Evaluation of aided binaural processing in children with hearing impairment by integration and segregation tasks

Authors

  • Tatsuo Nakagawa Yokohama National University, Faculty of Education and Human Sciences, 79-2 Tokiwadai Hodogaya-ku, Yokohama 240-8501, Japan

Abstract

Aided binaural processing in children with various hearing levels was evaluated using binaural integration and segregation tasks. The binaural integration task evaluated children’s integration of low-pass and high-pass ltered words. The binaural segregation task compared children’s performance between monaural and binaural listening conditions. In the monaural listening condition, words were mixed with speech-shaped noise with different signal-to-noise ratios (SNRs). In the binaural listening condition the speech plus noise was delivered through different speakers with the same SNR. Children’s word-identi cation scores were compared for these two conditions. Results indicated that for the binaural integration and segregation tasks, children with symmetrical hearing loss less than 90 dB HL performed well. However, if the hearing levels were greater than 90 dB HL performance on binaural listening tasks decreased even if the child was wearing hearing aids on both ears. If there was a large difference in hearing level between the ears and the child was aided unilaterally, the results indicated dif culty in identifying words in varying degrees of noise.

References

Jerger, J., Silman, S., Lew H. L., and Chmiel, R. (1993). “Case studies in binaural interference: converging evidence from behavioural and electrophysiologic measures,” J Am Acad Audiol 4, 122-131.

Mencher, G. T., and Davis, A. (2006). “Bilateral or unilateral ampli cation: is there a difference? A brief tutorial,” Int J Audiol 45, S1-S11.

Additional Files

Published

2009-12-15

How to Cite

Nakagawa, T. (2009). Evaluation of aided binaural processing in children with hearing impairment by integration and segregation tasks. Proceedings of the International Symposium on Auditory and Audiological Research, 2, 523–530. Retrieved from https://proceedings.isaar.eu/index.php/isaarproc/article/view/2009-54

Issue

Vol. 2 (2009): Binaural Processing and Spatial Hearing

Section

2009/4. Recent concepts in binaural cochlear-implant and hearing-aid processing

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