Objective 15 & 16Objective 15 & 16

Hearing Loss and Deaf Hearing Loss and Deaf CultureCulture

By: Tiera HendersonBy: Tiera Henderson

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Brittani VinsonBrittani Vinson

The Ear !!.The Ear !!.

The ear’s The ear’s intricate and intricate and delicate delicate structure structure makes it makes it vulnerable to vulnerable to damagedamage

UHHHH -- OHHHH….UHHHH -- OHHHH….

There are two types of hearing loss: There are two types of hearing loss: Conduction hearing loss, and Conduction hearing loss, and Sensorineural hearing loss (nerve Sensorineural hearing loss (nerve deafness)deafness)

Conduction Hearing LossConduction Hearing Loss ……occurs when there is damage to the occurs when there is damage to the

mechanical systems that conducts the waves to mechanical systems that conducts the waves to the cochlea..the cochlea..

This image demonstrates conduction hearing loss.

Sensorineural Hearing LossSensorineural Hearing Loss

……occurs when there is damage to the cochlea’s occurs when there is damage to the cochlea’s receptor cells or to the auditory nerves..receptor cells or to the auditory nerves..

This image shows severe hearing loss from 20 dB Hl to about 75 dB Hl in both ears.

……but that’s but that’s okok Once damaged or destroyed, a hearing aid can still be Once damaged or destroyed, a hearing aid can still be

used to amplify enough sound to stimulate neighboring used to amplify enough sound to stimulate neighboring hair cells; scientists believe that someday they can be hair cells; scientists believe that someday they can be able to trick the human cochlea into regenerating hair able to trick the human cochlea into regenerating hair cells – thereby restore hearing as well.cells – thereby restore hearing as well.

Cochlear ImplantsCochlear Implants ..a bionic ear ..a bionic ear

used to restore used to restore hearing for hearing for people with nerve people with nerve deafness; it’s a deafness; it’s a device for device for converting converting sounds into sounds into electrical signals electrical signals and stimulating and stimulating the auditory the auditory nerve through nerve through electrodes electrodes threaded into the threaded into the cochlea…cochlea…

Studies have shown..Studies have shown.. Cochlear implants help children become proficient in oral Cochlear implants help children become proficient in oral

communication and help children become less distractive and impulsivecommunication and help children become less distractive and impulsive

THE GOOD THE GOOD STUFF !.STUFF !.

Sign LanguageSign LanguageSign is a language with its own Sign is a language with its own

grammar, syntax, and sematics; grammar, syntax, and sematics; Some schools and families help deaf Some schools and families help deaf children become bilingual in sign and children become bilingual in sign and in the culture’s spoken and written in the culture’s spoken and written languagelanguage

Some research..Some research..

Among people who experience Among people who experience hearing loss, the National Center for hearing loss, the National Center for Health Statistics estimate that ONLY Health Statistics estimate that ONLY 1 % were born deaf..1 % were born deaf..

Sensory CompensationSensory Compensation

People who lose one channel of sensation (such People who lose one channel of sensation (such as vision, auditory, etc.) do seem to compensate as vision, auditory, etc.) do seem to compensate with a slight enhancement of their other sensory with a slight enhancement of their other sensory abilitiesabilities

Other important sensesOther important senses

In most humans, the major senses are In most humans, the major senses are seeing and hearing; we depend on them seeing and hearing; we depend on them particularly for communicationsparticularly for communications

CAST !.CAST !.

Tiera …………… Kinko DeBargeTiera …………… Kinko DeBargeBrittani…………. Lil TwinBrittani…………. Lil Twin

~ Thank You ~~ Thank You ~

THE END !.THE END !.