questions regarding familiarity, recognition, creation of new neurons, their offshoot, self, and the brain

Saturday morning I awoke when I was scratching my head. I noticed the sound it made. I thought of something like -- Why does it make that sound it makes? That well known sound. Then I started to wonder -- which made me woke finally. Thinking is always a good setting [for me] to get ripped out of the sweetest (and the most horrible dreams), so this one was.

So, fine, scratching my head makes a sound. A familiar sound. One I know really good. Do I? That sound is so familiar I most often not even notice. -- That was what I noticed next: Why didn't I notice it so far? How many times may I have scratched my head up to now? And only now I ask that question. Curious.

Might it be that as soon as we are familiar to a situation/thing we stop asking further questions on that matter? Might this be the cause for why children [apparently] ask about everything? Is their familiarity [with the world] so sparse that recognition can not kick in? Or might it be, recognition itself results in too vague results [for the children]: i.e. results in 1..many nodes which get stimulated to a similar degree, thus automatic ("intuitive") recognizing, that results in a single most probable [represented] item recognized, cannot take place? Therefore, the child has to find that single most probable item consciously, actively? They support recognition by asking grown-ups? And by that support they make a distinct edges become weighted as more important? [I assume, that equals <learning>. The body is able to move a lid or a leg by a pulse of a nerve -- why not move or even grow a neuron's dendrite or axon by basic will?]

If the child, by the approach to weight single edges more important, does not achieve the wanted result, maybe because, after a while, all the edges get weighted equally again [hence the confusion gets as strong as when it was the time before weighting at all], what happens then? Does the child decide -- read: does the child decide, as well as: does the child decide -- one or more new neurons to create?

Or gets this decision made by "the brain"? Or does it cause the creation of new nerve cells without any kind of decision-making, i.e. automatically? Or is it just any single nerve cell which initiates cell division? Or is it not even that single neuron which 'initiates' cell division but plainly begins to divide itself, caused by any external conditions, e.g. biological or chemical ones, which in turn might get caused because there is an obviously needed nerve cell not in place? Might these biological or chemical conditions get caused because neighbouring cells feel some stress and excrete some hormones?

Or might be the reason for new neurons to be created be caused by any neuro biological condition, though? Maybe because nerve cells divide when any of their offshoots -- axons, dendrites -- grew a "too large" tree//braid//knop? And, this rank growth divides itself from the remainder of the very nerve cell?

Or might it be that at some time there's no place left over on the main body of a neuron where any other neurons immediately can dock to, hence dendrites get started to grow? Or the docking nerve cells begin to grow axons, since these might fit between all the other dockers? Or is it that way, the nerve cell gets divided when there's no place left over on the core body of it?
 

PS.: I doubt there is any bird's view instance which decides whether or not to set up any new edge or cell (node). In other words, I doubt "the brain" decides that..anything at all what takes place within the brain itself//brain body, i.e. I doubt there is any other instance in brain but 'self' that makes any decisions regarding brain itself.

      
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