05:300:383 Lecture Notes - Lecture 10: Congenital Disorder, Deaf Culture, Audiometry
25 Apr 2018
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Document Summary
Historical context: debates about the better methods of communication (manual or oral) originated in the. 1880s between edward gallaudet and alexander graham bell: the battery-operated hearing aid was developed after wwii, the behind-the-ear hearing aid was developed after the transistor was created in the. Types of hearing loss: conductive hearing loss, sound waves cannot travel to the inner ear, sensorineural hearing loss, this type of loss is caused by damage to the inner ear or auditory nerve. Degree of hearing loss: mild: 21-40 db, moderate: 41-55 db, moderately severe: 56-70 db, severe: 71-90 db, profound: 91+ db. Characteristics: the only commonality of people who are deaf or hearing impaired that is hearing is limited. Causes and prevention: known causes (most unknown, heredity and genetics, meningitis, otitis media, noise, prevention, noise abatement, immunizations. Intervention before six months results in better reading achievement and speech abilities.
