[Proposition of a new concept: "sequence of communication"]

What we suggest as a concept is "The sequence of communication" which is accessible to experimenting excluding the concept of "black box". The sequence of communication point out the print of sensations their coding, and a scheme of action as well. This concept enables us to treat information in its unicity taking into account its reception, its analysis and its emission all together. It's a way to avoid the differentiation, or even the clash between "what is felt", "what is said" and "what is acted". From the semiological point of view this approach allows us to stress an analogy between symptoms, which until now have been listed in different pathologies. From the methodological point of view, some hypothesis of work concerning anguish are drawn. On the therapeutic point of view, taking into account the "affects" in a logical context, enables the patient to master his own behaviour.