), signal-to-noise ratio − 50 (SNR-50), and scores of speech spatial and qualities questionnaire (SSQ) were measured three times over a period of 2 months of hearing aid use.

Results

ALLRs showed a significant decrease in the P1 and N1 latency across the three measurements. Significant increase in the scores of SSQ and significant decrease in the SNR-50 were also found. The change in ALLRs did not correlate with change in scores of either SSQ or SNR-50.

Conclusions

The study provides evidence for improvements in neural processing of auditory cortical areas with hearing aid acclimatization. The improvements seen in perceived benefit and speech perception are not related to the improvements in ALLRs. This is the first study in the domain with a younger group compared to the previous studies and the results show evidence for neural plasticity influencing hearing aid acclimatization benefits.

Keywords

Auditory late latency responses Hearing aid acclimatization Speech in noise Hearing aid use Neural plasticity Perceived benefit 

Notes

Acknowledgements

We would like to acknowledge All India Institute of Speech and Hearing for providing the resources and infrastructure to carry out this research. The co-operation rendered by the participants for multiple evaluations is extremely appreciated.

Funding

No funding was received.

Compliance with ethical standards

Conflict of interest

None of the authors have potential conflicts of interest to be disclosed.

Informed consent

Informed consent was obtained from all individual participants included in the study. The test procedure conformed to the institutional ethical guidelines for bio-behavioral research in humans.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of AudiologyAll India Institute of Speech and HearingMysoreIndia

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