Ecological Model of the Communication Process

Existing models of the communication process don't provide a reasonable basis for understanding such effects. Indeed, there are many things that we routinely teach undergraduates in introductory communication courses that are missing from, or outright inconsistent with, these models. Consider that:

*we now routinely teach students that "receivers" of messages really "consume" messages. People usually have a rich menu of potential messages to choose from and they select the messages they want to hear in much the same way that diners select entrees from a restaurant menu. We teach students that most "noise" is generated within the listener, that we engage messages through "selective attention", that one of the most important things we can do to improve our communication is to learn how to listen, that mass media audiences have choices, and that we need to be "literate" in our media choices, even in (and perhaps especially in) our choice of television messages. Yet all of these models suggest an "injection model" in which message reception is automatic.

*we now routinely teach students that "receivers" of messages really "consume" messages. People usually have a rich menu of potential messages to choose from and they select the messages they want to hear in much the same way that diners select entrees from a restaurant menu. We teach students that most "noise" is generated within the listener, that we engage messages through "selective attention", that one of the most important things we can do to improve our communication is to learn how to listen, that mass media audiences have choices, and that we need to be "literate" in our media choices, even in (and perhaps especially in) our choice of television messages. Yet all of these models suggest an "injection model" in which message reception is automatic.

* we spend large portions of our introductory courses teaching students about the importance of perception, attribution, and relationships to our interpretation of messages; of the importance of communication to the perceptions that others have of us, the perceptions we have of ourselves, and the creation and maintenence of the relationships we have with others. These models say nothing about the role of perception and relationshp to the way we interpret messages or our willingness to consume messages from different people.

*when we use these models in teaching courses in both interpersonal and mass communication; in teaching students about very different kinds of media. With the exception of the Shannon model, we tend to use these models selectively in describing those media, and without any strong indication of where the medium begins or ends; without any indication of how media interrelate with languages, messages, or the people who create and consume messages.without addressing the ways in which they are . while these media describe, in a generalized way, media,

The ecological model of communication, shown in Figure 6, attempts to provide a platform on which these issues can be explored. It asserts that communication occurs in the intersection of four fundamental constructs: communication between people (creators and consumers) is mediated by messages which are created using language within media; consumed from media and interpreted using language.This model is, in many ways, a more detailed elaboration of Lasswell's (1948) classic outline of the study of communication: "Who ... says what ... in which channel ... to whom ... with what effect". In the ecological model , the "who" are the creators of messages, the "says what" are the messages, the "in which channel" is elaborated into languages (which are the content of channels) and media (which channels are a component of), the "to whom" are the consumers of messages, and the effects are found in various relationships between the primitives, including relationships, perspectives, attributions, interpretations, and the continuing evolution of languages and media.

A number of relationships are described in this model:

*Messages are created and consumed using language.

* Language occurs within the context of media

*Messages are constructed and consumed within the context of media.

* The roles of consumer and creator are reflexive. People become creators when they reply or supply feedback to other people. Creators become consumers when they make use of feedback to adapt their messages to message consumers. People learn how to create messages through the act of consuming other peoples messages.

*The roles of consumer and creator are introspective. Creators of messages create messages within the context of their perspectives of and relationships with anticipated consumers of messages. Creators optimize their messages to their target audiences. Consumers of messages interpret those messages within the context of their perspectives of, and relationships with, creators of messages. Consumers make attributions of meaning based on their opinion of the message creator. People form these perspectives and relationships as a function of their communication.

*The messages creators of messages construct are necessarily imperfect representations of the meaning they imagine. Messages are created within the expressive limitations of the medium selected and the meaning representation space provided by the language used. The message created is almost always a partial and imperfect representation of what the creator would like to say.

*A consumers interpretation of a messages necessarily attributes meaning imperfectly. Consumers intepret messages within the limits of the languages used and the media those languages are used in. A consumers interpretation of a message may be very different than what the creator of a message imagined.

*People learn language by through the experience of encountering language being used within media. The languages they learn will almost always be the languages when communicating with people who already know and use those languages. That communication always occurs within a medium that enables those languages.

*People learn media by using media. The media they learn will necessarilly be the media used by the people they communicate with.

*People invent and evolve languages. While some behavior expressions (a baby's cry) occur naturally and some aspects of language structure may mirror the ways in which the brain structures ideas, language does not occur naturally. People invent new language when there is no language that they can be socialized into. People evolve language when they need to communicate ideas that existing language is not sufficient to.

*People invent and evolve media While some of the modalities and channels associated with communication are naturally occurring, the media we use to communicate are not.