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Hearing loss is a partial or total inability to hear. [5] Hearing loss may be present at birth or acquired at any time afterwards. [6] [7] Hearing loss may occur in one or both ears. [2] In children, hearing problems can affect the ability to acquire spoken language, and in adults it can create difficulties with social interaction and at work. [8]
Hearing aids are electroacoustic devices which are designed to amplify sound for the wearer, usually with the aim of making speech more intelligible, and to correct impaired hearing as measured by audiometry. Some technologies also worth noting are cochlear implants and bone-anchored hearing aids (BAHA), which serve a similar purpose to hearing ...
The International Symbol for Deafness is used to identify facilities with hearing augmentation services, especially assistive listening devices. [4]In a medical context, deafness is defined as a degree of hearing difference such that a person is unable to understand speech, even in the presence of amplification. [1]
The term hard-of-hearing is preferred over hearing-impaired within the American Deaf community and accepted as a neutral term without negative or pathological connotations, with no implication about age of onset. It generally refers to people who depend primarily on a spoken language for communication or who have mild or moderate hearing loss.
People who experience hearing loss after acquiring a mastery of spoken language as well as those who are hard-of-hearing commonly identify with this model. Within the medical model deafness is conceptualized from a "personal tragedy" stance, indicating that it should be avoided, eradicated, or normalized by all possible means. [16]
Hearing loss caused by dysfunction of the outer or middle ear. Cued speech Method of communication that combines speech reading with a system of hand-shapes placed near the mouth to help deaf or hard-of-hearing individuals differentiate words that look similar on the lips (e.g., bunch vs. punch) or are hidden (e.g., gag). Cytomegalovirus ...
A common usage is to aid people who are hard of hearing (HOH) by amplification and providing a better signal to noise ratio (SNR). The ALD may be used to help HOH people hear televisions [1] and other audio devices, [2] or to help people hear speech through public address or sound reinforcement systems, such as in places of worship or lectures.
Language deprivation in deaf and hard-of-hearing children is a delay in language development that occurs when sufficient exposure to language, spoken or signed, is not provided in the first few years of a deaf or hard of hearing child's life, often called the critical or sensitive period. Early intervention, parental involvement, and other ...