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date: 28 February 2020

Abstract and Keywords

Hearing impairment is a very common disability, and improving the diagnosis and treatment of hearing disorders is the most important application for auditory research. It may arise from genetic deficits or environmental assaults, affecting the normal auditory process. This article deals with the perceptual and functional consequences of hearing impairment at the system level. Damage to any part or parts of the auditory system affects normal processing and produce hearing impairment. Depending upon the degree and the site of damage, different physiological processes may be disrupted, producing not only different degrees of hearing impairment but also different perceptual and functional deficits. This study describes the wide range of hearing disorders, and their underlying physiological and ‘system level’ bases. It discusses the types of hearing impairment, linking structural damages to physiological changes and functional consequences. It also summarizes the different treatments for hearing loss, including exciting recent developments.

Keywords: hearing impairment, auditory process, perceptual deficit, functional deficit, system level bases, structural damages

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