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BEHAVIORAL SCIENCES - Universitatea de Medicină şi Farmacie

BEHAVIORAL SCIENCES - Universitatea de Medicină şi Farmacie

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<strong>de</strong>veloped his i<strong>de</strong>as in a 1963 book with Warren Weaver titled The<br />

Mathematical Theory of Communication.<br />

Information<br />

Source Transmiter Receiver Destination<br />

Signal Recevied<br />

Message Signal Message<br />

Noise<br />

Source<br />

Shannon's diagram of a general communication system.<br />

Here are laid out the basic elements of communication as they were<br />

<strong>de</strong>veloped by Shannon and others:<br />

1. Source, emissor, sen<strong>de</strong>r (by whom the information is conveyed?).<br />

When we speak, write, smile, and make gesture we are in the posture of<br />

sen<strong>de</strong>r. Information source produces a message or sequence of messages to be<br />

communicated to the receiving terminal.<br />

2. Message (what types of things and in what form are<br />

communicated?). Message is information which is sent from a source to a<br />

receiver. It may be any thought expressed in a language, prepared in a form<br />

suitable for transmission by any means of communication. In communication<br />

between humans, messages can be verbal or nonverbal:<br />

A verbal message is an exchange of information using words.<br />

Examples inclu<strong>de</strong> face-to-face communication, telephone calls, voicemails,<br />

etc. A nonverbal message is communicated through actions or behaviors<br />

rather than words. Examples inclu<strong>de</strong> the use of body language.<br />

3. Encoding is a process of message production. To codify means to<br />

translate our i<strong>de</strong>as, attitu<strong>de</strong>s, emotions into language. Language may be<br />

spoken and written (i.e. sounds and words). Also there are paralanguage (for<br />

instance tone of voice, quality of voice, rhythm and intonation), and body<br />

language (for instance posture and gesture).<br />

4. Transmitter operates on the message in some way to produce<br />

a signal suitable for transmission over the channel. In telephony this<br />

operation consists merely of changing sound pressure into a proportional<br />

76

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