If one discusses the rise of cognitive science, one should bear in mind that cognitive science is not a discipline like those separated from the traditional fields of philosophy, the arts or medicine: psychology, linguistics, biology, anthropology, etc., rather it was created by an act of reassembling separated disciplines. The reassembling of separated classes may be done in different ways and have different motives. In fact, since the separation of disciplines (which mainly occurred in the 19^th century (psychology was only separated from philosophy at the end of the last century), different initiatives have been taken to form more coherent and larger fields of scientific research.