Binaural Interaction Component in Speech Evoked Auditory Brainstem Responses

Uppunda, Ajith Kumar and Bhat, Jayashree S. and D’Costa, Pearl Edna and *, Muthu Raj and *, Kaushlendra Kumar (2015) Binaural Interaction Component in Speech Evoked Auditory Brainstem Responses. Journal of International Advanced Otology, 11 (2). pp. 114-117.

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OBJECTIVE: This article aims to describe the characteristics of the binaural interaction component (BIC) of speech-evoked auditory brainstem response (ABR). MATERIALS and METHODS: All 15 subjects had normal peripheral hearing sensitivity. ABRs were elicited by speech stimulus /da/. RESULTS: The first BIC (BIC-SP1) in the speech-evoked ABR occurred at around 6 ms in the region of peak V. The second BIC (BIC-SP2) was present around 8 ms in the latency region of peak A. The third and fourth BICs of speech-evoked ABR (BIC-SP3 & BIC-SP4) were observed at around 36 ms and 46 ms, respectively, in the latency regions of peaks E and F, respectively. BIC-SP1 and BIC-SP2 were present in all subjects tested (100%), whereas BIC-SP3 and BIC-SP4 were present in 11 (73%). CONCLUSION: Because ABRs are not affected by sleep and mature early, this tool can be evaluated in identifying binaural interaction in younger and difficult-to-test populations.

Item Type: Article
Uncontrolled Keywords: Binaural interaction component, auditory brainstem response, speech, latency, amplitude
Subjects: Allied Health > Mangalore Campus > Speech and Hearing
Depositing User: KMCMLR User
Date Deposited: 28 Sep 2015 12:03
Last Modified: 28 Sep 2015 12:03

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