scholarly journals Normative Study of the Binaural Interaction Component of the Human Auditory Brainstem Response as a Function of Interaural Time Differences

2020 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Carol A. Sammeth ◽  
Nathaniel T. Greene ◽  
Andrew D. Brown ◽  
Daniel J. Tollin
Keyword(s):  
Auditory Brainstem Response ◽  
Auditory Brainstem ◽  
Normative Study ◽  
Interaural Time Differences ◽  
Binaural Interaction ◽  
Brainstem Response ◽  
Interaction Component

scholarly journals The Binaural Interaction Component of the Auditory Brainstem Response Under Precedence Effect Conditions

2020 ◽  
Vol 24 ◽  
pp. 233121652094613
Author(s):  
Kelly Dean ◽  
John H. Grose
Keyword(s):  
Auditory Brainstem Response ◽  
Interaural Time Difference ◽  
Auditory Brainstem ◽  
Auditory Brainstem Responses ◽  
Precedence Effect ◽  
Binaural Processing ◽  
Binaural Interaction ◽  
Brainstem Response ◽  
Echo Suppression ◽  
Interaction Component

The purpose of this study was to measure the binaural interaction component (BIC) derived from click-evoked auditory brainstem responses (ABRs) using stimuli configured to elicit the Precedence Effect. The hypothesis was that the contribution of binaural processing to echo suppression can be evidenced by a diminished or absent BIC associated with the echo. Ten normal-hearing young adults provided ABRs generated by sequences of click pairs. Results showed that BICs elicited by diotic clicks in isolation were obliterated when those diotic clicks were preceded by a click pair having an interaural time difference of 400 µs and where the interclick interval was 8.4 ms. The presence of the leading click pair increased the latency of the ABR generated by the lagging diotic click pair but did not decrease its amplitude. The results were interpreted as indicating a contribution of binaural processing at the level of the brainstem to echo suppression, at least for the conditions tested here.

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