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Correlation between speech-evoked auditory brainstem responses and transient evoked otoacoustic emissions
1BASLP Student, All India Institute of Speech and Hearing, Manasagangothri, Mysore, India. baljeetsevenup@gmail.com
Objective:
To investigate the correlation between cochlear processing and brainstem processing.
Method:
Transient evoked otoacoustic emissions and speech-evoked auditory brainstem responses were recorded in 40 ears of normal-hearing individuals aged 18 to 23 years. Correlation analyses compared transient evoked otoacoustic emission parameters with speech-evoked auditory brainstem response parameters.
Results:
There was a significant correlation between speech-evoked auditory brainstem response wave V latency and transient evoked otoacoustic emission global emission strength; there were no other significant correlations between the two tests.
Conclusion:
Tests for transient evoked otoacoustic emissions and speech-evoked auditory brainstem responses provide unique and functionally independent information about the integrity and sensitivity of the auditory system. Therefore, combining both tests will provide a more sensitive clinical battery with which to identify the location of different disorders (e.g. language-based learning impairments and hearing impairments).
