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Trends in Amplification, Vol. 11, No. 4, 259-272 (2007)
DOI: 10.1177/1084713807308209

Effect of Dual Sensory Loss on Auditory Localization: Implications for Intervention

Helen J. Simon, PhD

Smith-Kettlewell Eye Research Institute, San Francisco, California, helen{at}ski.org

Harry Levitt, PhD

VA RR&D National Center for Rehabilitative Auditory Research, Portland, Oregon

Our sensory systems are remarkable in several respects. They are extremely sensitive, they each perform more than one function, and they interact in a complementary way, thereby providing a high degree of redundancy that is particularly helpful should one or more sensory systems be impaired. In this article, the problem of dual hearing and vision loss is addressed. A brief description is provided on the use of auditory cues in vision loss, the use of visual cues in hearing loss, and the additional difficulties encountered when both sensory systems are impaired. A major focus of this article is the use of sound localization by normal hearing, hearing impaired, and blind individuals and the special problem of sound localization in people with dual sensory loss.

Key Words: sound localization • low vision • interaural difference cues • bilateral hearing aids • directional hearing aids


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