JAMA. 1907;XLVIII(25):2107-2108. doi:10.1001/jama.1907.25220510025001g.
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Faradization of the cortex is a scientific procedure unaccompanied by the slightest danger to the individual operated on. Valuable data concerning cerebral localizations have been obtained by various observers from faradization. The former results obtained by Hitzig, Ferrier, Horsley, Beevor and others can not at present be considered as absolutely accurate in view of the bipolar method which, as it was pointed out by Grünbaum and Sherrington, led to errors in localizations: diffusion of the electrical current caused a simultaneous stimulation of centers other than those experimented on. With the advent of the unipolar method advised by Grünbaum and Sherrington this difficulty is obviated and we are now able to obtain more accurate cerebral localizations.

The question of the exact delimitation of the motor area is, for obvious reasons, one of unusual interest and importance.

Pathologic material is not wanting for the demonstration of the approximate existence of the motor


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