Word: right-handedness
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"I have taken all knowledge to be my province," wrote Francis Bacon. And in 1592, when most of today's complex sciences had not even been conceived, he was neither idly boasting nor wildly exaggerating. But among the many things that Bacon did not know was that despite his...
...normally developing right-handed child, the left hemisphere becomes dominant. As he learns to understand words and to talk, it contains his most specialized language center. This is nearly always true even in a left-handed child. And in the 85% of people who develop right-handedness, the left hemisphere controls the most essentially human of physical movements-writing and using tools...
...A right-handed man with a left-hemisphere stroke is so frustrated by physical helplessness and speechlessness that he has a powerful motive to do the repetitive exercises that will help him to recover. The older the patient, usually, the less powerful this motive. How much of his improvement over...
Among the oddest of many unexplained effects of strokes is that a patient's perception of the vertical is tilted. But whether it is tilted to right or left depends on which side of his brain has been injured. With paralysis on the left side, a right-handed man...
A stroke on the nondominant side of the brain may produce effects even more baffling and variegated than damage on the brain's dominant side. If, as is usually the case, it happens on the right side of the brain in a right-handed patient, his language skills are...