The role of the medial olivocochlear system in the complaints of understanding speech in noisy environments by individuals with normal hearing

AURIS NASUS LARYNX, cilt.40, sa.6, ss.521-524, 2013 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 40 Sayı: 6
Basım Tarihi: 2013
Doi Numarası: 10.1016/j.anl.2013.04.003
Dergi Adı: AURIS NASUS LARYNX
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
Sayfa Sayıları: ss.521-524
Anahtar Kelimeler: Transient evoked otoacoustic emission, Speech recognition in noise, Contralateral suppression, EVOKED OTOACOUSTIC EMISSIONS, CONTRALATERAL SUPPRESSION, EFFERENT SYSTEM, HUMANS, REFLEX, BUNDLE, AGE, INTELLIGIBILITY, COMPREHENSION, RECOGNITION
Ankara Üniversitesi Adresli: Evet

Objective: The aim of our study is to investigate the relationship between the complaint of speech

understanding in noisy environments and the findings of contralateral suppression of transient evoked

otoacoustic emissions and speech recognition in noise test methods in individuals with normal hearing.

Methods: Sixty-nine subjects between 18 and 53 years of age with normal hearing participated in the

present study. The subjects were assigned to one of two groups, reported difficulty understanding speech

in noise or no reported difficulty understanding speech in noise. After hearing and immitancemetric

evaluation, contralateral suppression of transient evoked otoacoustic emissions and speech recognition

in noise tests were administered to both groups. Suppression was calculated in half-octave frequency

bands centered at 1.0, 1.5, 2.0, 3.0 and 4.0 kHz.

Results: We found out that the speech recognition in noise scores and contralateral suppression values

were lower in subjects with the complaint of speech understanding in noise than those who do not have

such complaints.

Conclusions: We concluded that the complaint of speech understanding in noise may be related to the

medial efferent system dysfunction, so central auditory nervous system.