how human dream works? What kind of chemical process perform during dream?

Answer 1

It is unknown where in the brain dreams originate — if there is such a single location — or why dreams occur at all. However, there are many competing theories of the neurology of dreams.

During a typical lifetime a person spends about 6 years dreaming[1] (which is about 2 hours each night[2]).

The activation synthesis theory developed by Allan Hobson and Robert McCarley asserts that the sensory experiences are fabricated by the cortex as a means of interpreting random signals from the pons. They propose that in REM sleep, the ascending cholinergic PGO (ponto-geniculo-occipital) waves stimulate higher midbrain and forebrain cortical structures, producing rapid eye movements. The activated forebrain then synthesizes the dream out of this internally generated information. They assume that the same structures that induce REM sleep also generate sensory information.[3] Memory, attention and the other features lacking in the dream state are taken to depend on the neurotransmitters norepinephrine and serotonin, which are present in reduced concentrations during REM sleep. This chemical change is hypothesized to produce a psychotic state, as well as a lack of orientation.

Answer 2

Dreams are common to a lot of animals, not just humans, and they seem to be the brain processing information and categorizing it, much like the disk clean-up on you pc.
After the dreams, your mind works better, as does your body.
Many of the chemical processes of the body are changed during dreaming, and each is according to the content of the dream. For example, running dreams require a release of adrenalin. Sexy dreams make other chemicals be released.

Answer 3

Ernest Hartmann, M.D.*

Abstract: Based on dreams after trauma and other recent research a view of the nature of dreaming is developed along the following lines. Dreaming makes connections more broadly than waking in the nets of the mind. Dreaming avoids the "central" rapid input-to-output portions of the net and the feed-forward mode of functioning; it makes connections in the further out regions (further from input/output) and in an auto-associative mode. Dreaming produces more generic and less specific imagery. Dreaming cross-connects. The connections are not made in a random fashion; they are guided by the emotion of the dreamer. Dreaming contextualizes a dominant emotion or emotional concern. This is demonstrated most clearly in dreams after trauma as the trauma resolves but can likewise be seen in dreams after stress, in pregnancy, and in other situations where the dominant emotional concern is known. The form that these connections and contextualizations take is explanatory metaphor. The dream, or the striking dream image, explains metaphorically the emotional state of the dreamer. This entire process is probably functional. The dream functions to spread out excitation or reduce "computational energy" and does this by cross-connecting and "weaving-in". This has an immediate function in "calming a storm" or reducing a disturbance, and a longer term function relating to memory—not so much consolidating memory but rather cross-connecting, weaving in something new, increasing the connections.

KEY WORDS: dreaming; dreams; Connectionist nets; psychotherapy; metaphor.



In some senses we know a great deal about dreaming. As a psychotherapist and psychoanalyst I have worked with my patients' dreams and my own dreams for many years and I know that dreams can be immensely useful in therapy and in self knowledge. I do not question that dreams are the royal road to the unconscious; but this tells me little about what a dream really is—the nature of the dream. I have also worked for many years on the biology of REM sleep and I believe we now understand quite well the biology of the underlying state which is the best (though not the only) substrate for dreaming. This is essential knowledge and it provides some basic facts about conditions underlying dreaming; but it does not tell us what dreaming is.

In some senses, we know very little about dreaming. We still have not agreed on its basic nature. I have recently been exploring a new approach to dreaming based on work with dreams after trauma, among other studies, and a new model of the mind. This has led to some revised formulations of the nature and also the possible functions of dreaming. The functions I arrive at are very close to those suggested by many others starting from different data, so what I am doing here is outlining a contemporary approach to the basic nature and functions of dreaming.



DREAMING MAKES CONNECTIONS

First of all, dreaming connects. Dreaming makes connections and it does this extremely broadly. At a clinical or everyday level, one can hardly disagree with this. For some, dreaming obviously makes beautiful and interesting connections; but even those who believe dreaming throws things together in a more or less random fashion must admit that a dream image somehow connects material in our memories, imaginations, etc. Clearly dreaming makes connections between recently experienced material (day residue) and old memories; dreaming often puts together or combines two different people, two different places, two different parts of our lives in the mechanism Freud refers to as condensation.

This tendency of dreaming to make connections very broadly or widely has been frequently noted. For instance, Erik Craig (1992) puts it, "While dreaming we entertain a wider range of human possibilities than when awake; the 'open house' of dreaming is less guarded." Elizabeth Campbell (1987) says, "Anything can happen in a dream. There are no boundaries." Many have simply called dreaming "hyperconnective." Of course, "broadly" is not necessarily a self evident term; as we shall see below, dreaming makes connections "broadly" in many senses but may also avoid certain regions of our minds.

Answer 4

Dreams are random electircal impulses flowing through your brain while you sleep and your brain is trying to make sense of them.... your mind often turns the randomly triggered thoughts into a story and adds in other expereinces and memories. Dreams are far out!

Answer 5

Dreams are not hit or miss. Many dreams are not accidental. Dreams can constitute a form of teaching, one that is needed by the dreamer.

Answer 6

My opinion. I believe the mind is at work even while you are asleep. The mind sends a message to your eyes and the
inside of your eyelid is your screen. Try this while awake.
Close your eyes and think of something in your life. If you really concentrate on the back of your eyelid you might be able to see
images. You might say I am crazy, but I am serious.

Answer 7

you have upwards of 5 dreams a night average, and they each last from 5-10 seconds usually.

Answer 8

n they dream up to 6 dreams per nite.

Answer 9

Dreams are like a cocktail: a shot of acetylcysteine, a shot of norepinephrine, with just a twist of serotonin. ---Shaken, not stirred!

Answer 10

nobody still figured out that's coming in the future.