The concept of adolescent crisis is not generally found in the vocabulary of psychoanalysis. It was not used by Freud and was not created by any psychoanalyst. In France the concept gained currency following the success of Maurice Debesse's La crise d'originalité juvenile (The crisis of juvenile originality; 1941), which helped spread and popularize the concept. Subsequently, authors interested in adolescence, including psychoanalysts, picked up the term for their own uses, supporting it or criticizing it. The initial ambiguity and lack of precision associated with the term probably contributed to its success, but also turned it into a grab-bag of ideas and the source of considerable misunderstanding. It has been used to refer to the culmination of the developmental process at the end of childhood and the beginning of adulthood, as well as to the behavioral manifestations and disturbances that so often occur at this age.