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Chapter 11
Learners who are deaf or hard of hearing
| Term | Definition |
|---|---|
| Ossicles | 3 tiny bones in the middle ear that helps us hear. They pass the sound vibrations from eardrum to inner ear. |
| Stapes | Sends vibrations to the inner ear. |
| Malleus | Attached to the eardrum. |
| Oval Window | Small membrane covered opening in the middle ear that leads to the inner ear. |
| Incus | Connects the malleus and stapes. |
| Vestibular Mechanism | Located upper portion of the inner ear is responsible for the sense of balance. |
| Cochlea | Snail shaped organ contains the parts necessary to convert the mechanical action of the middle ear into an electrical signal in inner ear that is transmitted to the brain. |
| Otoacoustic Emissions | Test that would measure sounds produced by the inner ear to see how well the cochlea is working. |
| Audiologist | Healthcare professional who tests hearing and helps diagnose and treat hearing problems. |
| Pure-tone audiometry | Hearing test where a person listens to tones at different pitches and volumes to find quietest sounds they can hear. |
| Audiometric zero | The standard reference level used to measure hearing on the audiogram. |
| Speech Audiometry | Test that measures how well a person can hear and understand speech. |
| Speech-reception threshold | Lowest level at which somebody can correctly hear and repeat speech about 50% of the time. |
| Conductive hearing impairment | Hearing loss caused by problems in outer or middle ear that blocks sound from reaching the inner ear. |
| Sensorineural hearing impairment | Hearing loss caused by damage to the inner ear or auditory nerve. |
| Mixed hearing impairment | Combination of conductive and sensorineural hearing loss. |
| External Otitis | Infection of outer ear canal. |
| Otitis Media | Infection or inflammation of middle ear, most likely in children. |
| Connexin-26 gene | Gene that helps with inner ear function; mutations can cause inherited hearing loss. |
| Congenital Cyomegalovirus | Infection present at birth that can cause hearing loss in babies. |
| Cochlear implantation | Surgery where device is placed in inner ear to help people with severe hearing loss hear sounds. |
| Sign Language | Visual language that uses hand movements, facial expressions, and body language to communicate. |
| Oralism manualism debate | Debate about whether deaf people should learn spoken language or sign language. |
| Total communication | Uses all methods of communication, like speech, sign language, visual aids, and gestures. |
| Simultaneous communication | Using speech and sign language at the same time. |
| Bicultural bilingual approach | Teaching deaf people both sign language and spoken while recognizing deaf culture. |
| Auditory-verbal approach | Method that teaches children with hearing loss to use listening and spoken language |
| Auditory-oral approach | |
| Speechreading | |
| Cued speech | |
| Text telephones | |
| Video relay services | |
| Transliteration |