Information is not substance or energy ("Information is Information". Norbert Wiener said). But it can not exist in the absence. Her material substrate. When we think of information as such, we are in view of the newness that she brings us. Old news ", well-known, does not generally constitute information. Information removal undetermination, solves alternatives, dilemmas.
That may be so? It's not like that? - The one who does not have enough information. But she appears, the inflammation, Cepreschimba question signs in exclamation signs. An information is required in terms of quantity (statistic-mathematical, objective), semantic and pragmatic. How much do we find out ? What are we finding out?
What uses us?) The exchange of information takes place between two or more (cybernetic) systems and is called communication. Any communication process has content elements (messages) and operational elements (source, handset, transmission channel). Communication can take place predominantly "in space" or predominantly "in time" (in the schematic (ideal) of any communication process. FATS SCEST The signals - the material material of the message - are required "saved"). Usually, however, the schema looks like this: noise. There are always disturbing processes.
The stages of "metabolism" would, broadly, be: coding. An information received is "translating" into a receptor's own language. Each "analyzer" possesses, as we know, "specializations" different: the ear - hears, the eye - seizes, the nose - smells. Decoding. Deciphering, interpretation, extraction of meaning. Compression. Redundancy is removed (repeat, unnecessary abundance of words, figures, etc.
Due to which the transmission of information resisted to disturbance). Compression comes into play especially when a large amount of information is stored. The abbreviation of texts, phrases, sentences, words are examples of compressing information, redundancy. The fate of new information is well dependent on the information "the" information "of the receiver at the time. In the case of man, who knows many - find many. It seems somewhat paradoxical, in the flagrant contradiction with what the theory of information was said in its beginnings (as for an unknowing all that finds no novelty, it is information),. But then there was no consider increasing the capacity of "decoding" in relation to the pre-preparation of the "receptor14, the possibility of the prepared to decipher several meanings from a scientific news page or from a artwork than a" unintended " .
In the semantic theory of information there is, therefore, the issue of increasingly granting (O-date with knowledge) of the source receptor. Preparation, pre-training of the recipient becomes an essential concern in this context. The "pragmatic" side of the information is in view of its usefulness. When the message allows the system to perform a correct choice in the sphere of response reactions, then we can speak of its "utility". An information, no matter how important, is devoid of pragmatic value if its effect on the system's state is null; The since the normal deviation removed with information is higher, the more "useful" information. What do the information ultimately use? To "adjustments" and "self-regulars".
To increasing the degree of organization. To adaptation, to the complex psychocultural adaptation of man. Human activities are broadly oriented or to obtain a "maximum cystig", a particularly useful acquisition in one domain or the preservation of a fact; Practically, both guidelines can be found concomitantly in human behavior. That conduct in which the only concern remains the maintenance of a trajectory before - and usually by someone else - traced we call regulatory activity. But not only man can adjust processes; Adjustment occurs when in the attractions and rejection forces, for example, the balance appears (the gravity that draws the sun to the sun, and the centrifugal force from the terrestrial rotation that counters it). Adjustments that do not require an intervention outside the given system we have called them self-regulation. They take place both outside and within the human body.
The inverse connections are at the base. A "negative" reverse connection (because it opposes the new trend in the main action), "conservative", that is, will restore the correct trajectory towards achieving the proposed goal. A "positive" reverse connection ensures, it is said, evolution because it emphasizes, "says" the development of new features of the processes that deviate from the pre-established trajectories, from "routine". But the same type of "positive" connection - "Vicious Circles" of Odobleja - facilitates the vertiginous stretch of a fire, proliferation of microbes or abnormal tissues (here is the dialectics of "positive" and "negative" attributes that can turn some in- other).
* Note: Grosu, Eugenia -The masters of the human brain, Albatros Publishing House, 1977