Every day, we exchange thousands of messages-through words, gestures, emails, and even silence. Yet how often do we stop to consider what actually happens when one person tries to share an idea with another? Understanding the communication process isn’t just an academic exercise. It’s the foundation for building stronger relationships, resolving conflicts in healthcare settings, and ensuring that critical information reaches those who need it most. Whether you’re a counselor working with HIV-positive clients or simply trying to connect with someone from a different background, knowing how communication works can transform your effectiveness.
Table of Contents
The building blocks of communication
Communication doesn’t happen by magic. It requires specific elements working together in a coordinated way. Two influential scholars, Harold Lasswell and David Berlo, gave us frameworks that break down this complex process into understandable parts.
Lasswell’s five questions
In 1948, political scientist Harold Lasswell introduced a straightforward way to analyze any communication event by asking five essential questions: Who says what, in which channel, to whom, and with what effect? These questions point to the core components of communication.
The sender is where everything begins. This is the person or organization creating and transmitting the message. In HIV counseling, the sender might be a healthcare worker explaining treatment options. The sender’s credibility, communication skills, and knowledge all influence how the message will be received.
The message is the actual content being communicated. It could be information, emotions, instructions, or ideas. In Lasswell’s framework, analyzing the message means examining not just what is said, but also the underlying purpose and any hidden meanings.
The channel refers to the medium through which the message travels. Face-to-face conversation, phone calls, text messages, posters, and radio broadcasts are all different channels. Each channel has strengths and limitations. A sensitive HIV diagnosis, for instance, requires the privacy and personal connection of a face-to-face channel rather than a text message.
The receiver is the person or audience who receives and interprets the message. The receiver’s background, attitudes, and current emotional state all shape how they understand what’s being communicated.
The effect is the outcome or impact of the communication. Did the message persuade, inform, or confuse? Did it lead to the intended action? In public health communication, measuring effect is crucial for determining whether campaigns are actually changing behaviors.
Berlo’s SMCR model adds depth
Building on earlier work, David Berlo developed the SMCR model in 1960, which stands for Source, Message, Channel, and Receiver. Berlo’s innovation was recognizing that multiple factors influence each component.
For the source and receiver, Berlo identified five key factors: communication skills, attitudes, knowledge level, social system, and culture. A health educator with excellent communication skills can translate complex medical information into terms a patient understands. But if that educator holds judgmental attitudes toward certain behaviors, those attitudes will leak into the message, potentially damaging trust.
Knowledge matters enormously. A counselor explaining antiretroviral therapy needs deep knowledge of HIV treatment. But the receiver also needs sufficient health literacy to understand the explanation. When there’s a big gap in knowledge between sender and receiver, communication breaks down.
Berlo also recognized that the message itself has multiple elements: content, treatment, structure, and code. The same content can be delivered with empathy or coldness, organized clearly or confusingly, using medical jargon or plain language. All of these choices shape whether communication succeeds.
Why feedback transforms communication
One major limitation of both Lasswell’s and Berlo’s models is that they treat communication as a one-way street. Information flows from sender to receiver, and that’s the end of it. But real communication rarely works this way.
Feedback is what makes communication a two-way interaction. When receivers respond to messages, they confirm understanding, ask for clarification, or signal confusion. This response loop allows senders to adjust their approach.
Think about a counselor explaining HIV test results to a client. If the counselor simply delivers information without pausing to check for understanding, they have no idea whether the client comprehended the message. But if the counselor asks questions like “What questions do you have?” or watches for nonverbal cues like confusion or distress, they can adapt their explanation in real time.
Feedback ensures message clarity. It acts as a quality control mechanism. When both parties provide feedback in two-way communication, they can confirm that the message was heard and interpreted accurately. This prevents the dangerous assumption that communication has occurred just because someone spoke.
Feedback also builds trust and rapport. When people feel heard, when their responses are valued and incorporated, they become more engaged in the conversation. Research shows that employees who receive regular feedback are more motivated and productive. The same principle applies in any helping relationship, including HIV counseling.
In organizational settings, feedback allows leaders to gauge whether their communications are landing as intended. Without it, communication becomes mere information transmission rather than genuine dialogue.
