Traditionally, under the influence of the Condillac thesis, we model communication between an individual and his environment within strict sensorial boundaries: olfactory communication, tactile communication, visual communication, and so forth. However, recent anatomophysiological and ethnographic data suggest another hypothesis, that of an intersensorial processing of stimuli. In the first part of my text, I support this hypothesis by recalling the physiological mechanisms underlying the intersensorial experience. In the second part, I illustrate the hypothesis with experimental and ethnographic data. To conclude, I stress their anthropological implications in the field of social cognition.