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Roger Wolcott Sperry (August 20, 1913 – April 17, 1994) was an American neuropsychologist, neurobiologist, cognitive neuroscientist, and Nobel laureate who, together with David Hunter Hubel [1] and Torsten Nils Wiesel, won the 1981 Nobel Prize in Physiology and Medicine for his work with split-brain research.
Roger Wolcott Sperry pioneered the inception of the chemoaffinity hypothesis following his 1960s experiments on the African clawed frog. [2] He would remove the eye of a frog and reinsert it rotated upside-down—the visual nervous system would eventually repair itself, [3] and the frog would exhibit inverted vision.
His theory was based on theories of the modularity of cognitive functions, including well-documented specializations in the brain's cerebral cortex and limbic systems, and the research into left-right brain lateralization by Roger Wolcott Sperry, Robert Ornstein, Henry Mintzberg, and Michael Gazzaniga. [6]
The concept was first introduced by Michael Gazzaniga while he performed research on split-brain patients during the early 1970s with Roger Sperry at the California Institute of Technology. [ 5 ] [ 6 ] [ 7 ] Sperry eventually received the 1981 Nobel Prize in Medicine for his contributions to split-brain research.
Notable researchers in the field include Roger Sperry, one of the first to publish ideas involving a dual consciousness; and his famous graduate student, Michael Gazzaniga. Their results found a pattern among patients: severing the entire corpus callosum stops the interhemispheric transfer of perceptual, sensory, motor, and other forms of ...
Torsten Nils Wiesel (born 3 June 1924) is a Swedish neurophysiologist.With David H. Hubel, [5] [6] [7] he received the 1981 Nobel Prize in Physiology or Medicine, [4] for their discoveries concerning information processing in the visual system; the prize was shared with Roger W. Sperry [8] for his independent research on the cerebral hemispheres.
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From the year 2000 onwards, a growing number of results have been interpreted in favor of the common coding theory. For instance, one functional MRI study demonstrated that the brain's response to the 2/3 power law of motion (i.e., which dictates a strong coupling between movement curvature and velocity) is much stronger and more widespread tha