5 2 ▁in ▁A uff ay ▁– ▁ 2 2 ▁April ▁ 1 9 0 7 ) ▁was ▁a ▁French ▁phys ician . ▁ ▁He ▁initially ▁studied ▁medicine ▁in ▁Rou en , ▁where ▁he ▁subsequently ▁served ▁at ▁the ▁H ôtel - D ieu ▁under ▁sur geon ▁Ach ille ▁F la ub ert ▁( 1 8 1 3 - 1 8 8 2 ), ▁an ▁older ▁brother ▁of ▁writer ▁Gust ave ▁F la ub ert ▁( 1 8 2 1 - 1 8 8 0 ). ▁After wards , ▁he ▁re located ▁to ▁Paris , ▁where ▁in ▁ 1 8 7 7 ▁he ▁gained ▁his ▁intern ship . ▁In ▁ 1 8 8 1 ▁he ▁began ▁work ▁as ▁an ▁assistant ▁to ▁Jean - Martin ▁Char cot ▁( 1 8 2 5 - 1 8 9 3 ), ▁who ▁was ▁a ▁prof ound ▁influence ▁to ▁F éré ' s ▁career . ▁In ▁ 1 8 8 7 , ▁he ▁was ▁appointed ▁chief ▁medical ▁officer ▁at ▁the ▁H osp ice ▁B ic être , ▁remaining ▁there ▁for ▁the ▁rest ▁of ▁his ▁career . ▁ ▁F éré ' s ▁wide - r anging ▁research ▁covered ▁subjects ▁such ▁as ▁medicine , ▁psych ology , ▁cr imin ology , ▁sexual ity , ▁hyp nos is , ▁Dar win ism , ▁her ed ity , ▁et ▁al . ▁The ▁following ▁are ▁a ▁few ▁of ▁his ▁principal ▁written ▁works : ▁ ▁Le ▁Magn ét isme ▁animal ▁( with ▁Alfred ▁B inet ), ▁ 1 8 8 7 ▁- ▁Animal ▁magnet ism