Phase locking is used for sound frequencies up to around 1000 hz. at higher frequencies, tonotopy is used. the note "concert pitch a", or 440 hz, is commonly used to tune instruments in an orchestra or musical ensemble. if an instrument is playing concert pitch a, how fast are action potential spikes in the auditory nerve?
(a) 440 hz
(b) 1100 hz
(c) 1000 - 440 = 60 hz
(d) this is a trick question. action potentials are all-or-none and therefore do not change of change frequencies.

answer; ///i believe that the correct answer is (a) specialized cells)

a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.

not sure if this what   you'r looking for would be percent composition