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PSYCHOLOGY.
169 cases carefully studied by Exner. The parts shaded are regions where lesions produced no motor disturbance.
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Fig. 8.—Right Hemisphere of Human Brain. Lateral Surface.
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Fig. 9.—Right Hemisphere of Human Brain. Mesial Surface.
Those left white were, on the contrary, never injured without motor disturbances of some sort. Where the injury to the cortical substance is profound in man, the paralysis is permanent and is succeeded by muscular rigidity in the paralyzed parts, just as it may be in the monkey.
