Communication theory

Human communication is understood in various ways by those who identify with the field. This diversity is the result of communication being a relatively young field of study, composed of a very broad constituency of disciplines. It includes work taken from scholars of Rhetoric, Journalism, Sociology, Psychology, Anthropology, and Semiotics, among others. Cognate areas include telecommunications, which investigates communicative processes within and among non-humans such as bacteria, animals, fungi and plants, and information theory, which provides a mathematical model for measuring communication within and among systems.
Generally, human communication is concerned with the making of meaning and the exchange of understanding. One model of communication considers it from the perspective of transmitting information from one person to another. In fact, many scholars of communication take this as a working definition, and use Lass-well's maxim, "who says what to whom in which channel with what effect," as a means of circumscribing the field of communication theory. Among those who subscribe to the transmission model are those who identify themselves with the communication sciences, and finds its roots in the studies of propaganda and mass media of the early 20th century.

A simple communication model with a sender transferring a message containing information to a receiver.
Constructionist Models
There is an additional working definition of communication to consider that authors like Richard A. Lanham (2003) and as far back as Erving Goffman (1959) have highlighted. This is a progression from Lasswell’s attempt to define human communication through to this century and revolutionized into the constructionist model. Constructionists believe that the process of communication is in itself the only messages that exist. The packaging can not be separated from the social and historical context from which it arose, therefore the substance to look at in communication theory is style for Richard Lanham and the performance of self for Erving Goffman.
Lanham chose to view communication as the rival to the over encompassing use of CBS model (which pursued to further the transmission model). CBS model argues that clarity, brevity, and sincerity are the only purpose to prose discourse, therefore communication. Lanham wrote, “If words matter too, if the whole range of human motive is seen as animating prose discourse, then rhetoric analysis leads us to the essential questions about prose style” (Lanham 10). This is saying that rhetoric and style are fundamentally important; they are not errors to what we actually intend to transmit. The process which we construct and deconstruct meaning deserves analysis.
Erving Goffman sees the performance of self as the most important frame to understand communication. Goffman wrote, “What does seem to be required of the individual is that he learn enough pieces of expression to be able to ‘fill in’ and manage, more or less, any part that he is likely to be given” (Goffman 73) Goffman is highlighting the significance of expression. The truth in both cases is the articulation of the message and the package as one. The construction of the message from social and historical context is the seed as is the pre-existing message is for the transmission model. Therefore any look into communication theory should include the possibilities drafted by such great scholars as Richard A. Lanham and Erving Goffman that style and performance is the whole process.
Communication stands so deeply rooted in human behaviors and the structures of society that scholars have difficulty thinking of it while excluding social or behavioral events. Because communication theory remains a relatively young field of inquiry and integrates itself with other disciplines such as philosophy, psychology, and sociology, one probably cannot yet expect a consensus conceptualization of communication across disciplines.
Communication Model Terms as provided by Rothwell (11-15):
• Noise; interference with effective transmission and reception of a message.
o For example;
 physical noise or external noise which are environmental distractions such as poorly heated rooms, startling sounds, appearances of things, music playing some where else, and someone talking really loudly near you.
 psychological noise are biological influences that distract you from communicating competently such as sweaty palms, pounding heart, butterfly in the stomach, induced by speech anxiety, or feeling sick, exhausted at work, the ringing noise in your ear, being really hungry, and if you have a runny noise or a cough.
 physiological noise are the preconception bias and assumptions such as thinking someone who speaks like a valley girl is dumb, or someone from a foreign country can’t speak English well so you speak loudly and slowly to them.
 semantic noise are word choices that are confusing and distracting such as using the word tri-syllabic instead of three syllables.
• Sender; the initiator and encoder of a message
• Receiver; the one that receives the message (the listener) and the decoder of a message
• Decode; translates the senders spoken idea/message into something the receiver understands by using their knowledge of language from personal experience.
• Encode; puts the idea into spoken language while putting their own meaning into the word/message.
• Channel; the medium through which the message travels such as through oral communication (radio, television, phone, in person) or written communication (letters, email, text messages)