The information and communication sciences that are nourished by interdisciplinary exchange face many challenges. One of the most difficult to account for is the current advances of the cognitive and medical sciences on brain function. What processes allow us to learn, behave and communicate with others? Advances in neuroscience condition "those in medicine, neurology and psychiatry, those with knowledge of normal and pathological development of the nervous system, those in the humanities, particularly education" [...] and those who "highlight the brain's extraordinary plasticity and capacity for regeneration, its underlying mechanisms for communication between neurons, for memory, for affective states, for sleep, for pain and for consciousness" (KORN, 2003). As such, it is possible to incorporate some of their contributions into my research on the relationship between signes-traces and communication, especially for what concerns me here between corporeal signes-traces and communication in the context of social and professional insertion.