Sunday, September 11, 2016

Frequency modulation in neurons

Imagine a neuron as a tube that holds charged ions and the end ofthe neuron release  neuro transmitters at a rate proportional to the charge within the neuron.


The dendrites build up charge that mves down the axon, and the buttons at the end fire in response to charge density.  Look at the dendrites.  They obey the classic behavior of local groups spreading out,  seeking the optimum spread, like roots of a tree.  That is a symmetric encoding graph, no doubt about is.  Ity will appear close to Shannon cannonical form, a twos bit decoder.

Some of these drive drive he vocal folds allowing us to sing pitch.  The vocal folds open and close and induce harmonic motion, at higher frequencies, in the vocal chords; a passive function performed by astable wave in a chamber that is harmonic to a higher frequency.

Why is pitch magically an octave?

Because the theory of everything dictates that redundancy is removed, and that leaves the dendrites in cannonical form, meaning they closely match yhe Shannon limit. The dendrite graph will tend to  binary, symmetric spanning tree, the charge potential will shows two complement quantization.

It is not magic, it is combinatorial,  Evolution will select the combinations that get the most dynamics with the least number of neural channels.  Count the simple ways to partition into the prime groups, and soon you are up to  eight partitions, and evolution can never sustain a jump to 24 or 32.

Our concept of chords is culturally driven.  We have a finite set of positions for our vocal chords, we are quantized.  So, we have to agree on how to allocate this finite set of tones we can make, then practice the cultural standard.

How do we listen topitch?
Smae method, except we don't really breathe.  The choclea still works as part of the echo chamber., when we used our trained voice.   So the brain just repeats the singing process, firing the vocal folds but we are careful not to breathe up to singing threshold.  Hence the vocal folds do not flap, otherwise we are singing away.  Popular songs about everyday life train us.


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