[The Ganser syndrome and its ups and downs]

Ganser, in 1897, described a syndrome that the main symptoms were: Impaired consciousness, distorted communication (Maladjusted answers, looking like dementia nonsense). This syndrome was first included to hysteria. Gradually, the most striking aspect, approximate answers, has been stretch as regards to his pathogeny, to other concepts like post-traumatic disease, depression and especially schizophrenia. In this way, the Ganser's syndrome now cover a large scale of troubles related to perturbation of communication and with non psychopathologic relation to the primitive syndrome.