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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]
Julian Jaynes hypothesized a bicameral mind theory (which relies heavily on Gazzaniga's research on split-brain patients), where the communication between Wernicke's area and its right-hemisphere analogue was the "bicameral" structure. This structure resulted in voices/images that represented mostly warning and survival instruction, originating ...
Research by Michael Gazzaniga and Roger Wolcott Sperry in the 1960s on split-brain patients led to an even greater understanding of functional laterality. Split-brain patients are patients who have undergone corpus callosotomy (usually as a treatment for severe epilepsy), a severing of a large part of the corpus callosum .
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Neuropsychology is a branch of psychology concerned with how a person's cognition and behavior are related to the brain and the rest of the nervous system.Professionals in this branch of psychology focus on how injuries or illnesses of the brain affect cognitive and behavioral functions.
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