Hearing loss can result from disorders or damage to the ear (peripheral auditory system) or the brain (central auditory system). Here, the basic structure and function of the central auditory system will be highlighted as relevant to cases of permanent hearing loss where assistive devices (hearing aids) are called for. The parts of the brain used for hearing are altered in two basic ways in instances of hearing loss: (1) Damage to the ear can reduce the number and nature of input channels that the brainstem receives from the ear, causing plasticity of the central auditory system. This plasticity may partially compensate for the peripheral loss, or add new abnormalities such as distorted speech processing or tinnitus. (2) In some situations, damage to the brain can occur independently of the ear, as may occur in cases of head trauma, tumors or aging. Implications of deficits to the central auditory system for speech perception in noise, hearing aid use and future innovative circuit designs will be provided to set the stage for subsequent presentations in this special educational session. [Work supported by NIA‐NIH Grant P01 AG09524 and the International Center for Hearing & Speech Research, Rochester, NY.]
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April 2003
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April 01 2003
Hearing loss and the central auditory system: Implications for hearing aids
Robert D. Frisina
Robert D. Frisina
Otolaryngol. Div., Univ. of Rochester Med. School, 601 Elmwood Ave., Rochester, NY 14642‐8629
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J. Acoust. Soc. Am. 113, 2220 (2003)
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Robert D. Frisina; Hearing loss and the central auditory system: Implications for hearing aids. J. Acoust. Soc. Am. 1 April 2003; 113 (4_Supplement): 2220. https://doi.org/10.1121/1.4780276
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