Processing Auditory Info

wave frequency

number of up and down cylces that occur within one second, typically measured as Hertz (Hz)

wave amplitude

how high and low the wavs are, corresponds to waves energy

pinna

outside structure that gathers sound waves into the ear

external auditory canal/meatus

outer ear that funnels waves

eardrum/temporal membrane

moves back and forth in response to pressure difference in sound waves

ossicates

set of three tiny bones

1) stirrup (stapes)

2) hammer (malleus)

3) anvil (incus)

cochela

snail shaped structure containing a basilir membrane filled with fluid and hair cells to carry out transduction

place theory

cochelas basilir membrane plays role with how and where it processes high/low pitches

frequency theory

sound’s pitch determines frequency/number of neural signals in a given interval sent to brain

decibles (dB)

what volume is measured in

sound localization

each ear receives different input so you can tell where the sound is coming from