title: Binaural Interaction Component in Speech Evoked Auditory Brainstem Responses.
abstract: OBJECTIVE
  This article aims to describe the characteristics of the binaural interaction component (BIC) of speech-evoked auditory brainstem response (ABR).
  
  
  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%).
  
  
  CONCLUSIONS
  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.
authors.affiliation: Department of Audiology, All India Institute of Speech and Hearing, Mysore, Karnataka, India. kaushlendra.kumar@manipal.edu.
authors.forename: Ajith Kumar
authors.initials: AK
authors.lastname: Uppunda
authors.forename: Jayashree
authors.initials: J
authors.lastname: Bhat
authors.forename: Pearl Edna
authors.initials: PE
authors.lastname: D'costa
authors.forename: Muthu
authors.initials: M
authors.lastname: Raj
authors.forename: Kaushlendra
authors.initials: K
authors.lastname: Kumar
mesh_terms: D000161:Acoustic Stimulation / Q000379:methods; D000293:Adolescent; D000328:Adult; D001307:Auditory Perception / Q000502:physiology*; D016057:Evoked Potentials, Auditory, Brain Stem / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D015203:Reproducibility of Results