The brain is one system. And if we want to make the model of the system, we must know all parts of it. The problem with the brain models is that there are so many variables that researchers cannot make a fully working model. The fact is that brains are commonly similar to all people.
But there are individual differences. And those differences make a suitable and working universal model of the brain impossible to create.
Researchers can make universal models by interconnecting information from multiple brains. Those models are not working with single individuals. The reason for that is simple.
The researchers created those models by interconnecting information from multiple brains. Those models are averages, their accuracy is not enough for individual cases. They can tell commonly about what the brain is. But they cannot make any individual fitting to those models.
We know that there are cells with axon connections. And neurotransmitters along with electricity that is making the brain. But the fact is that we don't know the exact roles of each cell and cell group in the brain. We know that neurons play the main role in the brain. But also other cell groups like immune cells communicate with neurons.
The role of those cells in the thinking process is unknown. We know that also immune cells can make neurotransmitters. And they can follow the orders of the neurons. But how complicated is this interaction? We don't know what else information cells exchange in that process than the information about the condition of the immune cell.
And another thing is that our entire nervous system can participate in the thinking process. The thing that remains a mystery is the role of neurons that locating outside the brain in this activity.
Dreams are the biggest mystery in the human brain.
Things like dreams are a mystery to us. Why we are spending half of our life sleeping? Why are dreams made like they are? The first question is why we cannot separate reality and dreams.
Dreams are the reality for us when we are sleeping. And there is the possibility that if something can control our dreams, that thing can cause sleep paralysis that can even kill the person in fear. Or if the nightmares are repeating simultaneously that thing can make the person so tired that normal routines are impossible.
In some theories, during history, the REM periods are formed for testing axons and neurons. In that model, REM periods are testing the connection and conditions of the neurons. There is the possibility that nightmares are alarm clocks. Their mission is to tell that everything is not right. The remarkable thing about nightmares is that sometimes people remember nightmares.
But why cannot people remember good dreams? Why are nightmares dominating people? Is it possible that people don't need at least remember good dreams at all?
The simultaneous repeating nightmares have a connection with serious nervous disorders. The níghtmares are also warning a person that something is not all right. And that thing means that dreams must have the mission to analyze observations that people are made during the daytime.
There is the possibility that during deep-sleep is some kind of dream. But that thing is purely speculation. The thing is that REM-dream is only a short period in the sleep period. And the rest of the sleeping time must have some kind of purpose.
During sleep, neurons are working with some kind of problems. But the problem is why we cannot remember those things. The reason why the REM period is a mystery is that this period seems to whip out something else from the cortex and consciousness.
https://scitechdaily.com/predicting-the-behavior-and-health-of-individuals-why-do-brain-models-fail/
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