The mystery of sleep

Solving all fully the mystery of sleep, science tore the veil of mystery and his most entertaining companion - dreams. Briefly acquainted with modern ideas on the nature of sleep, we are now able to fully devote myself to the world of night paintings and events.
We already know that dreams visited us mainly in the state of REM sleep. Why do they occur? Born because they nerve traces and the connections between them, particles of deposits of past impressions are exempt from state braking. It is clear that if revive some footage of our "film", we see that they were sealed. Of course, the comparison of the film are shown for illustration purposes only. Funny it would be to seriously compare such complex living organ, the brain, and such a simple object as a film. However, for clarity of presentation, this example can be used.
The above explanation makes you do the following important conclusion: the dream can only what you already have in mind; there's nothing else we can't see! Vivid proof of this are the observations of people, blind from the first day of life. They don't dream in the usual sense of the word. They are in a dream feel different things, feel the sounds, smells, but I see nothing in his sleep, for I saw nothing in life such personnel for their "brain film" not filmed. Even those who in childhood had seen, but later lost sight, lose the visual picture in a dream.
In response to the expressed approval of the skeptic will immediately say that if in a dream emerges only what is already in the brain, why dreams will never be exactly reproduce the former; and one could argue the opposite - dream, as a rule, what was not. As said by I. S. Sechenov, dreaming is only an unprecedented combination of seasoned experience.
In other words, the question, what are dreams were or were not, cannot be answered unambiguously. On the one hand, it were, for all the impressions which come up in dream consciousness, taken from the storehouse of our memory. On the other hand, it were not for the combined experience as they had not been met. It is a kind of mix of seasoned experience. All parts are available in our brain store, but they mixed in a bizarre way.
Referring to the character alive in a dream images, you can ask a legitimate question: why some people dream in colours, while others do not? This is due to a greater or lesser role, what color plays in the life of this man. Take, for example, artists. There are painters who are not difficult to imagine the picture of reality without colors, see it in color. There are graphic artists, who all his life writing in black and white. In the first plan, not colors drawing the outlines of the subject. Simple everyday situation may also explain the differences between people on the question. Ask a passer-by, how to get to school № 5. One will say, "there's a four-storey building with columns, it has two cars". Another will say, "But brown building". It is important for the color, not the shape. Immediately clear which of these two people sees color, who is black-and-white dreams.
Although the content of dreams is entirely determined by the experiences accumulated during many years of life, consciousness sleepy and non sleeping significantly different. In the dream, your perception of the world is much more imaginative and emotional. We see a different picture, worried about them, and to understand properly can't. We must assume that the synchronization mechanisms that prevail in sleepy brain, mostly associated with the first signal system and emotional sphere. Not accidentally sleep is called the Kingdom of our emotions. Mechanisms of the second signal system related to the abstraction, speech and thinking in the dream operate much weaker. Recent data suggest that hemispheres of the brain in this plan are not equal. The right hemisphere is associated with imaginative thinking and in his sleep plays a leading role. The left hemisphere, where we have and the speech center, tends to consolidated thinking and in the dream state is less active.