[Please note my theoretical model isn't about a human brain so much as a NN one, also note they are a work in progress, so questions can actually start to alter the theory based upon if the original theory stands up to peer review or not.]
http://www.psycheducation.org/mechanism/introduction to mechanism.htm
Although the example covers depression, it gives you a clue to how the synapses work with transreception of signals.
looking at it would suggest my current theory of how junk DNA is used would be incorrect, it doesn't store the memory. However It could store a Heirarchy map, a pattern matching code that decides on which cells are compatible with it's communication.
I had looked at this preportion before, The theory was actually to do with Languages across the world in relationship to the brain from a metaphysical angle. If the brain sends a signal from one point to another, does it distinguish itself as having an Accent or Foreign language, so as not to trick other regions into stimulation/processing?
In reality it's probably more down to a kind of inverse square logic, where the distance between clusters means they can't hear each other. Again this theory is really for Neural Networks in defining how systems in a parallel processing configuration should be able to comunicate with one another at a low enough bandwidth level to attempt to stop the network from being conjested.
However this brings us back to how information is stored, since it's now defined as not that far into genetics. The only real answer is in how the synapses work, a carrier could be "locked" into position until it's released by a chemical reaction caused by either Time, Heat, Cellular excitement or Enzymatic signal. It provides the "why it's not totally software" because it's using a Quibit system (namely a physical marker rather than floating point operand).
Theorisation here is If you have say 10 people in a room, and you have 5 stand on each side of the room acting as neural transreceivers how do they communicate messages from one to another? in the brain a "vocalised" command is suggested as a chemical switch, however that would suggest that the region between the neural transreceivers is a sea of different chemicals, a flood or noise of commands.
That would mean that a person in the group on one side, speaking to another person on the otherside is speaking out load to the "group", as you can tell with all 10 talking it would create quite noise. It could be suggested that If something important has been said to someone (within this "Broadcast") they would have to stick their fingers in their ears and drown out the continued broadcast. They would have to take a prompt with their eyesight when to release their captured (remembered) command.
My suggestion in the brain however is that the Eyesight trigger is one of these neurotransmitters having an enzyme effect that "unsticks" a "fixed" synapse. This would tie in well with how some anti-psychotic drugs can cause side effects in the human brain, like wiping memory if the drug itself covers the "eyesight trigger" and "unfixes" the markers of memory.
This would all tie in with the localised cluster scenario as another 10 people in another room next door are a faint mummer and don't cause collisions of commands due to their proximity being too distant and muffled to have commands perceived.
A continued suggestion here in the field of neuropsychosis with one of my original points about "waveforms" being a preportion to the this puzzle has to be ommitted.
It's been known for sometime (the beginning of the 20th Century) that studying atoms at the subatomic level had alot of draw backs. One was notibly defined by E. Heisenberg and became known as "The Heisenberg Effect".
It's actual reasoning was about the uncertainty of atomic positioning based upon the technique of subatomic measurement. (I believe it was suggested a photon used to define the location of an electron would alter the course of the electron in regards to where it was "destined to go".).
I bring this up here because if a person has a waveformation event similar to what Heisenberg explained, then the information doesn't arrive at the destination it was suppose to. This could explain absentmindedness/forgetfulness, because where something was suppose to be stored it wasn't placed in the right location due to potential external interaction (.ie. eating food, drinking coffee etc) or a small "networking collision".
Again in the field of Quantum Mechanics,Erwin Schrodinger preposed a theory on Waverformations through the use of his legendary "Schrodingers Cat" theoretical experiment, the experiment itself isn't whats important however some of the theorised outcomes are. One was the duality state of coexistance of the cat based upon the radioactive ingredient within a box.
http://encyclopedia.thefreedictionary.com/Schrodingers cat
In this particular instance, I'm not suggesting there is a radioactive ingredient within the brain, however it is exposed to UV (among other types) of radiation. Interaction of a radio frequency for instance from a mobile telephone could cause a Duality state of a neurotransmitter, it could have a physical existance in one location while also having a electromagnetic background (blackbody) secondary position within the brain causing a paradox. Such paradoxes I believe could be responsible for some forms of psychotraumatic trauma, as the paradoxal state causes a very weird sideeffect since two positions within the brain would be privy to the same signals at the same time, which could be conflicting ones.
This would a difficult one to do in a people in a room experiment, since you would have to generate a parallel of the room, and then you would have to have one person say a Command at the same time thats different in each universe. From the perception of the receiver the one in their own universe will be the loudest Command, however they will too be privy to the Parallel Command causing a "collision". (Collusion being a paradox)
I think in total this is getting near what it is, however keep the questions (and facts) coming as it will clean up any errors in logic.