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


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Tokgoz-Yilmaz S. , SENNAROĞLU G. , SENNAROĞLU L. , Koese S. K.

JOURNAL OF LARYNGOLOGY AND OTOLOGY, cilt.121, ss.1029-1034, 2007 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 121 Konu: 11
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1017/s0022215107006883
  • Dergi Adı: JOURNAL OF LARYNGOLOGY AND OTOLOGY
  • Sayfa Sayıları: ss.1029-1034

Özet

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.

 

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.

Key words: Central Auditory Diseases; Age Factors; Cochlea; Speech Acoustics