Delimitation of the concepts of "speech", "discourse" and "text" in the light of modern linguistic concepts

As an integrative cross-disciplinary phenomenon, discourse requires critical comprehension in synergistic unity with the differentiating parameters of the text and processes of generation and perception of speech, taking into account ethnopsychological, cultural, linguocognitive and structural-logical factors of communication. The author carries out a comparative analysis of the research of discourse in its correlation with speech and text as macrounits of cognitive and speech activity. Emphasis is placed on the fact that the theory of discourse is currently undergoing fundamental transformations that reflect changes in the conceptual and terminological framework, the emergence of new methodologies and objects of linguistic research. Contrastive description of the triad "speech-discourse-text" is conducted through the prism of semantic-structural, communicative and socio-pragmatic approaches in modern linguistics. The thesis is advanced that discursology, as a cross-disciplinary scientific discipline should possess the objective instruments for analyzing and grading discourse as a subject matter in all national languages. The article provides theoretical generalization of a range of research dedicated to examination of the phenomenology of speech, discourse and text in the light of modern linguistic concepts. Leaning on the thesis on mutual conditionality of structural-semantic parameters of the text, the author carries out a comparative analysis of a number of fundamental theoretical works of foreign and Russian linguists in the field of speech activity, modeling of the psychological processes of speech, as well as semantics of the discourse and semantic structure of the text. The problematic of studying the trichotomy "speech-discourse-text" affects more and more fields of linguistics and expands discursology as a separate scientific discipline. The comparative analysis of terminological units demonstrates that the distributive examination of the concepts of "discourse", "speech" and "text" in modern linguistics is primarily substantiated by the traditional culturological, ontological and methodological factors, and is associated with a variety of approaches, instruments for analysis, and categorical-conceptual framework.