Binaural interaction component in children at risk for central auditory processing disorders

Abstract

The binaural interaction component (BIC) occurring in the latency range of peak V of the auditory brainstem responses (ABR) was investigated in nine normal children, comprising the control group, and nine children at risk for central auditory processing disorders (CAPD), comprising the CAPD group. All children tested had normal hearing, normal intelligence and normal ABR thresholds. Averaged BIC obtained from the difference between the summed and binaural ABR waveforms was compared between the two groups for amplitude and latency measures. Results indicated a significant reduction in the amplitude of the BIC occurring in the latency domain of ABR peak V, in the CAPD group.