Place Coding

Question 0

place coding

Answer 0

the physical structure of the basilar membrane influences the neurological response to incoming sound

Question 1

Coding for Frequency

Answer 1

auditory systems codes the frequency of a sound in two ways:

place coding and temporal coding

Question 2

the base

Answer 2

near Oval Window

is narrow and stiff

resonates with/is most displaced by HIGH frequencies

Question 3

the apex

Answer 3

far end of the Cochlea

is wide and floppy

resonates with/is most displaced by LOW frequencies

Question 4

the greater the displacement of the basilar membrane ->

Answer 4

-> the farther the Cilia located at that place will be bent

=> the more NT the Hair Cells will release => the more likely Spiral Ganglions will reach threshold for APs

Question 5

So, a given frequency produces…

Answer 5

… a place of max displacement (and max NT release)

&

adjacent places of less displacement (and less NT release)

Question 6

multiple maxima

Answer 6

auditory (like visual) system does a FOURIER ANALYSIS of sound - filtering multiple, simple, component frequencies