- Elmer Ambrose,1860–1930, U.S. inventor and manufacturer.
- Roger Wolcott,1913–94, U.S. neurobiologist: Nobel prize 1981.
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Examples from the Web for sperry
Look here, Mr. Sperry, how much is this bill with the whiskers?
"That's quite a stack of chips you're carrying," Sperry observed.
And with a quiet suggestion she set young Sperry on his trail.Little Miss Grouch
Samuel Hopkins Adams
There is also a comfortable chalet close to the Sperry Glacier.The Book of the National Parks
Robert Sterling Yard
A friend named Sperry, who lived in the neighborhood, brought them food.Historic Events of Colonial Days
Rupert S. Holland
Sperry(spĕr′ē)Roger Wolcott 1913-1994
- American neurobiologist. He shared a 1981 Nobel Prize for studies of the organization and functioning of the brain.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- American neurobiologist who pioneered the behavioral investigation of split-brain animals and humans, establishing that each hemisphere of the brain controls specific higher functions. He shared with American neurophysiologist David H. Hubel and Swedish neurophysiologist Torsten N. Wiesel the 1981 Nobel Prize for physiology or medicine.
Biography: Ever wondered what it's like to see the world upside-down and backwards? Some salamanders found out in the 1930s. They were experimental subjects in the lab of Roger Sperry, who had made his first big splash on the scientific community by showing that the functions of specific motor nerves in mammals were hardwired and unchangeable. Salamanders, unlike mammals, can regenerate nerves, so Sperry cut through their optic nerves and rotated their eyeballs 180 degrees. When the nerve grew back, it was somehow guided back to its original termination sites, resulting in the salamanders' visual field being radically altered. While this work was pathbreaking, Sperry's most famous experiments involved work with the brain in which the corpus callosum, the thick network of nerves that connects the left and right cerebral hemispheres, had been severed (resulting in a split brain). Sperry showed first that the hemispheres of split-brain cats learned tasks separately, and with equal facility, and were essentially independent cognitive organs. He then turned to humans, using patients whose corpora callosa had been severed as treatment for epilepsy (widely done at the time). Using these patients Sperry was able to demonstrate that the two hemispheres are functionally distinct: the left hemisphere is dominant in verbal and analytical tasks, while the right hemisphere is dominant in music and spatial tasks. The results of Sperry's and his colleagues' research led to the construction of a map of the brain and also to his sharing the Nobel Prize for physiology or medicine in 1981.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.