Message Processing: The Science of Creating Understanding

Message Processing: The Science of Creating Understanding by Jessica Gasiorek and R. Kelly Aune investigates how people create mutual understanding. The attached six-chapter edition moves from foundational concepts to media and communicative codes, then compares traditional models with an inferential account. The key shift is from picturing communication as transferring fixed meanings to examining how people use behavior, context, and assumptions to interpret intentions. This guide follows the PDF available on this page; the current online revision combines material differently and should not be confused with that edition’s chapter numbering.

Chapter-by-chapter summaries

1. Introduction to Message Processing

The authors define their subject around the physical and psychological activities involved in creating mutual understanding. This includes both producing and interpreting messages, across interpersonal and mediated settings. It differs from asking only whether a message persuades or changes behavior. Use a short exchange to distinguish understanding the intended meaning from agreeing with it. The chapter’s historical discussion explains why communication research has often emphasized influence. Making understanding itself the object of inquiry changes what a theory needs to explain and what would count as successful communication.

2. Foundational Concepts

The chapter makes terms explicit rather than assuming that communication, meaning, and related ideas are self-explanatory. Mental states and their relation to observable behavior provide the basis for analyzing understanding between people. The authors’ use of memes concerns mental content within this conceptual account, not simply humorous online images. Distinguish a thought, the behavior used to express it, and another person’s interpretation. Those are related elements but not identical objects. This separation makes it possible to explain misunderstanding without assuming that a message contains a fully self-sufficient meaning.

3. Media

A medium provides functions through which communicative behavior becomes available to another person. The discussion compares media through affordances instead of identifying media only with broadcasting institutions. Paper, a digital system, and an ordinary physical surface may share a communicative function despite their differences. Analyze the same message delivered in conversation and in writing: identify what can persist, what feedback is available, and what contextual information changes. Media influence the evidence and opportunities available to communicators, but they do not remove the underlying problem of interpreting another person’s intention.

4. Communicative Codes

Codes connect structured stimuli with meanings or mental content through shared patterns. The chapter considers how codes arise and the dimensions along which they differ, helping explain why some are useful for particular tasks. Shared conventions reduce uncertainty, but knowing a code does not settle every interpretation in context. Invent a simple signal system for a limited classroom task, then identify a situation in which it becomes ambiguous. This demonstrates both the power of convention and the questions that a code-based explanation must still address.

5. Traditional Models of Human Communication

Linear, interactive, and transactional models offer different representations of communication. The authors focus on the broader code-model assumption that encoding and decoding explain how understanding is achieved. They examine its limitations through ambiguity, improvised signals, and exchanges without an established shared code. Compare a model’s components with a concrete interaction and identify what the representation leaves unexplained. A model need not reproduce every detail of reality, but it must account for the phenomenon it claims to explain. The critique prepares for an alternative rather than dismissing the usefulness of every convention.

6. The Inferential Model of Human Communication

The concluding chapter treats communicative behavior as evidence from which people infer intentions in context. Speakers and listeners rely on assumptions about each other, the situation, and the relevance of available signals. Understanding is therefore an interpretive achievement rather than the mechanical recovery of a packaged thought. Analyze an indirect request or an improvised gesture, listing what the recipient must infer. Compare the account with the code model and explain how shared language can still help. The chapter integrates earlier concepts while giving context and intention a more explicit explanatory role.

Study instructions

1. Maintain a glossary with the authors’ definitions and one example of your own. Distinguish the book’s technical uses from everyday meanings.
2. Analyze a short exchange at three levels: observable behavior, available context, and inferred intention. Mark which parts are observed and which are inferred.
3. Compare two media using the same communication task and identify how their affordances affect evidence, feedback, and ambiguity.
4. Draw a traditional model and an inferential account of one interaction. Explain what each can and cannot account for.
5. Use the attached PDF’s six-chapter sequence when matching these notes to the source. Record the edition when citing passages.

Questions for reflection

• Can people understand one another without agreeing, and why does that distinction matter?
• Which features of an exchange require more than a shared vocabulary to explain?
• How do media affordances influence the evidence available for interpretation?
• What would make an inference about another person’s intention reasonable but still mistaken?

Sources and coverage

This original study guide follows all main chapters of the source edition linked below. Summaries explain the central concepts and their connections; practice tasks and reflection questions are editorial study aids. Consult the complete text for worked examples, figures, exercises, and references. Chapter numbering follows the attached six-chapter PDF; the revised web edition has a different five-chapter arrangement. Read the source edition.