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Recent brain research has revealed a remarkable fact-man has two brains instead of one. The two hemispheres of a person's cerebral cortex are specialized for different modes of thought processing. Differences in the functioning of the two hemispheres has been known for many years. When a person sustained a head injury on the left side, he lost speech capability: when the injury was to the right side, speech was not affected. The nature of the capabi lity of the right hemisphere, however, was not understood.
Grayson H. Wheatley (Tue,) studied this question.