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Quantitative Assessment of Cortical Auditory-tactile Processing in Children with Disabilities
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Binaural interaction component in children at risk for central auditory processing disorders

K V Gopal1, K Pierel

  • 1Department of Speech and Hearing Sciences, University of North Texas, Denton 76203-5010, USA. gopal@unt.edu

Scandinavian Audiology
|June 29, 1999
PubMed

Insights

Children at risk for central auditory processing disorders (CAPD) show reduced binaural interaction component (BIC) amplitude in auditory brainstem responses (ABR). This finding highlights potential auditory processing differences in at-risk children.

Area of Science:

  • Neuroscience
  • Audiology
  • Developmental Pediatrics

Background:

  • Central auditory processing disorders (CAPD) affect sound interpretation.
  • Auditory brainstem responses (ABR) assess neural pathway function.
  • Binaural interaction component (BIC) reflects sound integration in the brainstem.

Purpose of the Study:

  • To investigate the binaural interaction component (BIC) in children with and without risk for CAPD.
  • To compare BIC amplitude and latency in auditory brainstem responses (ABR) between groups.

Main Methods:

  • Investigated nine normal children and nine children at risk for CAPD.
  • All children had normal hearing, intelligence, and ABR thresholds.
  • Calculated averaged BIC from ABR waveforms and compared amplitude and latency.

Main Results:

  • A significant reduction in BIC amplitude was observed in children at risk for CAPD.
  • This reduction occurred in the latency range of ABR peak V.
  • No significant differences in latency were reported.

Conclusions:

  • Children at risk for CAPD exhibit altered binaural processing.
  • Reduced BIC amplitude may indicate central auditory processing deficits.
  • ABR-based BIC assessment is a potential tool for identifying auditory processing issues.

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