Consequences of hearing aid acclimatization on ALLRs and its relationship with perceived benefit and speech perception abilities
- 6 Downloads
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.
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.
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.
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.
KeywordsAuditory late latency responses Hearing aid acclimatization Speech in noise Hearing aid use Neural plasticity Perceived benefit
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.
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 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.
- 3.Taylor B (2007) Changes in hearing aid benefit over time: An evidence-based Review. Audiology Online. Retrieved from http://www.audiologyonline.com/articles/article_detail.asp?article_id=1853. Accessed 5 April 2012
- 13.Habicht J, Finke M, Neher T (2018) Auditory acclimatization to bilateral hearing aids: effects on sentence-in-noise processing times and speech-evoked potentials. Ear Hear 39:161–171Google Scholar
- 14.McCullagh JP (2009) An investigation of central auditory nervous system plasticity following amplification. University of Connecticut, ConnecticutGoogle Scholar
- 25.Puttabasappa M, Periannan JA, Kumar SKS, Chinnaraj C (2015) Development of phonemically balanced word lists for adults in the Kannada language. J Hear Sci 5:22–30Google Scholar
- 26.Gnanateja N (2016) Speech Spectrum shaped noise. MathLab file retrieved from https://in.mathworks.com/matlabcentral/fileexchange/55701-speech-spectrum-shaped-noise. Accessed on 12 Dec 2016
- 27.Uppunda A, Maruthy S (2014) Effect of Auditory-cognitive training on some auditory and speech reception on skills in individuals with sensorineural hearing loss. DST Project, AIISH, MysuruGoogle Scholar
- 35.Ng EHN, Classon E, Larsby B, Arlinger S, Lunner T, Rudner M, Ronnberg J (2014) Dynamic relation between working memory capacity and speech recognition in noise during the first 6 months of hearing aid use. Trends Hear 18:1–10Google Scholar