In this paper, we will demonstrate that in order to give an efficient clinic explanation for hysteria, Freud progresses from neurology to psychology. The key that will allow him this transposition is the concept of representation in aphasia, because representation in this text is a psychological metaphor substitutive of complex physiological processes, i.e., the psychic representational phenomenon appears as a function of the neurological processes which constitute it. (LLBA, Accession Number 20306665; (c) CSA [2008]. All rights reserved.)