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August 25, 1900


Author Affiliations

Professor of Diseases of the Nervous System, Post-Graduate and Medical School; Attending Neurologist, Michael Reese Hospital; Fellow, Chicago Academy of Medicine, etc. CHICAGO.

JAMA. 1900;XXXV(8):489-494. doi:10.1001/jama.1900.24620340025001i

Fifty years after Gall had published his doctrine of cerebral localization, the scientific medical world still believed with Flourens that "not only did all perceptions, all volitions, all intellectual faculties, reside exclusively in the brain, but that all faculties occupied the same place in it. That as soon as one of them disappeared from a lesion of any one point of the brain proper, they all disappeared; that as soon as one returned after the healing of that lesion, all returned. That the ability to perceive and to will, therefore, constituted essentially but one faculty; and that that faculty resided essentially in a single organ." Again fifty years had elapsed and a chart of the surface of a brain could be fitly compared to "a political map of Germany at the end of the seventeenth century." So greatly has our knowledge of cerebral localization advanced in those years that it