جان مارتن شاركو
Early in his career, he was an assistant to famed neurologist Jean-Martin Charcot (1825–1893). Séglas' ideas and theories influenced a number of psychiatrists, including Henri Ey (1900–1977) and Jacques Lacan (1901–1981). In 1908 he became president of the "Societé Medico-Psychologique".