Medicine: Three Pioneers of the Brain

Mapping the mind wins Nobels for researchers in the U.S.

The human brain is a whole universe, and of all the questions that it can conceive, none is more mysterious or intriguing than precisely how it works. For tracing some of the elusive answers through the intricate corridors of consciousness and perception, three scientists, two American and one Swedish, last week were awarded Nobel Prizes in Medicine. For his pioneering research into the differing functions of the brain's two cerebral hemispheres, Roger Sperry, 68, of the California Institute of Technology, won half of the...

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