ABSTRACT
This chapter covers the area of clinical and legal problems that arose at the intersection of the expertise for railway accidents and the clinic of the neuroses. In this framework, the notion of trauma travelled different paths that gave some psychological traits to the prior conceptions built upon anatomical and physiological matrices. Finally, a new problem arose, which remains valid until today: that of the complex relationship between the event and its representation, between the objective conditions and the subjective particularities of an experience.
