Evidence for adaptive plasticity in elderly monaural hearing aid users

Kevin J. Munro; Adam J. Walker; Suzanne C. Purdy

doi:10.1097/WNR.0b013e32822025f4

Evidence for adaptive plasticity in elderly monaural hearing aid users

Kevin J. Munro^*, Adam J. Walker, Suzanne C. Purdy

^*Corresponding author for this work

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

23 Citations (Scopus)

Abstract

Hearing aids can induce perceptual changes in some elderly listeners but few studies have investigated physiological changes in this population. Loudness discomfort levels and acoustic reflex thresholds were measured in long-term users of a single hearing aid. The results show an asymmetry of +2 to +9 dB between ears in the sound level that (i) causes loudness discomfort and (ii) elicits a reflex contraction of the middle ear muscles. The elevation of the acoustic reflex threshold occurs in the ear with hearing aid experience, irrespective of the ear of stimulation. Therefore, there is evidence of adaptive plasticity and this can be measured at the level of the auditory brainstem.

Original language	English
Pages (from-to)	1237-1240
Number of pages	4
Journal	NeuroReport
Volume	18
Issue number	12
DOIs	https://doi.org/10.1097/WNR.0b013e32822025f4
Publication status	Published - Aug 2007

Keywords

Acoustic reflex threshold
Hearing aid
Loudness discomfort level
Plasticity

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10.1097/WNR.0b013e32822025f4

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AB - Hearing aids can induce perceptual changes in some elderly listeners but few studies have investigated physiological changes in this population. Loudness discomfort levels and acoustic reflex thresholds were measured in long-term users of a single hearing aid. The results show an asymmetry of +2 to +9 dB between ears in the sound level that (i) causes loudness discomfort and (ii) elicits a reflex contraction of the middle ear muscles. The elevation of the acoustic reflex threshold occurs in the ear with hearing aid experience, irrespective of the ear of stimulation. Therefore, there is evidence of adaptive plasticity and this can be measured at the level of the auditory brainstem.

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KW - Loudness discomfort level

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Evidence for adaptive plasticity in elderly monaural hearing aid users

Abstract

Keywords

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