The power of shared experience
Even with all the right components and good feedback, communication can still fail when people come from vastly different backgrounds. This is where Wilbur Schramm’s concept of “field of experience” becomes crucial.
What Schramm’s model reveals
Wilbur Schramm, writing in 1954, introduced the idea that communication succeeds only when the sender’s and receiver’s fields of experience overlap. Your field of experience includes your education, culture, language, beliefs, attitudes, and all the experiences that have shaped how you see the world.
Imagine two circles representing the sender’s and receiver’s fields of experience. Communication happens in the area where these circles overlap. The larger the overlap, the easier communication becomes. When there’s little or no overlap, even simple messages can be misunderstood.
A physics professor teaching psychology students would struggle if they used complex mathematical formulas without building common ground first. The professor’s field of experience is steeped in advanced mathematics, while the students’ backgrounds lie in human behavior and cognition. Effective teaching requires the professor to find the overlap-perhaps using everyday examples or metaphors that students can relate to.
In HIV counseling and communication, field of experience matters profoundly. A counselor from an urban, educated background may use language and concepts that don’t resonate with a rural client with limited formal education. Cultural beliefs about illness, treatment, and sexuality all shape how health messages are received.
When cultures collide: lessons from “The Gods Must Be Crazy”
The 1980 film “The Gods Must Be Crazy” offers a vivid illustration of what happens when fields of experience barely overlap. The movie follows Xi, a member of the San tribe in the Kalahari Desert, whose traditional way of life collides with modern Western culture when a Coke bottle falls from an airplane.
The film serves as a case study in intercultural communication challenges. The San people have no concept of ownership, money, or guilt as understood in Western legal systems. When Xi is arrested for killing a goat-which he saw as hunting for food-he stands bewildered in court. There’s no word for “guilty” in his language. His field of experience has no overlap with the legal system trying to judge him.
The communication breakdowns are sometimes comical, sometimes troubling. When Xi tries to communicate through clicking sounds and gestures natural to his culture, Western characters cannot understand him. When he encounters Kate, a woman from the city, his cultural standards of beauty are completely different, leading to mutual misunderstanding.
These scenes illustrate that communication requires more than just a shared language. It requires shared cultural references, similar value systems, and common understandings of basic concepts. Without this overlap, even simple messages can be completely misinterpreted.
For those working in HIV communication and counseling, these lessons are directly applicable. Clients come from diverse cultural backgrounds with different beliefs about disease, sexuality, family, and treatment. A counselor who assumes their own cultural framework is universal will struggle to communicate effectively. Success requires actively building common ground, learning about clients’ worldviews, and adapting messages to fit within their field of experience.
Putting it all together
Understanding the communication process means recognizing that it’s far more complex than simply speaking and listening. It involves carefully considering who is sending what message, through which channel, to whom, with what intended effect. It requires creating feedback loops that allow for clarification and adjustment. And it demands awareness of the fields of experience that both enable and constrain how messages are understood.
In HIV counseling and communication, these principles aren’t abstract theory. They’re practical tools for saving lives and improving health outcomes. When counselors understand that their clients’ fields of experience may be vastly different from their own, they can adapt their approach. When they create space for feedback rather than simply delivering information, they ensure understanding. When they carefully choose channels appropriate to sensitive topics, they build trust.
The communication models developed by Lasswell, Berlo, and Schramm give us frameworks for analyzing and improving how we connect with others. They remind us that effective communication isn’t accidental. It’s the result of understanding the process, respecting differences, and continuously adjusting our approach based on feedback.
What do you think? How might your own field of experience create barriers when communicating with people from different backgrounds? In what areas of your work or life could creating better feedback loops improve communication effectiveness?
References
- https://en.wikipedia.org/wiki/Lasswell's_model_of_communication
- https://www.toolshero.com/communication-methods/lasswell-communication-model/
- https://en.wikipedia.org/wiki/Source–message–channel–receiver_model_of_communication
- https://mirro.io/blog/importance-of-feedback/
- https://en.wikipedia.org/wiki/Two-way_communication
- https://www.ennova.com/en/resources/blog/ex/feedback-is-the-key-to-success
- https://en.wikipedia.org/wiki/Schramm's_model_of_communication
- https://eric.ed.gov/?id=ED389007
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