ABSTRACT

Can we regard the nervous apparatus of the cerebral cortex, which constitutes the highest stage of the directive system of the organism, as undifferentiated to such a degree that a lesion, wherever it occurred, would only diminish its functional capacity as a whole; and, in proportion to the extent of the injury, would involve a constant succession of disturbances disappearing in a precisely inverse order with the progress of recovery? Or should we rather expect to find in the various regions of the cortex individualized centres grouped in departments with well-defined functions, and endeavour to localize memory, intelligence, attention, morality, aesthetics, loyalty, musical talent, or aptitude for mathematics?