Roman Jakobson in the context of "Structural linguistics"

Roman Jakobson defined six functions of language (or communication functions), according to which an effective act of verbal communication can be described. Each of the functions has an associated factor. For this work, Jakobson was influenced by Karl Bühler's organon model, to which he added the poetic, phatic and metalingual functions.

Russian formalism was a school of literary theory in Russia from the 1910s to the 1930s. It includes the work of a number of highly influential Russian and Soviet scholars, such as Viktor Shklovsky, Yuri Tynianov, Vladimir Propp, Boris Eikhenbaum, Roman Jakobson, Boris Tomashevsky, and Grigory Gukovsky, who revolutionised literary criticism between 1914 and the 1930s by establishing the specificity and autonomy of poetic language and literature. Russian formalism exerted a major influence on thinkers like Mikhail Bakhtin and Juri Lotman as well as on structuralism as a whole. The movement's members had a large impact on modern literary criticism as it developed in the structuralist and post-structuralist periods. Under Stalin it became a pejorative term for elitist art.

Russian formalism was a diverse movement, producing no unified doctrine, and no consensus amongst its proponents on a central aim to their endeavours. In fact, "Russian Formalism" describes two distinct movements: the OPOJAZ (Obshchestvo Izucheniia Poeticheskogo Yazyka, Society for the Study of Poetic Language) in St. Petersburg and the Moscow Linguistic Circle. Therefore, it is more precise to refer to the "Russian Formalists," rather than to use the broader and more abstract term of "Formalism."

The organon model is a model of communication by German psychologist and linguist Karl Ludwig Bühler (1879 – 1963). It was published in German in 1934. and not translated into English until 1990. In it he defined the functions of communication according to which linguistic communication can be described. Bühler's work influenced the communication model of Roman Jakobson.

Buhler's model also apparently influenced Lev Vygotsky who, in discussing memory and goal-directed learning, wrote: "According to K. Buhler, speech thinks for us."

In linguistics, a phatic expression (English: /ˈfætɪk/, FAT-ik) is a communication which primarily serves to establish or maintain social relationships. In other words, phatic expressions have mostly socio-pragmatic rather than semantic functions. They can be observed in everyday conversational exchanges, as in, for instance, exchanges of social pleasantries that do not seek or offer information of intrinsic value but rather signal willingness to observe conventional local expectations for politeness.

Other uses of the term include the category of "small talk" (conversation for its own sake) in speech communication, where it is also called social grooming. In Roman Jakobson's typology of communication functions, the 'phatic' function of language concerns the channel of communication; for instance, when one says "I can't hear you, you're breaking up" in the middle of a cell-phone conversation. This usage appears in research on online communities and micro-blogging.

The Moscow linguistic circle was a group of social scientists in semiotics, literary theory, and linguistics active in Moscow from 1915 to ca. 1924. Its members included Roman Jakobson (its founder), Filipp Fortunatov, Grigoriy Vinokur, Boris Tomashevsky, and Petr Bogatyrev. The group was a counterpart to the St. Petersburg linguistic group OPOJAZ; between them, these two groups (together with the later Prague linguistic circle) were responsible for the development of Russian formalist literary semiotics and linguistics.

The encoding/decoding model of communication emerged in rough and general form in 1948 in Claude E. Shannon's "A Mathematical Theory of Communication," where it was part of a technical schema for designating the technological encoding of signals. Gradually, it was adapted by communications scholars, most notably Wilbur Schramm, in the 1950s, primarily to explain how mass communications could be effectively transmitted to a public, its meanings intact by the audience (i.e., decoders). As the jargon of Shannon's information theory moved into semiotics, notably through the work of thinkers Roman Jakobson, Roland Barthes, and Umberto Eco, who in the course of the 1960s began to put more emphasis on the social and political aspects of encoding. It became much more widely known, and popularised, when adapted by cultural studies scholar Stuart Hall in 1973, for a conference addressing mass communications scholars. In a Marxist twist on this model, Stuart Hall's study, titled 'Encoding and Decoding in the Television Discourse', offered a theoretical approach to how media messages are produced, disseminated, and interpreted. Hall proposed that audience members can play an active role in decoding messages as they rely on their own social contexts and capability of changing messages through collective action.

Thus, encoding/decoding is the translation needed for a message to be easily understood. When you decode a message, you extract the meaning of that message in ways to simplify it. Decoding has both verbal and non-verbal forms of communication: Decoding behavior without using words, such as displays of non-verbal communication. There are many examples, including observing body language and its associated emotions, e.g. monitoring signs when someone is upset, angry, or stressed where they use excessive hand/arm movements, crying, and even silence. Moreover, there are times when an individual can send a message across to someone, the message can be interpreted differently from person to person. Decoding is all about understanding others, based on the information given throughout the message being received. Whether there is a large audience or exchanging a message to one person, decoding is the process of obtaining, absorbing and sometimes utilizing information that was given throughout a verbal or non-verbal message.