The Auditory System Flashcards
What are sound waves?
Sound wave: Oscillating movement in the air caused by vibrations of objects
in the environment
What is a wave length?
wave to wave
What is amplitude?
Height of wave
What is in the outer ear?
- Pinna
- Ear canal
What does the outer ear do?
Collects and focuses sound waves
What does the Middle ear do?
Transfers and amplifies sound vibrations from outside (air) to inside (fluid)
What is in the middle ear?
- Ossicles
1. Malleus
2. Incus
3. Stapes
What do Hearing aids do?
amplify sounds
What does the inner ear do?
Converts sound vibrations into neural signal
What are the parts of the inner ear?
- Cochlea
- Basilar membrane
- Auditory nerve
What are Cochlear implants?
deliver sound directly to the auditory nerve
What is the Tonotonic map?
Location based on frequency of sound
What is frequency perceived as?
pitch
What is amplitude perceived as?
Loudness
What are Auditory Objects?
Objects where noise comes from
Ex. birds