How we Hear Flashcards
outer ear
ear structure (auricle)
ear canal
middle ear
tympanic membrane
3 bones (malleus, incus, stapes)
inner ear
semicircular canals
cochlea
acoustic energy (outer)
collects sound waves & directs the sound to travel through the auditory canal
mechanical energy (middle)
as eardrum vibrates from sound waves, the 3 bones push & transmit sound towards inner ear while eustachian tube opens into pharynx & permits air pressure to equalize b/wn ear & outside air
congenital and acquired hearing loss
congenital: birth, ear missing
acquired: loss through damage
types of hearing loss
CONDUCTIVE HEARING LOSS
otitis media-ear infection
cerumen blockage-ear wax build up
foreign objects
malformations
types of hearing loss
SENSORINEURAL HEARING LOSS
damage to cochlea or auditory nerve
most common
reduction in loudness
amplification/intervention
infant screening
ear buds placed in babies’ ear to provide reflexive response
if failed
wait 2 wks, audiologist specialist
impact of hearing loss
ch. aren’t taught speech & language
learn lang when immersed through incidental learning
deaf/hoh might need significant and intensive intervention
advantages to early use of hearing aids or cochlear implants
auditory neuroplasticity & dev’t synchrony
language impacts for children w/ hearing loss
-semantics: struggle w/ connector words, abstract concepts
-phonology: reteaching of sounds, slower, monotone
-morphology: less intensity
-pragmatics: miss on subtle commun. cues
additional hearing supports
sound-treated rooms, sound field sys., personal FM sys.
electrical energy (inner)
Your hearing (auditory) nerve delivers the energy to your brain as sound, making it possible for you to hear.
