Binaural Interaction Component in Speech Evoked Auditory Brainstem Responses

Ajith K umar Uppunda, Jayashree Bhat, Pearl E dna D'costa, Muthu Raj P, Kaushlendra Kumar

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)114-117
Number of pages4
JournalThe journal of international advanced otology
Issue number2
Publication statusPublished - 01-08-2015

All Science Journal Classification (ASJC) codes

  • Medicine(all)


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