Effect of age on speech recognition in noise and on contralateral transient evoked otoacoustic emission suppression.

Full Abstract

INTRODUCTION:
We aimed to study the influence of age, in normal hearing individuals, on:
the masking level difference test, the speech recognition in noise test, the transient evoked otoacoustic emissions test, and the contralateral transient evoked otoacoustic emission suppression test. We also aimed to research the effect of age when using these tests to evaluate the central auditory nervous system.

METHODS:
Transient evoked otoacoustic emissions and contralateral transient evoked otoacoustic emission suppression were measured in all subjects. Subjects also underwent masking level difference and speech recognition in noise tests.

RESULTS:
We found a decrease in transient evoked otoacoustic emission amplitudes, speech recognition in noise scores and hearing thresholds with age. We also found that higher masking level difference values were associated with lower speech recognition in noise scores and contralateral transient evoked otoacoustic emission suppression values.

CONCLUSION:
We conclude that decreasing speech recognition in noise scores are associated with decreasing contralateral transient evoked otoacoustic emission supression values. This effect may be related to medial efferent system dysfunction.

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Author information

Author/s: Yilmaz, S T (ST); Sennaroglu, G (G); Sennaroglu, L (L); Köse, S K (SK);

Affiliation: Dikimevi Vocational School of Health, Ankara, Turkey. sunatokgoz(-atsign-)yahoo.com

Journal and publication information

Publication Type: Journal Article

Journal: The Journal of laryngology and otology (J Laryngol Otol), published in England. (Language: eng)

Reference: 2007-Nov; vol 121 (issue 11) : pp 1029-34

Dates: Created 2007/10/26; Completed 2008/04/01;

PMID: 17381896, status: MEDLINE (last retrieval date: 12/26/2008)

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Acoustic Stimulation
Adolescent
Adult
Age Factors
Aged
Aging - physiology
Auditory Threshold - physiology
Child
Cochlea - physiology

Cochlea - physiology
Evoked Potentials, Auditory, Brain Stem
Female
Humans
Male
Middle Aged
Otoacoustic Emissions, Spontaneous - physiology
Speech Perception - physiology
Speech Reception Threshold Test - methods

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