Perceptual authorization in scientific discourse

The paper presents an attempt to describe the peculiarities of authorizationstructures with perceptual semantics functioning in the texts of scientific works. Owing to agreement of perceptual and speech forms ofactivity in their ontological characteristics, the process and the results of environment perception by humans are reflected in some waysin the structure and content of a text. Such a correlation shows itself if one resorts to composition and meaning analysis of a text andconsists in limiting the amount of the authorized information, the number of characteristics assigned to an object, peculiarities of itsdetailing when describing the objects of sensual and cognitive perception. The authorization structures represent the final stage of theperception process, when the perceived information becomes subject to cognitive processes lying in transformation of sensual informationinto mature knowledge, lose connection with the channel of perception. The limited amount of data perceived by a human at a timeis reflected on the sentence level in the limited number of the sources of information explicated by means of authorization. Inclusion ofmore than one sources of information in one sentence is rare, and such sources of information communicate semantically homogeneousinformation and are related by contraposition, comparison, complementarity or some kind of combined relations. On the sentence levelthe limited amount of information shows itself in detailed description of objects in the authorized structures. These objects have a limitedamount of properties / characteristics. A change in the character of the authorized information from general to particular one as amicrotopic develops is also caused by peculiarities of environmental perception. The reflection of the process of perception in the textmanifests itself in complication of relationship between the sources of information. When moving off from the first sensory phase to thefollowing cognitive phase of perception the processes of segmentation, structuring of the sensorial data, formation of integral worldoutlook take place. These processes cause widening of the zone of the authorized structures semantic influence. Conditionality of perceptionby experience and antecedent forms of mind brings about a tendency to make locatives explicit in the authorized sentences.Marks of places are not common. The significance of marking the channel of perception determines an explicit or implicit type of authorization.That means an unmarked channel of perception causes implication of the authorization and its transition to presupposition.Thus functioning of the authorized structures in the text of a scientific paper reflects the surrounding world perception. Description ofpeculiarities of such reflection in the framework of cognitive and discourse approach contributes to perception of linguistic and extralinguisticfactors of creating and understanding a scientific text.

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