[André Léri and the evolution of the concept of the commotion and of emotion during the Great War].

Under wing of Babinski and Pierre Marie at "La Salpétrière Hospital", André Léri (1875-1930) became a member of the Académie de Neurologie since 1904, then, Associated Professor in 1910. Between the 14-18 War, he was entrusted to run the head of medical military Districts and jumped at the chance to go deeply into war nevrosis. He sharpened exognosis diagnosis to set apart a lot of mental disorders which were before confused under the name of "brain concussion"; he listed hysteria, neurasthenia, psychosis, nevrosis and psycho-nevrosis, emotional syndromes, and clearly defined malingering.